963 results on '"J Camps"'
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2. Comparison of the optical quality vision between real post-LASIK myopic laser surgery and the simulated implantation of a phakic IOL in low myopia
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Celia García, Vicente J. Camps, María T. Caballero, David P. Piñero, Pedro Tañá, Cristina Tello, and Juan J. Miret
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Medicine ,Science - Abstract
Abstract A phakic intraocular lens (PIOL) of − 4.5 D was characterized from its wavefront aberration profile. A preclinical study was conducted using pre- and post-surgery data from four patients that had undergone myopic laser refractive surgery. All these patients would have needed a PIOL of − 4.5 D. Pre-surgery data were used to simulate the effect of a PIOL implantation. Post myopic refractive surgery data were used to calculate the post-LASIK eye model. Modulation transfer function (MTF), point spread function (PSF) and simulation of optotypes vision were obtained and compared. The PIOL did not worsen the optical quality of the eyes evaluated. High order Aberrations were always higher in the post-LASIK eye model. Optics quality trended to be better in PIOL implantation than post-LASIK surgery as pupil size increased.
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- 2022
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3. Understanding the Real Effect of the High-Order Aberrations after Myopic Femto-Lasik
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Juan J. Miret, Ester Rojas, Vicente J. Camps, Celia Garcia, Maria T. Caballero, Begoña Martín, and Enrique Chipont
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myopic Femto-LASIK ,high-order aberrations ,pupil size ,visual acuity ,eye simulation ,Optics. Light ,QC350-467 ,Applied optics. Photonics ,TA1501-1820 - Abstract
In this work we try to understand the real effect of increase in aberrations after Femto-LASIK surgery on the patient’s final visual quality, specifically when the visual acuity measurement is considered. A clinical study with 37 eyes of 20 patients that underwent myopic Femto-LASIK surgery and different personalized eye model simulations were carried out. In clinical study, correlations between pre- and postoperative parameters with visual acuity were analysed. Eye simulations (based on real data) provided simulations of vision quality before and after surgery. Our main results showed a significant increase in aberrations was obtained after surgery; however, no differences were found between the preoperative corrected distance visual acuity (CDVA) and the postoperative uncorrected distance visual acuity (UDVA). This absence of differences in visual quality could be explained by performing different simulations on three eyes that would cover most of the possible clinical situations. Simulations were implemented considering a pupil size of 2.5 mm and the personalized data of each patient. Results showed that final visual acuity (VA) change are determined by the final high-order aberrations (HOAS) and their increase after surgery but measured under photopic conditions. In conclusion, customized analysis of higher-order aberrations in scotopic pupils better predicts patient visual acuity after Lasik surgery.
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- 2022
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4. Analysis and comparison of monofocal, extended depth of focus and trifocal intraocular lens profiles
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Juan J. Miret, Vicente J. Camps, Celia García, Maria T. Caballero, and Juan M. Gonzalez-Leal
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Medicine ,Science - Abstract
Abstract To test the feasibility of using profilometers to extract information about IOL surfaces design. A standard monofocal IOL (Tecnis 1), a monofocal IOL that provided some depth of focus (Eyhance), an extended depth of focus IOL based on refractive optics (Mini Well) and a trifocal IOL based on diffractive optics were used in this study (Tecnis Synergy). The surface topography of the IOLs was measured by using a multimode optical profilometer. Posterior surface of Tecnis 1 IOL was spherical and the anterior surface aspherical. In the Eyhance IOL, posterior surface was spherical and anterior surface did not fit to any of our reference surfaces, indicating a higher order aspheric surface design. In the Mini Well Ready IOL, a best-fit sphere surface was obtained for the second surface and a high order aspherical surface design was deduced for the first surface. The anterior surface of the Synergy IOL was aspherical and the base curve of the diffractive structure fitted very well to a spherical surface. To consider an aspheric surface as possible best-fit surface provided more information than if only best-fit spherical surface was considered. The high order aspheric surface designs employed in the IOLs studied presented differences, regarding best-fit asphere surface, higher than 1 micron. These differences were correlated with the generation of spherical aberration complex profiles (with Zernike terms higher than 4th order) and with the production of distinct amounts of depth of focus. This method was also useful to deduce the base curve of diffractive surfaces.
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- 2022
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5. Intrasession repeatability of pupil size measurements under different light levels provided by a multidiagnostic device in healthy eyes
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David P. Piñero, Dolores de Fez, Inmaculada Cabezos, Alberto López-Navarro, María T. Caballero, and Vicente J. Camps
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Scheimpflug imaging ,VX120 system ,Pupillometry ,Pupil diameter ,Scotopic ,Mesopic ,Ophthalmology ,RE1-994 - Abstract
Abstract Background The measurement of the pupillary function is an indispensable test in some eye examinations, being necessary the evaluation of the precision of instruments performing such measures. The aim of this study was to evaluate the intrasession repeatability of pupil size measurements provided by a multidiagnostic platform in a large sample of healthy eyes. Methods This prospective study enrolled 100 healthy eyes of 100 patients, with ages ranging from 23 to 65 years old. Repeated pupil size measures under photopic (P, 220 lx), mesopic (M, 160 lx), low mesopic (L, 70 lx), and scotopic conditions (S, 1 lx) were obtained with the VX120 system (Visionix-Luneau Technologies, Chartres, France) after a complete eye exam. Likewise, pupil size was also measured once in the fellow eye in a total of 75 eyes. The level of intrasession variability as well as differences between fellow eyes were evaluated. Results Most of differences between repeated measures did not exceed 0.5 mm (82% of S and 100% of P below this value). No significant differences between these repeated measures were found for S (p = 0.099) and L (p = 0.751). However, statistically significant differences were found between repeated measures for M (p = 0.002) and P (p = 0.003). The analysis of clinical relevance of differences between pairs (Passing-Bablok) only confirmed the clinical relevance of differences between the first and second repeated measurement of M. Concerning the comparative analysis between fellow eyes, no statistically significant differences in pupil size were found between right and left eyes in any light condition evaluated (p ≥ 0.227). Conclusions The VX120 system can provide consistent measurements of pupil size under scotopic, low mesopic and photopic conditions, with a relative limitation under mesopic conditions.
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- 2020
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6. Intrasession repeatability of ocular anatomical measurements obtained with a multidiagnostic device in healthy eyes
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David P. Piñero, Inmaculada Cabezos, Alberto López-Navarro, Dolores de Fez, María T. Caballero, and Vicente J. Camps
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Anterior chamber depth ,Pachymetry ,White-to-white ,Irido-corneal angle ,Scheimpflug imaging ,VX120 system ,Ophthalmology ,RE1-994 - Abstract
Abstract Background To evaluate the intrasession repeatability of anterior chamber depth (ACD), central (CCT) and peripheral corneal thickness (PCT), white-to-white diameter (WTW), and irido-corneal angle (IA) measurements obtained with a multidiagnostic device in healthy eyes. Methods A total of 107 eyes of 107 patients ranging in age from 23 to 65 years were examined with the VX120 system (Visionix-Luneau Technologies). Three consecutive measurements were obtained with this device to assess the intrasession repeatability of ACD, CCT, PCT at different nasal and temporal locations, WTW, and nasal and temporal IA. Data analysis included the calculation of within-subject standard deviation (Sw), intrasubject precision (1.96xSw), coefficient of variation (CV) and intraclass correlation coefficient (ICC). Results The Sw and CV for ACD was 0.03 mm and 1.16%, respectively, with an ICC of 0.992. The Sw values for central and peripheral pachymetric measurements were below 9 μm, with CV of less than 1.6% and ICC of 0.976 or higher. For IA measurements, Sw values of 0.84 or lower were found, with a CV between 1 and 2%, and an ICC of more than 0.970. The Sw for WTW was 0.24 mm and the CV was 1.95%. No statistically significant correlations were found between any anatomical parameter evaluated and their Sw and CV values associated (−0.220 ≤ r ≤ 0.204, p ≥ 0.125). Conclusions The VX120 system is able to provide repeatable measurements of anatomical parameters in healthy eyes. Inter-observer repeatability should be evaluated in future studies.
