Search

Your search keyword '"Zweifel, S."' showing total 177 results
Start Over Author "Zweifel, S."
177 results on '"Zweifel, S."'

1. Ultrasound Biomicroscopy Measurements of the Normal Thickness for the Ciliary Body and the Iris in a Middle East Population

Author

Yousef YA, Mohammad M, AlNawaiseh I, AlJabari R, Toro MD, Gharaibeh A, Rejdak R, Nowomiejska K, Zweifel S, Avitabile T, Rejdak M, and Nazzal R

Subjects
ultrasound biomicroscopy, iris, ciliary body, Ophthalmology, RE1-994
Abstract

Yacoub A Yousef,1 Mona Mohammad,1 Ibrahim AlNawaiseh,1 Reem AlJabari,1 Mario Damiano Toro,2,3 Almutez Gharaibeh,4 Robert Rejdak,5 Katarzyna Nowomiejska,5 Sandrine Zweifel,3 Teresio Avitabile,6 Magdalena Rejdak,6 Rashed Nazzal2 1Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan; 2Faculty of Medical Sciences, Collegium Medicum, Cardinal Stefan Wyszyński University, Warsaw, Poland; 3Department of Ophthalmology, University of Zürich, Zürich, Switzerland; 4School of Medicine, The University of Jordan, Amman, Jordan; 5Department of General Ophthalmology, Medical University of Lublin, Lublin, Poland; 6Department of Ophthalmology, University of Catania, Catania, ItalyCorrespondence: Yacoub A YousefDepartment of Surgery (Ophthalmology), King Hussein Cancer Centre, Queen Rania St, Amman, 11941, JordanTel +96265355000Email yyousef@khcc.joMario Damiano ToroDepartment of Ophthalmology, University Hospital of Zürich, Raemistrasse 100, Zürich, 8091, SwitzerlandTel +39 3495158220Email toro.mario@email.itPurpose: Ciliary body (CB) and iris thicknesses may change with certain eye diseases as well as between different populations. Here, we report Ultrasound Biomicroscopy Measurements (UBM) of the normal thickness for the CB and the iris from a homogenous population in the Middle East.Patients and Methods: Sonomed 35-MHz (SONOMED, INC. New York, USA) images were obtained at 4 radial meridians, and the thickness was measured at 3 locations along the radial length of the iris and at the thickest part of the CB. Parameters included mean thickness, median thickness, range, and standard deviation.Results: Of 46 adult patients, 83 normal eyes were included in this analysis. The overall mean, median iris thicknesses at the iris root, midway along the radial length of the iris, and at the juxtapupillary margin in mm were 0.42, 0.41 ± 0.08, 0.52, 0.51± 0.08, and 0.72, 0.71± 0.1, respectively. The overall mean, median thicknesses of the CB and CB + ciliary processes in mm were 0.72, 0.71 ± 0.1, and 1.42, 1.37 ± 0.2 respectively. Gender, age, side, and height had no impact on iris and/or CB thickness (p> 0.05). However, the iris thickness was significantly thicker in the superior quadrant than inferiorly, and in the nasal quadrant than the temporal quadrant (p=0.04), and the CB thickness and the CB + ciliary processes thickness were significantly thicker in the superior quadrant than inferiorly (P = 0.04 and 0.02 consecutively).Conclusion: We measured in this study the normal thickness of the CB and the iris in normal eyes from homogenous population in the Middle East using ultrasound biomicroscopy. Our findings are essential for the ophthalmic community worldwide and in the Middle East region and can be used as a normative thickness data for the iris and CB in healthy eyes.Keywords: ultrasound biomicroscopy, iris, ciliary body

Published
2022

2. Delayed Intravitreal Anti-VEGF Therapy for Patients During the COVID-19 Lockdown: An Ethical Endeavor

Author

Elfalah M, AlRyalat SA, Toro MD, Rejdak R, Zweifel S, Nazzal R, Abu-Ameerh M, Ababneh O, Gharaibeh A, Sharif Z, Meqbil J, AlShawabkeh M, Alwreikat A, Al Bdour M, Al-Hussaini M, and Yousef YA