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- 2017
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7. Relationship between Medium-Term Changes in Intraocular Lens Position and Refraction after Cataract Surgery with Two Different Models of Monofocal Lenses
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Hideki Fukumitsu, Vicent J. Camps, Sara Miraflores, and David P. Piñero
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effective lens position ,cataract surgery ,intraocular lens ,IOL power calculation ,optical biometry ,Medicine - Abstract
The aim of this prospective descriptive study was to characterize the variations of the clinical effective lens position (ELP) (considering paraxial optics and postoperative data) and the intraocular lens (IOL) position, using “eye” data gathered from a 6-month follow-up of patients who underwent uneventful cataract surgery. Patients were implanted with two different monofocal IOLs: AcrySof IQ SN60WF (Alcon) (Group 1, 247 eyes) and Akreos MI60L (Bausch & Lomb) (Group 2, 104 eyes). No significant differences were found between groups concerning spherical equivalent (SE), axial length, and clinical ELP changes, from 1 to 6 months after surgery (p ≥ 0.516). A more positive change in postoperative anterior chamber depth was found in Group 2, but the difference did not reach statistical significance (p = 0.065). No significant moderate to strong correlations were found between the changes in clinical ELP and preoperative data. The correlation between the changes in SE and clinical ELP over time was strong and statistically significant (groups 1 and 2: r = 0.957 and r = 0.993, p < 0.001). In conclusion, changes in refraction from 1 to 6 months after cataract surgery, with single-piece monofocal IOLs, are not clinically relevant, which correlates with the presence of good positional stability. These changes cannot be predicted preoperatively and considered in IOL power calculations.
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- 2021
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8. Laparoscopic and robotic distal pancreatectomy: the choice and the future
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Francisco Espin Alvarez, María Isabel García-Domingo, Manel Cremades Pérez, Fernando Pardo Aranda, Laura Vidal Piñeiro, Eric Herrero Fonollosa, Jordi Navinés López, Alba Zárate Pinedo, J. Camps-Lasa, and Esteban Cugat Andorrá
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General Engineering - Published
- 2023
9. Multichannel perimetric alterations in systemic lupus erythematosus treated with hydroxychloroquine
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David P. Piñero, Begoña Monllor, Vicente J. Camps, and Dolores de Fez
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Multichannel perimetry ,Lupus disease ,Visual pathways ,Contrast sensitivity ,Hydroxychloroquine maculopathy ,Ophthalmology ,RE1-994 ,Optics. Light ,QC350-467 - Abstract
Systemic lupus erythematosus (SLE) is a multiorgan autoimmune disease of unknown etiology with many clinical manifestations. We report the first case of SLE in which visual alterations were evaluated with multichannel perimetry. Some achromatic and color vision alterations may be present in SLE, especially when treated with hydroxychloroquine. The sensitivity losses detected in the chromatic channels in the central zone of the visual field were consistent with the results of the FM 100 Hue color test. Likewise, the multichannel perimetry detected sensitivity losses in the parafoveal area for both chromatic channels, especially for the blue-yellow.
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- 2017
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10. Preliminary validation of an optimized algorithm for intraocular lens power calculation in keratoconus
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Vicente J Camps, David P Piñero, Esteban Caravaca, and Dolores De Fez
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Cataract surgery ,intraocular lens power ,keratoconus ,keratometric index ,keratometry ,Ophthalmology ,RE1-994 - Abstract
Purpose: This study aimed to evaluate the theoretical influence on intraocular lens power (PIOL) calculation of the use of keratometric approach for corneal power (Pc) calculation in keratoconus and to develop and validate an algorithm preliminarily to minimize this influence. Methods: Pcwas calculated theoretically with the classical keratometric approach, the Gaussian equation, and the keratometric approach using a variable keratometric index (nkadj) dependent on r1c(Pkadj). Differences in PIOLcalculations (ΔPIOL) using keratometric and Gaussian Pcvalues were evaluated. Preliminary clinical validation of a PIOLalgorithm using Pkadjwas performed in 13 keratoconus eyes. Results: PIOLunderestimation was present if Pcwas overestimated, and vice versa. Theoretical PIOLoverestimation up to −5.6 D and −6.2 D using Le Grand and Gullstrand eye models was found for a keratometric index of 1.3375. If nkadjwas used, maximal Δ PIOLwas ±1.1 D, with most of the values ≤±0.6 D. Clinically, PIOLunder- and over-estimations ranged from −1.1 to − 0.4 D. No statistically significant differences were found between PIOLobtained with Pkadjand Gaussian equation (P > 0.05). Conclusion: The use of the keratometric Pcfor PIOLcalculations in keratoconus can lead to significant errors that may be minimized using a Pkadjapproach.
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- 2017
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11. Venous Resection in Pancreatic Oncologic Surgery: Different Techniques for Different Situations
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Farrarons, S. Sentí, primary, Aranda, F. Pardo, additional, Recasens, M. Galofré, additional, Álvarez, F. Espin, additional, Fonollosa, E. Herrero, additional, Domingo, M.I. García, additional, Pérez, M. Cremades, additional, Pinedo, A. Zárate, additional, Lassa, J. Camps, additional, López, J. Navinés, additional, and Andorra, E. Cugat, additional
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- 2023
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12. Treatment of COVID-19 pneumonia with low-dose radiotherapy plus standard of care versus standard of care alone in frail patients
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M. Arenas, B. Piqué, L. Torres-Royo, J. C. Acosta, E. Rodríguez-Tomàs, G. De Febrer, C. Vasco, P. Araguas, J. A. Gómez, B. Malave, M. Árquez, M. Algara, A. Montero, M. Montero, J. M. Simó, X. Gabaldó, D. Parada, F. Riu, S. Sabater, J. Camps, and J. Joven
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Oncology ,Radiology, Nuclear Medicine and imaging - Published
- 2023
13. The efficient urban canopy dependency parametrization (SURY) v1.0 for atmospheric modelling: description and application with the COSMO-CLM model for a Belgian summer
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H. Wouters, M. Demuzere, U. Blahak, K. Fortuniak, B. Maiheu, J. Camps, D. Tielemans, and N. P. M. van Lipzig
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Geology ,QE1-996.5 - Abstract
This paper presents the Semi-empirical URban canopY parametrization (SURY) v1.0, which bridges the gap between bulk urban land-surface schemes and explicit-canyon schemes. Based on detailed observational studies, modelling experiments and available parameter inventories, it offers a robust translation of urban canopy parameters – containing the three-dimensional information – into bulk parameters. As a result, it brings canopy-dependent urban physics to existing bulk urban land-surface schemes of atmospheric models. At the same time, SURY preserves a low computational cost of bulk schemes for efficient numerical weather prediction and climate modelling at the convection-permitting scales. It offers versatility and consistency for employing both urban canopy parameters from bottom-up inventories and bulk parameters from top-down estimates. SURY is tested for Belgium at 2.8 km resolution with the COSMO-CLM model (v5.0_clm6) that is extended with the bulk urban land-surface scheme TERRA_URB (v2.0). The model reproduces very well the urban heat islands observed from in situ urban-climate observations, satellite imagery and tower observations, which is in contrast to the original COSMO-CLM model without an urban land-surface scheme. As an application of SURY, the sensitivity of atmospheric modelling with the COSMO-CLM model is addressed for the urban canopy parameter ranges from the local climate zones of http://WUDAPT.org. City-scale effects are found in modelling the land-surface temperatures, air temperatures and associated urban heat islands. Recommendations are formulated for more precise urban atmospheric modelling at the convection-permitting scales. It is concluded that urban canopy parametrizations including SURY, combined with the deployment of the WUDAPT urban database platform and advancements in atmospheric modelling systems, are essential.
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- 2016
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14. Preliminary evaluation of an algorithm to minimize the power error selection of an aspheric intraocular lens by optimizing the estimation of the corneal power and the effective lens position
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David P. Piñero, Vicente J. Camps, María L. Ramón, Verónica Mateo, and Roberto Soto-Negro
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aspheric intraocular lens ,intraocular lens power calculation ,effective lens position ,Ophthalmology ,RE1-994 - Abstract
AIM: To evaluate the refractive predictability achieved with an aspheric intraocular lens(IOL)and to develop a preliminary optimized algorithm for the calculation of its power(PIOL).METHODS: This study included 65 eyes implanted with the aspheric IOL LENTIS L-313(Oculentis GmbH)that were divided into 2 groups: 12 eyes(8 patients)with PIOL≥23.0 D(group A), and 53 eyes(35 patients)with PIOLIOLadj)was calculated considering a variable refractive index for corneal power estimation, the refractive outcome obtained, and an adjusted effective lens position(ELPadj)according to age and anatomical factors. RESULTS: Postoperative spherical equivalent ranged from -0.75 to +0.75 D and from -1.38 to +0.75 D in groups A and B, respectively. No statistically significant differences were found in groups A(P=0.64)and B(P=0.82)between PIOLadj and the IOL power implanted(PIOLReal). The Bland and Altman analysis showed ranges of agreement between PIOLadj and PIOLReal of +1.11 to -0.96 D and +1.14 to -1.18 D in groups A and B, respectively. Clinically and statistically significant differences were found between PIOLadj and PIOL obtained with Hoffer Q and Holladay I formulas(PCONCLUSION: The refractive predictability of cataract surgery with implantation of an aspheric IOL can be optimized using paraxial optics combined with linear algorithms to minimize the error associated to the estimation of corneal power and ELP.
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- 2016
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15. PO-1450 Clinical Outcome and Radiologic Changes in SARS-CoV-2 Pneumonia treated with Low-Dose Radiotherapy
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J.C. Acosta Arteaga, L. Torres Royo, E. Rodríguez-Tomàs, G. De Febrer, C. Vasco, J.A. Gomez, P. Araguas, B. Malave, M. Arquez, M. Algara, A. Montero, M. Montero, J.M. Simo, X. Gavaldà, B. Pique, D. Parada, S. Sabater, J. Camps, J. Joven, and M. Arenas
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Oncology ,Radiology, Nuclear Medicine and imaging ,Hematology - Published
- 2022
16. Publisher Correction: Feasibility and effects of enhanced recovery vs. conventional care after emergency colon surgery for patients with left colon perforation
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X. Viñas, E. Macarulla, C. Brugiotti, J. M. Ramirez, A. Pedregosa, S. Sanchez, J. Camps, and A. Arroyo
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Medicine ,Science - Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
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- 2020
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17. Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens
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David P. Piñero, Vicente J. Camps, María L. Ramón, Verónica Mateo, and Rafael J. Pérez-Cambrodí
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Mplus ,multifocal intraocular lens ,keratometry ,effective lens position ,intraocular lens power ,Ophthalmology ,RE1-994 - Abstract
AIM:To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the prediction of the effective lens position (ELP).METHODS:Retrospective study including a total of 25 eyes of 13 patients (age, 50 to 83y) with previous cataract surgery with implantation of the Lentis Mplus LS-312 IOL (Oculentis GmbH, Germany). In all cases, an adjusted IOL power (PIOLadj) was calculated based on Gaussian optics using a variable keratometric index value (nkadj) for the estimation of the corneal power (Pkadj) and on a new value for ELP (ELPadj) obtained by multiple regression analysis. This PIOLadj was compared with the IOL power implanted (PIOLReal) and the value proposed by three conventional formulas (Haigis, Hoffer Q and Holladay Ⅰ).RESULTS:PIOLReal was not significantly different than PIOLadj and Holladay IOL power (P>0.05). In the Bland and Altman analysis, PIOLadj showed lower mean difference (-0.07 D) and limits of agreement (of 1.47 and -1.61 D) when compared to PIOLReal than the IOL power value obtained with the Holladay formula. Furthermore, ELPadj was significantly lower than ELP calculated with other conventional formulas (PCONCLUSION:Refractive outcomes after cataract surgery with implantation of the multifocal IOL Lentis Mplus LS-312 can be optimized by minimizing the keratometric error and by estimating ELP using a mathematical expression dependent on anatomical factors.
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- 2015
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18. Positional accommodative intraocular lens power error induced by the estimation of the corneal power and the effective lens position
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David P Piñero, Vicente J Camps, María L Ramón, Verónica Mateo, and Rafael J Pérez-Cambrodí
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Community ,digital imaging ,Karnataka Internet-assisted Diagnosis of Retinopathy of Prematurity ,retinopathy of prematurity ,telemedicine ,universal screening ,Age-related macular degeneration ,en-face optical coherence tomography ,polypoidal choroidal vasculopathy ,Choroid ,enhanced depth imaging technique ,swept source optical coherence tomography ,Choroidal imaging ,choroidal thickness ,retinal dystrophies ,Choroidal neovascularization ,idiopathic juxtafoveal telangiectasis ,juxtafoveal retinal telangiectasia ,lutein ,macular edema ,macular pigment ,macular telangiectasia ,Müller cells ,parafoveal telangiectasis ,perifoveal telangiectasis ,retinal angiomatous proliferation ,retinal telangiectasis ,subretinal neovascularization ,zeaxanthin ,Microscope-integrated optical coherence tomography ,RESCAN ,spectral domain optical coherence tomography ,vitreoretinal surgery ,Central reading center ,randomized controlled trial ,standard operating procedure ,Fundus autofluorescence ,lipofuscin ,retina ,retinal imaging ,Cystoid macular edema ,dexamethasone implant ,external limiting membrane ,optical coherence tomography ,Ozurdex ,serous retinal detachment ,uveitis ,Adaptive optics ,axial length ,cone density ,myopia ,Artifact ,foveal diameter ,foveal slope ,ocular magnification ,Emmetropization ,hand-held ,spectral-domain optical coherence tomography ,visual acuity ,Accommodating intraocular lenses ,Crystalens HD ,effective lens position ,intraocular lenses power ,keratometry ,Ophthalmology ,RE1-994 - Abstract
Purpose: To evaluate the predictability of the refractive correction achieved with a positional accommodating intraocular lenses (IOL) and to develop a potential optimization of it by minimizing the error associated with the keratometric estimation of the corneal power and by developing a predictive formula for the effective lens position (ELP). Materials and Methods: Clinical data from 25 eyes of 14 patients (age range, 52-77 years) and undergoing cataract surgery with implantation of the accommodating IOL Crystalens HD (Bausch and Lomb) were retrospectively reviewed. In all cases, the calculation of an adjusted IOL power (P IOLadj ) based on Gaussian optics considering the residual refractive error was done using a variable keratometric index value (n kadj ) for corneal power estimation with and without using an estimation algorithm for ELP obtained by multiple regression analysis (ELP adj ). P IOLadj was compared to the real IOL power implanted (P IOLReal , calculated with the SRK-T formula) and also to the values estimated by the Haigis, HofferQ, and Holladay I formulas. Results: No statistically significant differences were found between P IOLReal and P IOLadj when ELP adj was used (P = 0.10), with a range of agreement between calculations of 1.23 D. In contrast, P IOLReal was significantly higher when compared to P IOLadj without using ELP adj and also compared to the values estimated by the other formulas. Conclusions: Predictable refractive outcomes can be obtained with the accommodating IOL Crystalens HD using a variable keratometric index for corneal power estimation and by estimating ELP with an algorithm dependent on anatomical factors and age.
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- 2015
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19. Partial Least Squares - Diffusion Tensor Imaging (PLS-DTI): A novel approach for biomarker imaging in breast cancer
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E. Aguado-Sarrió, J.M. Prats-Montalbán, G. Robles-Lozano, J. Camps-Herrero, and A. Ferrer
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Process Chemistry and Technology ,Spectroscopy ,Software ,Computer Science Applications ,Analytical Chemistry - Published
- 2023
20. Corneal Topographic and Aberrometric Measurements Obtained with a Multidiagnostic Device in Healthy Eyes: Intrasession Repeatability
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David P. Piñero, Alberto López-Navarro, Inmaculada Cabezos, Dolores de Fez, María T. Caballero, and Vicent J. Camps
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Ophthalmology ,RE1-994 - Abstract
Purpose. To evaluate the intrasession repeatability of corneal curvature, eccentricity, and aberrometric measurements obtained with a multidiagnostic device in healthy eyes. Methods. This study enrolled 107 eyes of 107 patients ranging in age from 23 to 65 years. All of them underwent a complete anterior segment examination with the VX120 system (Visionix-Luneau Technologies, Chartres, France). Three consecutive measurements were obtained. The within-subject standard deviation (Sw), intrasubject precision (1.96×Sw), and intraclass correlation coefficient (ICC) were calculated. Results. All Sw for corneal power measurements were below 0.26 D, with ICC above 0.982. The Sw for corneal astigmatism at different areas (3, 5, and 7 mm) was below 0.21 D, with ICC above 0.913. Concerning the axis of astigmatism, its Sw was below 11.27°, with ICC above 0.975. The Sw and ICC for corneal eccentricity were 0.067 and 0.957, respectively. The Sw and ICC for high-order aberration root mean square (RMS) were 0.048 µm and 0.901, respectively. For 3rd- and 4th-order aberrometric parameters, all Sw were below 0.037 µm and all ICC were higher than 0.84, except for quadrafoil RMS (ICC: 0.689). Conclusions. The multidiagnostic device evaluated is able to provide consistent measurements of corneal power, eccentricity, and third- and fourth-order aberrations in healthy eyes.