Subjects
covid-19 lockdown, covid-19 pandemic, ethics, intravitreal injection, macular edema., Ophthalmology, RE1-994
Abstract

Mutasem Elfalah,1 Saif Aldeen AlRyalat,1 Mario Damiano Toro,2– 4 Robert Rejdak,4 Sandrine Zweifel,3 Rashed Nazzal,5 Mohammed Abu-Ameerh,1 Osama Ababneh,1 Almutez Gharaibeh,1 Zuhair Sharif,1 Jehad Meqbil,1 Mo’ath AlShawabkeh,1 Amal Alwreikat,6 Muawyah Al Bdour,1 Maysa Al-Hussaini,7 Yacoub A Yousef8 1Department of Special Surgery, Faculty of Medicine, The University of Jordan, Amman, Jordan; 2Faculty of Medical Sciences, Collegium Medicum, Cardinal Stefan Wyszyński University, Warsaw, Poland; 3Department of Ophthalmology, University Hospital of Zürich, Zürich, Switzerland; 4Department of General Ophthalmology, Medical University of Lublin, Lublin, Poland; 5Shami Eye Center, Amman, Jordan; 6Department of Ophthalmology, Royal Medical Services, Amman, Jordan; 7Department of Pathology and Laboratory Medicine, King Hussein Cancer Center, Amman, Jordan; 8Department of Surgery (Ophthalmology), King Hussein Cancer Center, Amman, JordanCorrespondence: Mutasem ElfalahDepartment of Special Surgery, Faculty of Medicine, The University of Jordan, Queen Rania St, Amman, 11941, JordanTel +96265355000Email mutasemrabie@hotmail.comMario Damiano ToroDepartment of Ophthalmology, University Hospital of Zürich, Raemistrasse 100, Zürich, 8091, SwitzerlandTel +39 3495158220Email toro.mario@email.itPurpose: To assess the impact of Jordanian’s Corona Virus Disease (COVID-19) lockdown on visual acuity and macular thickness in patients with macular edema receiving intravitreal injections, and to assess the ethical endeavor of lockdown among serious sight threatening conditions.Patients and Methods: This retrospective observational study included patients planned for intravitreal injections who did not complete the planned course before the lockdown (ie, before 20th of March 2020). Data included demographics, indication for the intravitreal injection, corrected distance visual acuity (CDVA), and central macular thickness on Optical Coherence Tomography (OCT) before and after the lockdown.Results: One-hundred and sixty-six eyes of 125 patients were studied, 68 (54.4%) patients were males, and the mean (± standard deviation, SD) age was 64.79 (± 9.41) years. Mean (±SD) duration of delay in the planned injection was 60.97 (± 24.35) days. The change in visual acuity was statistically significant for patients with diabetic macular edema (p= 0.045 improvement), patients with central retinal vein thrombosis (CRVO) (p= 0.05 deterioration), and patients with age-related macular degeneration (AMD) (p= 0.005 deterioration). Of interest, delay of more than 2 months and the previous need for 3 or more injections were significant poor prognostic factors for visual outcome for patients with diabetic macular edema (p=0.027 and 0.045).Conclusion: The impact of delay in the scheduled intravitreal injections resulted in variable outcomes depending on the indication. Triaging the urgency of patients should be based on the indication to support the equity principle of bioethics, where those in need are prioritized against others, depending on potential adverse outcome.Keywords: COVID-19 lockdown, COVID-19 pandemic, ethics, intravitreal injection, macular edema

Published
2021

3. International Society of Cardiovascular Infectious Diseases Guidelines for the Diagnosis, Treatment and Prevention of Disseminated Mycobacterium chimaera Infection Following Cardiac Surgery with Cardiopulmonary Bypass