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- 2017
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21. In Vitro Aberrometric Assessment of a Multifocal Intraocular Lens and Two Extended Depth of Focus IOLs
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Vicente J. Camps, Angel Tolosa, David P. Piñero, Dolores de Fez, María T. Caballero, and Juan J. Miret
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Ophthalmology ,RE1-994 - Abstract
Purpose. To analyze the “in vitro” aberrometric pattern of a refractive IOL and two extended depth of focus IOLs. Methods. A special optical bench with a Shack-Hartmann wavefront sensor (SH) was designed for the measurement. Three presbyopia correction IOLs were analyzed: Mini WELL (MW), TECNIS Symfony ZXR00 (SYM), and Lentis Mplus X LS-313 MF30 (MP). Three different pupil sizes were used for the comparison: 3, 4, and 4.7 mm. Results. MW generated negative primary and positive secondary spherical aberrations (SA) for the apertures of 3 mm (−0.13 and +0.12 μm), 4 mm (−0.12 and +0.08 μm), and 4.7 mm (−0.11 and +0.08 μm), while the SYM only generated negative primary SA for 4 and 4.7 mm apertures (−0.12 μm and −0.20 μm, resp.). The MP induced coma and trefoil for all pupils and showed significant HOAs for apertures of 4 and 4.7 mm. Conclusions. In an optical bench, the MW induces negative primary and positive secondary SA for all pupils. The SYM aberrations seem to be pupil dependent; it does not produce negative primary SA for 3 mm but increases for higher pupils. Meanwhile, the HOAs for the MW and SYM were not significant. The MP showed in all cases the highest HOAs.
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- 2017
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22. Algorithm for Correcting the Keratometric Error in the Estimation of the Corneal Power in Keratoconus Eyes after Accelerated Corneal Collagen Crosslinking
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David P. Piñero, Vicente J. Camps, Esteban Caravaca-Arens, Dolores de Fez, and Francisco J. Blanes-Mompó
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Ophthalmology ,RE1-994 - Abstract
Purpose. To analyze the errors associated to corneal power calculation using the keratometric approach in keratoconus eyes after accelerated corneal collagen crosslinking (CXL) surgery and to obtain a model for the estimation of an adjusted corneal refractive index nkadj minimizing such errors. Methods. Potential differences (ΔPc) among keratometric (Pk) and Gaussian corneal power (PcGauss) were simulated. Three algorithms based on the use of nkadj for the estimation of an adjusted keratometric corneal power (Pkadj) were developed. The agreement between Pk1.3375 (keratometric power using the keratometric index of 1.3375), PcGauss, and Pkadj was evaluated. The validity of the algorithm developed was investigated in 21 keratoconus eyes undergoing accelerated CXL. Results. Pk1.3375 overestimated corneal power between 0.3 and 3.2 D in theoretical simulations and between 0.8 and 2.9 D in the clinical study (ΔPc). Three linear equations were defined for nkadj to be used for different ranges of r1c. In the clinical study, differences between Pkadj and PcGauss did not exceed ±0.8 D nk=1.3375. No statistically significant differences were found between Pkadj and PcGauss (p>0.05) and Pk1.3375 and Pkadj (p
- Published
- 2017
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23. Op weg naar de VTV-2024. Definitierapport Volksgezondheid Toekomst Verkenning 2024
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L den Broeder, E Heugens, C Couwenbergh, M van Bakel, J Camps, L Dekker, H Hilderink, F van der Lucht, E Uiters, A Spijkerman, B Staatsen, and K van Zoonen
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RIVM rapport 2022-0049 - Abstract
Het RIVM verkent elke vier jaar welke ontwikkelingen er te verwachten zijn op het gebied van gezondheid en zorg. Het resultaat hiervan is de Volksgezondheid Toekomst Verkenning (VTV). De VTV is een belangrijke bron voor landelijk en lokaal beleid voor de gezondheid. Politieke partijen kunnen de informatie gebruiken voor hun verkiezingsprogramma's. De volgende VTV verschijnt in 2024. Dit definitierapport beschrijft de inhoud en aanpak van de VTV-2024. De VTV-2024 schetst een breed beeld van de toekomst van gezondheid en zorg. Het kijkt niet alleen naar ziekte en sterfte, maar ook naar de factoren die invloed hebben op gezondheid, zoals de leefomgeving en armoede. Verder kijkt de VTV niet alleen naar de cijfers, maar ook naar wat ze betekenen. Dit alles gebeurt op basis van de kennis van wetenschappelijke experts, binnen en buiten het RIVM, en professionals uit het veld. Ook wordt aan Nederlanders gevraagd hoe zij aankijken tegen gezondheid en zorg in de toekomst. De VTV-2024 berekent onder meer het aantal jaren dat mensen in 2050 in goede gezondheid zullen leven. Hiervoor bekijkt het RIVM hoe vaak allerlei ziekten en aandoeningen voorkomen, zoals diabetes, hart- en vaatziekten, kanker en psychische aandoeningen. Bij deze berekeningen wordt speciaal gekeken naar twee onzekere factoren die de gezondheid en zorg kunnen beïnvloeden: demografische ontwikkelingen (zoals migratie en ouderen) en de invloed van digitalisering op de zorg en de samenleving. Daarnaast gaat de VTV-2024 dieper in op drie thema's: Gezonde generaties in 2050 (jongeren en 60-plussers), Zorg en het sociale domein en Naar een gezonde leefomgeving en gezond klimaat. Binnen alle drie de thema's wordt ook stilgestaan bij de onderwerpen diversiteit en infectieziekten, zoals corona. Op basis van al deze kennis en inzichten benoemt de VTV-2024 voor welke maatschappelijke opgaven Nederland komt te staan. En hoe de maatschappij zich daarop volgens experts en burgers het beste kan voorbereiden: nu en in de toekomst.
- Published
- 2022
24. Contribution of aneuploidy to the initiation and progression of childhood B-cell acute lymphoblastic leukemia
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N Thampi, C Bueno, V Rodríguez-Cortez, A Martínez, M Vinyoles, J Camps, P Menendez, and O Molina
- Published
- 2022
25. Could anatomical changes occurring with cataract surgery have a clinically significant effect on effective intraocular lens position?
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David P. Piñero, Vicent J. Camps, Hideki Fukumitsu, Sara Miraflores, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, and Grupo de Óptica y Percepción Visual (GOPV)
- Subjects
Effective lens position ,medicine.medical_specialty ,Refractive error ,medicine.medical_treatment ,SRK-T ,Cataract surgery ,Mean difference ,Axial length ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,medicine ,Óptica ,business.industry ,IOL power calculation ,Mean age ,Potential measurement ,medicine.disease ,Intraocular lens position ,Intraocular lenses ,030221 ophthalmology & optometry ,sense organs ,business ,030217 neurology & neurosurgery - Abstract
Purpose: To assess if the calculation of the effective lens position (ELP) of two different monofocal intraocular lenses (IOLs) could be optimized by considering the potential anatomical changes occurring after cataract surgery. Methods: Prospective, descriptive, single-center study involving 472 eyes of 280 subjects (mean age 73.5 years) undergoing cataract surgery that were divided into two groups according to the IOL implanted: group 1330 eyes with AcrySof IQ SN60WF (Alcon), and group 2142 eyes with Akreos MI60L (Bausch + Lomb). Refractive and biometric changes were evaluated during a period of 6-month follow-up with an optical biometer (considering potential measurement artifacts). Comparison of ELP estimated with the SRK-T formula (ELPSRK-T) and ELP calculated considering clinical real data was made (ELPAXL-corrected clinical). Results: Besides significant changes in refraction (p ≤ 0.020), a significant increase in anterior chamber depth (ACD) (p
- Published
- 2021
26. PARAOXONASE 1 RELATED VARIABLES AND MARKERS OF INFLAMMATION IN COVID-19
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J Camps, S Iftimie, X Gabaldó-Barrios, E Rodríguez-Tomàs, H Castañé, G Baiges-Gaya, Simó, Josep M, A Castro, and J Joven
- Published
- 2022
- Full Text
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27. Long-Term Results of Liver-First Approach Strategy in Patients with Advanced Synchronous Liver Metastases from Colorectal Cancer
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Galofré-Recasens, M., primary, Fonollosa, E. Herrero, additional, Pinedo, A. Zárate, additional, Lasa, J. Camps, additional, Álvarez, F. Espín, additional, García-Domingo, M.I., additional, Nogueras, L. Cirera, additional, Beser, M. Paraira, additional, Campos, A. Rodriguez, additional, and Andorrà, E. Cugat, additional
- Published
- 2022
- Full Text
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28. Near-range atmospheric dispersion of an anomalous selenium-75 emission
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J.P.K.W. Frankemölle, J. Camps, P. De Meutter, P. Antoine, A.W. Delcloo, F. Vermeersch, and J. Meyers
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Health, Toxicology and Mutagenesis ,Environmental Chemistry ,General Medicine ,Pollution ,Waste Management and Disposal - Abstract
On May 15th of 2019, an anomalous emission of selenium-75 was detected at the stack of the Belgian Reactor 2 (BR2) in Mol. Although the release exceeded the prescribed limits for BR2, there was no harm to the population or food chain and so the event was classified as INES 1. However, it was very interesting from the perspective of near-range atmospheric dispersion. This publication brings together all available information at the near range - stack-monitored source term data, on-site meteorological data, ambient dose equivalent rates, deposition and concentration measurements - in one dataset that covers the initial puff release on May 15th, 2019 as well as a residual release through early November 2019. To demonstrate the consistency of this dataset, supporting atmospheric transport and dispersion calculations are performed using a Gaussian plume model. These calculations, in turn, are supported by near-range Flexpart calculations in the context of the residual release.
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- 2022
29. Comparison of Four Intraocular Power Calculation Formulas in Keratoconus Eyes
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David P. Piñero, Verónica Mateo, Esteban Caravaca-Arens, Fady E. Labib, Vicente J. Camps, Ramy R. Fikry Riad, María Teresa Caballero Caballero, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, and Grupo de Óptica y Percepción Visual (GOPV)
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Keratoconus ,medicine.medical_specialty ,genetic structures ,medicine.medical_treatment ,Cataract surgery ,Hoffer Q formula ,Power (social and political) ,03 medical and health sciences ,0302 clinical medicine ,Holladay 1 formula ,Ophthalmology ,medicine ,030304 developmental biology ,Óptica ,0303 health sciences ,business.industry ,Haigis formula ,medicine.disease ,eye diseases ,Intraocular lens power calculation ,SRK-T formula ,030221 ophthalmology & optometry ,Christian ministry ,sense organs ,business - Abstract
Introduction: This study aimed to evaluate the differences in Intraocular Lens (IOL) power in keratoconus (KC) eyes between calculations obtained clinically with the most commonly used formulas in healthy eyes (SRK T, Holladay 1, Hoffer Q and Haigis) as well as to define predictive factors for such differences. Methods: This retrospective study comprised 43 keratoconus eyes of 22 patients with no previous ocular surgery. IOL powers were calculated with SRK T, Holladay 1, Hoffer Q, and Haigis formulas, considering the Effective Lens Position (ELP) of each formula and the desired refraction of 0 D (Rdes=0 D). Results: All differences between formulas were statistically significant and clinically relevant. Haigis formula always provided higher values compared to the rest of the formulas, with the highest differences observed when comparing Haigis with Hoffer (0.84 D) and Hoffer Q (1.17 D) formulas. The lowest difference was obtained for the comparison between SRK-T and Holladay 1 formulas (0.22 D). Differences of the Haigis formula compared to the rest were higher as the magnitude of the IOL power calculated decreased, becoming the patient more myopic. Increased differences between Haigis and Hoffer formulas were observed in eyes with deep anterior chambers, steeper anterior and posterior corneal surfaces, and high axial lengths. Conclusion: The most comparable results in IOL power in keratoconus are provided by the Holladay 1 and SRK T formulas, whereas the Haigis formula provides the most discrepant outcome. The consideration of the curvature of the second corneal surface in IOL power calculations in keratoconus may decrease the variability between calculation methods. However, other factors as anterior chamber depth or axial length are also relevant.
- Published
- 2021
30. Visual function alterations in essential tremor: A case report
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David P. Piñero, Begoña Monllor, Vicenta Moncho, Vicent J. Camps, and Dolores de Fez
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Multichannel perimetry ,essential tremor ,color vision ,visual pathways ,contrast sensitivity ,Technology ,Optics. Light ,QC350-467 - Abstract
Our purpose is to report alterations in contrast sensitivity function (CSF) and in the magno, parvo and koniocellular visual pathways by means of a multichannel perimeter in case of an essential tremor (ET). A complete evaluation of the visual function was performed in a 69-year old patient, including the analysis of the chromatic discrimination by the Fansworth–Munsell 100 hue test, the measurement of the CSF by the CSV-1000E test, and the detection of potential alteration patterns in the magno, parvo and koniocellular visual pathways by means of a multichannel perimeter. Visual acuity and intraocular pressure (IOP) were within the ranges of normality in both eyes. No abnormalities were detected in the fundoscopic examination and in the optical coherence tomography (OCT) exam. The results of the color vision examination were also within the ranges of normality. A significant decrease in the achromatic CSFs for right eye (RE) and left eye (LE) was detected for all spatial frequencies. The statistical global values provided by the multichannel perimeter confirms that there were significant absolute sensitivity losses compared to the normal pattern in RE. In the LE, only a statistically significant decrease in sensitivity was detected for the blue-yellow (BY) channel. The pattern standard deviation (PSD) values obtained in our patient indicated that there were significant localized losses compared to the normality pattern in the achromatic channel of the RE and in the red-green (RG) channel of the LE. Some color vision alterations may be present in ET that cannot be detected with conventional color vision tests, such as the FM 100 Hue.
- Published
- 2015
- Full Text
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31. Clinical Validation of Adjusted Corneal Power in Patients with Previous Myopic Lasik Surgery
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Vicente J. Camps, David P. Piñero, Veronica Mateo, Celia García, Alberto Artola, Rafael Pérez-Cambrodi, and Pedro Ruiz-Fortes
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Ophthalmology ,RE1-994 - Abstract
Purpose. To validate clinically a new method for estimating the corneal power (Pc) using a variable keratometric index (nkadj) in eyes with previous laser refractive surgery. Setting. University of Alicante and Medimar International Hospital (Oftalmar), Alicante, (Spain). Design. Retrospective case series. Methods. This retrospective study comprised 62 eyes of 62 patients that had undergone myopic LASIK surgery. An algorithm for the calculation of nkadj was used for the estimation of the adjusted keratometric corneal power (Pkadj). This value was compared with the classical keratometric corneal power (Pk), the True Net Power (TNP), and the Gaussian corneal power (PcGauss). Likewise, Pkadj was compared with other previously described methods. Results. Differences between PcGauss and Pc values obtained with all methods evaluated were statistically significant (p
- Published
- 2015
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32. 352P Mutations of SMAD4 and FBXW7 predict poor outcome in TP53-driven metastatic colorectal cancer
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S. Lahoz, A. Rodriguez Hernandez, L. Fernandez-Mañas, T. Gorria, R.M. Zambrano, F.M. Esposito, T. Sauri Nadal, D.S. Pesantez Coronel, G. Riu, M. Cuatrecasas, P. Jares, L. Pedrosa, E. Pineda, A. Postigo, A. Castells, A. Prat, J. Maurel, and J. Camps
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Oncology ,Hematology - Published
- 2022
33. Linfoma anaplásico de células grandes asociado a implantes mamarios. Documento de consenso parte II: estadificación, tratamiento, pronóstico y seguimiento
- Author
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Ricardo Pardo, Rosa Quintana, Antonio Piñero, Carlos Vázquez, Jacobo Cabañas, Fernando Martínez Regueira, Teresa Palomo, Pilar Llamas, Raúl Córdoba, Lorenzo Rabadán, Raquel Barriga, José Mallent, Ander Urruticoetxea, Manel Algara, Ángel Montero, Laia Bernet, María Eugenia Rioja, B. Acea, B. Albi, M. Albi, R. Andrés-Luna, C. Ara, M. Arranz, M. Caba, J. Camps, C. Carcamo, R. Ciérvide, L. Comin, P. Cordeiro, G. De Castro, M. Delgado, M. Durán Poveda, N. Estelles, N. Estrada, E. Fernández, G. Fuster, J. García-Foncillas, I. García, C. García Mur, L. García Pardo, M.A. Gil Olarte, M.T. Gómez, A. González, I. Gutierrez, F. Hernanz, Y. Izarzugaza, J. Jimeno, F. Lobo, D. Martínez, M. Martínez, R. Martínez, P. Matei, J. Masià, S. Menjón, J. Murillo, P. Orihuela, I. Osorio, A. Peña y Lillo, S. Pérez, A. Pinardo, M.A. Piris, M.J. Pla, T. Ramón y Cajal, M. Ramos, T. Ramos, S. Rivas, I. Rodriguez, N. Rodríguez, C. Romero, F. Rojo, J.M. Sanromán, J. Sanz, V. Salvatierra, S. Salido, J.I. Sánchez, J.M. Serra, C. Serrano, M. Socorro, Tejerina Alejandro, Tejerina Antonio, F. Treserra, G. Valadas, M. Vernet, V. Vega, S. Vidal, and L. Zarain
- Subjects
03 medical and health sciences ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Obstetrics and Gynecology ,Radiology, Nuclear Medicine and imaging ,Surgery ,030230 surgery - Abstract
Resumen El linfoma anaplasico de celulas grandes asociado a implantes mamarios (BIA-ALCL segun sus siglas en ingles) es un tipo raro de linfoma no Hodgkin que se ha descrito en el contexto de la cirugia reconstructiva y estetica de mama mediante implantes. Este segundo articulo presenta la parte del consenso de la Sociedad Espanola de Senologia y Patologia Mamaria (SESPM) sobre el tratamiento quirurgico, medico, radioterapico, pronostico y seguimiento.