Author

Baddour, L.M., Diekema, D., Fernández-Hidalgo, N., Gordon, S., Hasse, B., Lundgren, J., Manfrin, V., Nomura, J., Scriven, J., Stewart, R., Wagner, D., Tang, T.H.-C., Herwaldt, L.A., Mertz, D., Sax, H., Schreiber, P., Sommerstein, R., Stewardson, A., Whitener, C.J., Widmer, A., Brown Elliot, B.A., Daley, C., Freiberger, T., van Ingen, J., Keller, P., Kohl, T.A., Maurer, F., Niemann, S., Wallace, R.J., Jr., Falk, V., Halbe, M., Mestres, C.A., Zweifel, S., Bettex, D., Hernandez Conte, A., Chand, M., Jarashow, M.C., Lamagni, T., Plachouras, D., Perkins, K.M., Hannan, M.M., Keller, P.M., Maurer, F.P., Durante-Mangoni, E., Stuart, R.L., Schreiber, P.W., Daley, C.L., Stewardson, A.J., Perkins, K., Sander, P., Schulthess, B., Scriven, J.E., Brown-Elliott, B.A., Miro, J.M., Hoen, B., Athan, E., Bayer, A., Barsic, B., Corey, G.R., Chu, V.H., Durack, D.T., Fortes, C.Q., Fowler, V., Krachmer, A.W., Durante-Magnoni, E., and Wilson, W.R.

Published
2020
Full Text
View/download PDF

7. International Society of Cardiovascular Infectious Diseases Guidelines for the Diagnosis, Treatment and Prevention of Disseminated Mycobacterium chimaera Infection Following Cardiac Surgery with Cardiopulmonary Bypass.

Author

Sander P., Chu V.H., Durack D.T., Fortes C.Q., Fowler V., Krachmer A.W., Wilson W.R., Stewart R., Herwaldt L.A., Widmer A., Brown Elliot B.A., Falk V., Halbe M., Scriven J.E., Sax H., van Ingen J., Mestres C.A., Diekema D., Brown-Elliott B.A., Wallace R.J., Baddour L.M., Miro J.M., Hoen B., Athan E., Bayer A., Barsic B., Stuart R.L., Hasse B., Hannan M.M., Keller P.M., Maurer F.P., Sommerstein R., Mertz D., Wagner D., Fernandez-Hidalgo N., Nomura J., Manfrin V., Bettex D., Hernandez Conte A., Durante-Mangoni E., Tang T.H.-C., Lundgren J., Gordon S., Jarashow M.C., Schreiber P.W., Niemann S., Kohl T.A., Daley C.L., Stewardson A.J., Whitener C.J., Perkins K., Plachouras D., Lamagni T., Chand M., Freiberger T., Zweifel S., Corey G.R., Schulthess B., Sander P., Chu V.H., Durack D.T., Fortes C.Q., Fowler V., Krachmer A.W., Wilson W.R., Stewart R., Herwaldt L.A., Widmer A., Brown Elliot B.A., Falk V., Halbe M., Scriven J.E., Sax H., van Ingen J., Mestres C.A., Diekema D., Brown-Elliott B.A., Wallace R.J., Baddour L.M., Miro J.M., Hoen B., Athan E., Bayer A., Barsic B., Stuart R.L., Hasse B., Hannan M.M., Keller P.M., Maurer F.P., Sommerstein R., Mertz D., Wagner D., Fernandez-Hidalgo N., Nomura J., Manfrin V., Bettex D., Hernandez Conte A., Durante-Mangoni E., Tang T.H.-C., Lundgren J., Gordon S., Jarashow M.C., Schreiber P.W., Niemann S., Kohl T.A., Daley C.L., Stewardson A.J., Whitener C.J., Perkins K., Plachouras D., Lamagni T., Chand M., Freiberger T., Zweifel S., Corey G.R., and Schulthess B.

Abstract

Mycobacterial infection-related morbidity and mortality in patients following cardiopulmonary bypass surgery is high and there is a growing need for a consensus-based expert opinion to provide international guidance for diagnosing, preventing and treating in these patients. In this document the International Society for Cardiovascular Infectious Diseases (ISCVID) covers aspects of prevention (field of hospital epidemiology), clinical management (infectious disease specialists, cardiac surgeons, ophthalmologists, others), laboratory diagnostics (microbiologists, molecular diagnostics), device management (perfusionists, cardiac surgeons) and public health aspects.Copyright © 2019 The Author(s)

Published
2020

8. International Society of Cardiovascular Infectious Diseases Guidelines for the Diagnosis, Treatment and Prevention of Disseminated Mycobacterium chimaera Infection Following Cardiac Surgery with Cardiopulmonary Bypass