- Published
- 2019
34. Linfoma anaplásico de células grandes asociado a implantes mamarios. Documento de consenso (I): epidemiología, patogenia, clínica y diagnóstico
- Author
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Ricardo Pardo, Rosa Quintana, Antonio Piñero, Carlos Vázquez, Jacobo Cabañas, Fernando Martínez Regueira, Laia Bernet, María Eugenia Rioja, Lorenzo Rabadán, Raquel Barriga, José Mallent, Ander Urruticoetxea, Manel Algara, Ángel Montero, Teresa Palomo, Pilar Llamas, Raúl Córdoba, B. Acea, B. Albi, M. Albi, R. Andrés-Luna, C. Ara, M. Arranz, M. Caba, J. Camps, C. Carcamo, R. Ciérvide, L. Comin, P. Cordeiro, G. de Castro, M. Delgado, M. Durán Poveda, N. Estelles, N. Estrada, E. Fernández, G. Fuster, J. García-Foncillas, I. García, C. García Mur, L. Garcia Pardo, M.A. Gil Olarte, M.T. Gómez, A. González, I. Gutierrez, F. Hernanz, Y. Izarzugaza, J. Jimeno, F. Lobo, D. Martínez, M. Martínez, R. Martínez, P. Matei, J. Masià, S. Menjón, J. Murillo, P. Orihuela, I. Osorio, A. Peña y Lillo, S. Pérez, A. Pinardo, M.A. Piris, M.J. Pla, T. Ramón y Cajal, M. Ramos, T. Ramos, S. Rivas, I. Rodriguez, N. Rodriguez, C. Romero, F. Rojo, J.M. Sanroman, J. Sanz, V. Salvatierra, S. Salido, J.I. Sánchez, J.M. Serra, C. Serrano, M. Socorro, Alejandro Tejerina, Antonio Tejerina, F. Treserra, G. Valadas, M. Vernet, V. Vega, S. Vidal, and L. Zarain
- Subjects
03 medical and health sciences ,0302 clinical medicine ,Oncology ,030220 oncology & carcinogenesis ,Obstetrics and Gynecology ,Radiology, Nuclear Medicine and imaging ,Surgery ,030230 surgery - Abstract
Resumen El linfoma anaplasico de celulas grandes asociado a implantes mamarios (BIA-ALCL segun sus siglas en ingles) es un tipo raro de linfoma no Hodgkin que se ha descrito en el contexto de la cirugia reconstructiva y estetica de mama mediante implantes. Estos articulos presentan un consenso de la Sociedad Espanola de Senologia y Patologia Mamaria (SESPM) con la idea de unificar, en esta primera parte, los criterios de diagnostico de esta enfermedad describiendo asimismo la epidemiologia y la etiopatogenia.
- Published
- 2019
35. PO-1107 Inflammatory markers in breast cancer patients treated with radiotherapy: Machine Learning approach
- Author
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J. Camps, M. A. Arenas, G. Baiges-Gaya, M. Arquez, E. Rodríguez-Tomàs, J. Joven, José María Durán Gómez, L. Torres, J. Acosta, F. Castaño, and H. Castañé
- Subjects
Oncology ,Radiation therapy ,medicine.medical_specialty ,Breast cancer ,business.industry ,medicine.medical_treatment ,Internal medicine ,medicine ,Radiology, Nuclear Medicine and imaging ,Hematology ,business ,medicine.disease - Published
- 2021
36. New method to improve the quality of vision in cataractous keratoconus eyes
- Author
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Juan Jose Miret, David P. Piñero, Vicente J. Camps, Celia García, Dolores de Fez, María Teresa Caballero Caballero, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, Grupo de Óptica y Percepción Visual (GOPV), and Holografía y Procesado Óptico
- Subjects
Adult ,Male ,0301 basic medicine ,Keratoconus ,medicine.medical_specialty ,Computer science ,medicine.medical_treatment ,Visual Acuity ,Biophysics ,lcsh:Medicine ,Diseases ,Intraocular lens ,Cataract Extraction ,Cataract ,Article ,03 medical and health sciences ,Medical research ,0302 clinical medicine ,Lens Implantation, Intraocular ,Ophthalmology ,medicine ,Humans ,lcsh:Science ,Vision, Ocular ,Óptica ,Wavefront ,Multidisciplinary ,lcsh:R ,Fourier optics ,Wavefront sensor ,medicine.disease ,Quality of vision ,030104 developmental biology ,Optics and photonics ,030221 ophthalmology & optometry ,Female ,lcsh:Q ,Keratoconus eyes - Abstract
To analyze using optical simulations if the proper use of a segmented intraocular lens (IOL) can improve the visual outcomes compared to the implantation of a spherical monofocal IOL. The wavefront profile of the Mplus (Oculentis) and a monofocal IOLs with the phase transformation introduced by each IOL were calculated using a Hartmann-Shack wavefront sensor. In addition, the wavefront profile of schematic eye models of various keratoconus conditions was obtained and was propagated to the IOLs. The optical performance of such combination was obtained after combining ray tracing and Fourier optics. A pre-clinical validation was also evaluated incorporating clinical data from three different keratoconus eyes of three patients. The implantation of the Mplus IOL can compensate or reduce the overall coma of the eye with keratoconus improving the quality of vision compared with a spherical monofocal IOL due to lower displacements of the retinal image or tilting in keratoconus. All theoretical simulations were confirmed afterwards by mean of a preclinical validation. The use of a standard toric segmented IOL with a proper orientation and selection of the addition can improve the optical quality of the keratoconus eye compared to the use of a monofocal spherical IOL. David P. Piñero is supported by the Spanish Ministry of Economy, Industry and Competitiveness within the program Ramón y Cajal, RYC-2016-20471.
- Published
- 2020
37. Long-Term Results of Liver-First Approach Strategy in Patients with Advanced Synchronous Liver Metastases from Colorectal Cancer
- Author
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M. Galofré-Recasens, E. Herrero Fonollosa, A. Zárate Pinedo, J. Camps Lasa, F. Espín Álvarez, M.I. García-Domingo, L. Cirera Nogueras, M. Paraira Beser, A. Rodriguez Campos, and E. Cugat Andorrà
- Subjects
Hepatology ,Gastroenterology - Published
- 2022
38. Pollutant transport in coastal areas with and without background wind
- Author
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J. Camps, J. Massons, M. R. Soler, and E. C. Nickerson
- Subjects
Science ,Physics ,QC1-999 ,Geophysics. Cosmic physics ,QC801-809 - Abstract
A three-dimensional meteorological model and a Lagrangian particle dispersion model are used to study the effects of a uniform large-scale wind on the dispersion of a non-reactive pollutant in a coastal region with complex terrain. Simulations are carried out both with and without a background wind. A comparison between model results and measured data (wind and pollutant concentrations) indicates that the coupled model system provides a useful mechanism for analyzing pollutant dispersion in coastal regions.
- Published
- 1997
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39. Numerical modelling of pollutant dispersion in sea breeze conditions
- Author
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J. Camps, J. Massons, and M. R. Soler
- Subjects
Science ,Physics ,QC1-999 ,Geophysics. Cosmic physics ,QC801-809 - Abstract
The characteristics of air pollution in Tarragona (Spain) were investigated. Tarragona has an important petrochemical industry in a coastal region with a complex terrain. The numerical study was made in sea breeze conditions with a three-dimensional mesoscale model. Temporal and spatial variations of the wind fields have been used in the Eulerian equation for a non-reactive pollutant. The results of this study reveal the complexity of the dispersion patterns due to the combined effects of the sea breeze circulation and the orography. This work presents a comparison between the model output and the observed wind data by sodar and surface wind measurements. The evaluation shows that the model is capable of providing very realistic wind fields within this domain.
- Published
- 1996
- Full Text
- View/download PDF
40. Could anatomical changes occurring with cataract surgery have a clinically significant effect on effective intraocular lens position?
- Author
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Hideki, Fukumitsu, Vicent J, Camps, Sara, Miraflores, and David P, Piñero
- Subjects
Lenses, Intraocular ,Biometry ,Phacoemulsification ,Lens Implantation, Intraocular ,Humans ,Prospective Studies ,Refraction, Ocular ,Cataract ,Aged ,Retrospective Studies - Abstract
To assess if the calculation of the effective lens position (ELP) of two different monofocal intraocular lenses (IOLs) could be optimized by considering the potential anatomical changes occurring after cataract surgery.Prospective, descriptive, single-center study involving 472 eyes of 280 subjects (mean age 73.5 years) undergoing cataract surgery that were divided into two groups according to the IOL implanted: group 1330 eyes with AcrySof IQ SN60WF (Alcon), and group 2142 eyes with Akreos MI60L (Bausch + Lomb). Refractive and biometric changes were evaluated during a period of 6-month follow-up with an optical biometer (considering potential measurement artifacts). Comparison of ELP estimated with the SRK-T formula (ELPBesides significant changes in refraction (p ≤ 0.020), a significant increase in anterior chamber depth (ACD) (p 0.001) and a significant reduction in the axial length (AXL) (p 0.001) were detected at 1 month after surgery. Mean 1-month postoperative AXL change was - 0.08 ± 0.06 and - 0.10 ± 0.11 mm in groups 1 and 2, respectively (p = 0.001), with no significant changes afterward. Mean difference between ELPThe estimation of ELP using the SRK-T formula for the two IOLs evaluated may be optimized considering biometric changes with surgery, helping to understand better some problems of refractive unpredictability.
- Published
- 2020
41. Publisher Correction: Feasibility and effects of enhanced recovery vs. conventional care after emergency colon surgery for patients with left colon perforation
- Author
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Carlo Brugiotti, S. Sanchez, Antonio Arroyo, José Ramírez, J. Camps, X. Viñas, A. Pedregosa, and E. Macarulla
- Subjects
medicine.medical_specialty ,Multidisciplinary ,business.industry ,Science ,Perforation (oil well) ,Surgery ,Left colon ,Enhanced recovery ,Colon surgery ,medicine ,Medicine ,business - Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
- Published
- 2020
42. PRACTICAL COURSE FOR THE DESIGN OF PSYCHOPHYSICAL VISION TESTS
- Author
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M. J. Luque, Dolores de Fez, Mª Carmen García-Domene, Vicente J. Camps, and Mª Amparo Díez-Ajenjo
- Subjects
Optometry ,Vision test ,Psychology ,Course (navigation) - Published
- 2020
43. Intrasession repeatability of pupil size measurements under different light levels provided by a multidiagnostic device in healthy eyes
- Author
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Inmaculada Cabezos, Alberto López-Navarro, María Teresa Caballero Caballero, Vicente J. Camps, David P. Piñero, Dolores de Fez, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, and Grupo de Óptica y Percepción Visual (GOPV)
- Subjects
Adult ,medicine.medical_specialty ,Light ,genetic structures ,Pupil diameter ,Mesopic vision ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,lcsh:Ophthalmology ,Ophthalmology ,Photopic ,Humans ,Medicine ,Prospective Studies ,Scotopic vision ,Aged ,Óptica ,business.industry ,Scotopic ,Pupil size ,Repeated measures design ,Pupil ,Scheimpflug imaging ,General Medicine ,Repeatability ,Middle Aged ,VX120 system ,eye diseases ,Large sample ,Pupillometry ,lcsh:RE1-994 ,030221 ophthalmology & optometry ,Mesopic ,France ,sense organs ,business ,030217 neurology & neurosurgery ,Research Article ,Photopic vision - Abstract
Background The measurement of the pupillary function is an indispensable test in some eye examinations, being necessary the evaluation of the precision of instruments performing such measures. The aim of this study was to evaluate the intrasession repeatability of pupil size measurements provided by a multidiagnostic platform in a large sample of healthy eyes. Methods This prospective study enrolled 100 healthy eyes of 100 patients, with ages ranging from 23 to 65 years old. Repeated pupil size measures under photopic (P, 220 lx), mesopic (M, 160 lx), low mesopic (L, 70 lx), and scotopic conditions (S, 1 lx) were obtained with the VX120 system (Visionix-Luneau Technologies, Chartres, France) after a complete eye exam. Likewise, pupil size was also measured once in the fellow eye in a total of 75 eyes. The level of intrasession variability as well as differences between fellow eyes were evaluated. Results Most of differences between repeated measures did not exceed 0.5 mm (82% of S and 100% of P below this value). No significant differences between these repeated measures were found for S (p = 0.099) and L (p = 0.751). However, statistically significant differences were found between repeated measures for M (p = 0.002) and P (p = 0.003). The analysis of clinical relevance of differences between pairs (Passing-Bablok) only confirmed the clinical relevance of differences between the first and second repeated measurement of M. Concerning the comparative analysis between fellow eyes, no statistically significant differences in pupil size were found between right and left eyes in any light condition evaluated (p ≥ 0.227). Conclusions The VX120 system can provide consistent measurements of pupil size under scotopic, low mesopic and photopic conditions, with a relative limitation under mesopic conditions.
- Published
- 2020
44. Feasibility and effects of enhanced recovery vs. conventional care after emergency colon surgery for patients with left colon perforation
- Author
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José Ramírez, J. Camps, Antonio Arroyo, S. Sanchez, A. Pedregosa, Carlo Brugiotti, E. Macarulla, and X. Viñas
- Subjects
Male ,medicine.medical_specialty ,Colon ,Perforation (oil well) ,lcsh:Medicine ,Peritonitis ,030230 surgery ,Article ,Colonic Diseases ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Colon surgery ,medicine ,Risk of mortality ,Humans ,Prospective Studies ,lcsh:Science ,Prospective cohort study ,Digestive System Surgical Procedures ,Gastrointestinal diseases ,Retrospective Studies ,Postoperative Care ,Multidisciplinary ,business.industry ,Incidence (epidemiology) ,lcsh:R ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Publisher Correction ,Colorectal surgery ,Surgery ,030220 oncology & carcinogenesis ,Female ,lcsh:Q ,Emergency Service, Hospital ,business - Abstract
The impact of an enhanced recovery after surgery (ERAS) programme in emergency colorectal surgery has not yet been reported. The objective of this study was to evaluate the feasibility and the results of patients included in an ERAS protocol following emergency colon surgery for left colon perforation. For this purpose, patients with a low to moderate risk of mortality, according to a Peritonitis Severity Score (PSS), and treated with an ERAS protocol (ERAS group) after emergency surgery for left colon perforation were compared for a period of 40 months (March 2014–June 2017) with a control group of patients treated with conventional care (CC group) during the 38 months prior to implementation of the new ERAS protocol (January 2011–February 2014). The main endpoint was 90-day postoperative morbidity according to the Clavien–Dindo classification. Secondary endpoints included length of postoperative hospital stay, 90-day readmission rate, protocol compliance and mortality. Fifty patients were included in the study, 29 in the ERAS group and 21 in the CC group. There were no significant differences between the groups in the demographic data or in the operative characteristics. A reduction in the incidence of postoperative complications (20.7% vs. 38%; p > 0.05) and in the postoperative hospital stay (7.7 + /- 3.85 vs. 10.9 + /- 5.6 days; p = 0.009) were observed in the ERAS group. The 90-day readmission rate did not differ significantly between the two groups (2 vs. 1). No 90-day mortality was observed in either group. The ERAS group showed better results than the CC group in protocol compliance. We conclude that ERAS protocols are feasible and help to reduce morbidity and length of hospital stay without adversely affecting the rate of readmission or mortality.