Author

Hasse, B, Hannan, MM, Keller, PM, Maurer, FP, Sommerstein, R, Mertz, D, Wagner, D, Fernandez-Hidalgo, N, Nomura, J, Manfrin, V, Bettex, D, Conte, AH, Durante-Mangoni, E, Tang, TH-C, Stuart, RL, Lundgren, J, Gordon, S, Jarashow, MC, Schreiber, PW, Niemann, S, Kohl, TA, Daley, CL, Stewardson, AJ, Whitener, CJ, Perkins, K, Plachouras, D, Lamagni, T, Chand, M, Freiberger, T, Zweifel, S, Sander, P, Schulthess, B, Scriven, JE, Sax, H, van Ingen, J, Mestres, CA, Diekema, D, Brown-Elliott, BA, Wallace, RJ, Baddour, LM, Miro, JM, Hoen, B, Athan, E, Bayer, A, Barsic, B, Corey, GR, Chu, VH, Durack, DT, Querido Fortes, C, Fowler, V, Krachmer, AW, Durante-Magnoni, E, Miro, M, Wilson, WR, Striven, J, Stewart, R, Herwaldt, LA, Schreiber, P, Stewardson, A, Widmer, A, Elliot, BAB, Daley, C, Keller, P, Maurer, F, Falk, V, Halbe, M, Perkins, KM, Hasse, B, Hannan, MM, Keller, PM, Maurer, FP, Sommerstein, R, Mertz, D, Wagner, D, Fernandez-Hidalgo, N, Nomura, J, Manfrin, V, Bettex, D, Conte, AH, Durante-Mangoni, E, Tang, TH-C, Stuart, RL, Lundgren, J, Gordon, S, Jarashow, MC, Schreiber, PW, Niemann, S, Kohl, TA, Daley, CL, Stewardson, AJ, Whitener, CJ, Perkins, K, Plachouras, D, Lamagni, T, Chand, M, Freiberger, T, Zweifel, S, Sander, P, Schulthess, B, Scriven, JE, Sax, H, van Ingen, J, Mestres, CA, Diekema, D, Brown-Elliott, BA, Wallace, RJ, Baddour, LM, Miro, JM, Hoen, B, Athan, E, Bayer, A, Barsic, B, Corey, GR, Chu, VH, Durack, DT, Querido Fortes, C, Fowler, V, Krachmer, AW, Durante-Magnoni, E, Miro, M, Wilson, WR, Striven, J, Stewart, R, Herwaldt, LA, Schreiber, P, Stewardson, A, Widmer, A, Elliot, BAB, Daley, C, Keller, P, Maurer, F, Falk, V, Halbe, M, and Perkins, KM

Abstract

Mycobacterial infection-related morbidity and mortality in patients following cardiopulmonary bypass surgery is high and there is a growing need for a consensus-based expert opinion to provide international guidance for diagnosing, preventing and treating in these patients. In this document the International Society for Cardiovascular Infectious Diseases (ISCVID) covers aspects of prevention (field of hospital epidemiology), clinical management (infectious disease specialists, cardiac surgeons, ophthalmologists, others), laboratory diagnostics (microbiologists, molecular diagnostics), device management (perfusionists, cardiac surgeons) and public health aspects.

Published
2020

9. International Society of Cardiovascular Infectious Diseases Guidelines for the Diagnosis, Treatment and Prevention of Disseminated Mycobacterium chimaera Infection Following Cardiac Surgery with Cardiopulmonary Bypass