- Published
- 2020
45. Quantitative Evaluation by Glucose Diffusion of Microleakage in Aged Calcium Silicate-Based Open-Sandwich Restorations
- Author
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S. Koubi, H. Elmerini, G. Koubi, H. Tassery, and J. Camps
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Dentistry ,RK1-715 - Abstract
This study compared the in vitro marginal integrity of open-sandwich restorations based on aged calcium silicate cement versus resin-modified glass ionomer cement. Class II cavities were prepared on 30 extracted human third molars. These teeth were randomly assigned to two groups (𝑛=10) to compare a new hydraulic calcium silicate cement designed for restorative dentistry (Biodentine, Septodont, Saint Maur des Fossés, France) with a resin-modified glass ionomer cement (Ionolux, Voco, Cuxhaven, Germany) in open-sandwich restorations covered with a light-cured composite. Positive (𝑛=5) and negative (𝑛=5) controls were included. The teeth simultaneously underwent thermocycling and mechanocycling using a fatigue cycling machine (1,440 cycles, 5–55°C; 86,400 cycles, 50 N/cm2). The specimens were then stored in phosphate-buffered saline to simulate aging. After 1 year, the teeth were submitted to glucose diffusion, and the resulting data were analyzed with a nonparametric Mann-Whitney test. The Biodentine group and the Ionolux group presented glucose concentrations of 0.074 ± 0.035 g/L and 0.080 ± 0.032 g/L, respectively. No statistically significant differences were detected between the two groups. Therefore, the calcium silicate-based material performs as well as the resin-modified glass ionomer cement in open-sandwich restorations.
- Published
- 2012
- Full Text
- View/download PDF
46. PO-1103: The Energy Metabolism Changes In Rectal Cancer Patients After Neoadjuvant Radiochemotherapy
- Author
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J. Camps, J. Joven, E. Rodríguez, G. Baiges, M. A. Arenas, Y. López, J. Trilla, L. Torres, A. Hernández, J. Gomez, J. Acosta, and A. Moreno
- Subjects
medicine.medical_specialty ,Oncology ,business.industry ,Colorectal cancer ,Internal medicine ,medicine ,Energy metabolism ,Radiology, Nuclear Medicine and imaging ,Hematology ,business ,medicine.disease ,Gastroenterology - Published
- 2020
47. In Vitro Aberrometric Assessment of a Multifocal Intraocular Lens and Two Extended Depth of Focus IOLs
- Author
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Angel Tolosa, David P. Piñero, María Teresa Caballero Caballero, Juan Jose Miret, Vicente J. Camps, Dolores de Fez, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, Grupo de Óptica y Percepción Visual (GOPV), and Óptica y Ciencias de la Visión
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medicine.medical_specialty ,Article Subject ,In vitro aberrometric ,medicine.medical_treatment ,Intraocular lens ,01 natural sciences ,Pupil ,010309 optics ,03 medical and health sciences ,Focus IOLs ,0302 clinical medicine ,lcsh:Ophthalmology ,Ophthalmology ,0103 physical sciences ,Medicine ,Refractive IOL ,Óptica ,Extended depth of focus ,business.industry ,Wavefront sensor ,Presbyopia ,Multifocal intraocular lens ,medicine.disease ,lcsh:RE1-994 ,030221 ophthalmology & optometry ,business ,Research Article - Abstract
Purpose. To analyze the “in vitro” aberrometric pattern of a refractive IOL and two extended depth of focus IOLs.Methods. A special optical bench with a Shack-Hartmann wavefront sensor (SH) was designed for the measurement. Three presbyopia correction IOLs were analyzed: Mini WELL (MW), TECNIS Symfony ZXR00 (SYM), and Lentis Mplus X LS-313 MF30 (MP). Three different pupil sizes were used for the comparison: 3, 4, and 4.7 mm.Results. MW generated negative primary and positive secondary spherical aberrations (SA) for the apertures of 3 mm (−0.13 and +0.12 μm), 4 mm (−0.12 and +0.08 μm), and 4.7 mm (−0.11 and +0.08 μm), while the SYM only generated negative primary SA for 4 and 4.7 mm apertures (−0.12 μm and −0.20 μm, resp.). The MP induced coma and trefoil for all pupils and showed significant HOAs for apertures of 4 and 4.7 mm.Conclusions.In an optical bench, the MW induces negative primary and positive secondary SA for all pupils. The SYM aberrations seem to be pupil dependent; it does not produce negative primary SA for 3 mm but increases for higher pupils. Meanwhile, the HOAs for the MW and SYM were not significant. The MP showed in all cases the highest HOAs.
- Published
- 2017
48. Diverticulitis yeyunal perforada, a propósito de un caso
- Author
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L. Vega, J. Camps, and D. Carmona
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Gastroenterology - Published
- 2019
49. Regarding a case of perforated jejunal diverticulitis
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L. Vega, D. Carmona, and J. Camps
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medicine.medical_specialty ,Text mining ,business.industry ,General surgery ,Medicine ,General Medicine ,Diverticulitis ,business ,medicine.disease - Published
- 2019
50. Validation of posterior corneal curvature measurements with color light-emitting diode topography
- Author
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Vicent J. Camps, María Teresa Caballero Caballero, Celia García, Dolores de Fez, David P. Piñero, Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía, and Grupo de Óptica y Percepción Visual (GOPV)
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Adult ,Male ,Materials science ,Adolescent ,Astigmatism ,Posterior corneal astigmatism ,law.invention ,Cornea ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Optics ,law ,medicine ,Humans ,Prospective Studies ,Pentacam ,Diode ,Óptica ,Aged ,Corneal curvature ,medicine.diagnostic_test ,business.industry ,Corneal Topography ,Reproducibility of Results ,General Medicine ,Repeatability ,Color light-emitting diode reflection topography ,Equipment Design ,Middle Aged ,Corneal topography ,medicine.disease ,Ophthalmology ,030221 ophthalmology & optometry ,Reflection (physics) ,Cassini ,Female ,Posterior corneal curvature ,business ,030217 neurology & neurosurgery ,Light-emitting diode - Abstract
Purpose: To evaluate the intrasession repeatability and validity of posterior corneal curvature and astigmatism measurements provided by a color light-emitting diode reflection topography system in healthy eyes. Methods: A total of 40 healthy eyes of 40 patients (age, 16–66 years) were enrolled. A complete eye examination was performed in all cases including posterior topographic analysis with two systems: the Scheimpflug-based system (Pentacam; Oculus Optikgeräte GmbH, Wetzlar, Germany) and the Cassini system (i-Optics; Ophthec, The Hague, The Netherlands). With this last system, three consecutive measurements were taken to assess the level of intrasession repeatability (within-subject standard deviation, Sw; intraclass correlation coefficient). The Bland & Altman analysis was used to evaluate the interchangeability of both devices. Results: The Sw was ⩽0.06 mm for all posterior corneal radius measurements, with intraclass correlation coefficient of ⩾0.960. The Sw for the magnitude of astigmatism, J0, and J45 were 0.15, 0.04, and 0.04 D, respectively, with intraclass correlation coefficient values of 0.876, 0.897, and 0.840, respectively. Statistically significant differences between devices were found in all parameters evaluated (p ⩽ 0.025). The interchangeability analysis revealed the presence of clinically relevant limits of agreement for the flattest (0.03 to 0.50 mm) and steepest posterior corneal radii (–0.01 to 0.39 mm). In contrast, limits of agreements were not clinically relevant for the magnitude of posterior astigmatism (–0.17 to 0.27 D) and their power vector components (–0.11 to 0.15 D). Conclusion: The Cassini system provides consistent measures of posterior corneal curvature and astigmatism in healthy eyes, but only measures of posterior astigmatism can be considered as interchangeable with those provided by the Pentacam.
- Published
- 2019
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