Author

Hasse, B., Hannan, M. M., Keller, P. M., Maurer, F. P., Sommerstein, R., Mertz, D., Wagner, D., Fernández-Hidalgo, N., Nomura, J., Manfrin, V., Bettex, D., Hernandez Conte, A., Durante-Mangoni, E., Tang, T. H.C., Stuart, R. L., Lundgren, J., Gordon, S., Jarashow, M. C., Schreiber, P. W., Niemann, S., Kohl, T. A., Daley, C. L., Stewardson, A. J., Whitener, C. J., Perkins, K., Plachouras, D., Lamagni, T., Chand, M., Freiberger, T., Zweifel, S., Sander, P., Schulthess, B., Scriven, J. E., Sax, H., van Ingen, J., Mestres, C. A., Diekema, D., Brown-Elliott, B. A., Wallace, R. J., Baddour, L. M., Miro, J. M., Hoen, B., Hasse, B., Hannan, M. M., Keller, P. M., Maurer, F. P., Sommerstein, R., Mertz, D., Wagner, D., Fernández-Hidalgo, N., Nomura, J., Manfrin, V., Bettex, D., Hernandez Conte, A., Durante-Mangoni, E., Tang, T. H.C., Stuart, R. L., Lundgren, J., Gordon, S., Jarashow, M. C., Schreiber, P. W., Niemann, S., Kohl, T. A., Daley, C. L., Stewardson, A. J., Whitener, C. J., Perkins, K., Plachouras, D., Lamagni, T., Chand, M., Freiberger, T., Zweifel, S., Sander, P., Schulthess, B., Scriven, J. E., Sax, H., van Ingen, J., Mestres, C. A., Diekema, D., Brown-Elliott, B. A., Wallace, R. J., Baddour, L. M., Miro, J. M., and Hoen, B.

Abstract

Mycobacterial infection-related morbidity and mortality in patients following cardiopulmonary bypass surgery is high and there is a growing need for a consensus-based expert opinion to provide international guidance for diagnosing, preventing and treating in these patients. In this document the International Society for Cardiovascular Infectious Diseases (ISCVID) covers aspects of prevention (field of hospital epidemiology), clinical management (infectious disease specialists, cardiac surgeons, ophthalmologists, others), laboratory diagnostics (microbiologists, molecular diagnostics), device management (perfusionists, cardiac surgeons) and public health aspects.

Published
2020

11. International Society of Cardiovascular Infectious Diseases Guidelines for the Diagnosis, Treatment and Prevention of Disseminated Mycobacterium chimaera Infection Following Cardiac Surgery with Cardiopulmonary Bypass

Author

Hasse, B., primary, Hannan, M.M., additional, Keller, P.M., additional, Maurer, F.P., additional, Sommerstein, R., additional, Mertz, D., additional, Wagner, D., additional, Fernández-Hidalgo, N., additional, Nomura, J., additional, Manfrin, V., additional, Bettex, D., additional, Hernandez Conte, A., additional, Durante-Mangoni, E., additional, Tang, T.H.-C., additional, Stuart, R.L., additional, Lundgren, J., additional, Gordon, S., additional, Jarashow, M.C., additional, Schreiber, P.W., additional, Niemann, S., additional, Kohl, T.A., additional, Daley, C.L., additional, Stewardson, A.J., additional, Whitener, C.J., additional, Perkins, K., additional, Plachouras, D., additional, Lamagni, T., additional, Chand, M., additional, Freiberger, T., additional, Zweifel, S., additional, Sander, P., additional, Schulthess, B., additional, Scriven, J.E., additional, Sax, H., additional, van Ingen, J., additional, Mestres, C.A., additional, Diekema, D., additional, Brown-Elliott, B.A., additional, Wallace, R.J., additional, Baddour, L.M., additional, Miro, J.M., additional, Hoen, B., additional, Athan, E., additional, Bayer, A., additional, Barsic, B., additional, Corey, G.R., additional, Chu, V.H., additional, Durack, D.T., additional, Fortes, C.Q., additional, Fowler, V., additional, Krachmer, A.W., additional, Durante-Magnoni, E., additional, Wilson, W.R., additional, Hasse, B., additional, Scriven, J., additional, Stewart, R., additional, Herwaldt, L.A., additional, Schreiber, P., additional, Stewardson, A., additional, Widmer, A., additional, Brown Elliot, B.A., additional, Daley, C., additional, Keller, P., additional, Maurer, F., additional, Falk, V., additional, Halbe, M., additional, and Perkins, K.M., additional

Published
2020
Full Text
View/download PDF

12. A Novel Quantitative Assessment Method of Disease Activity in Susac's Syndrome Based on Ultra-Wide Field Imaging.

Author

Hamann, T., Wiest, M., Innes, W., and Zweifel, S.

Subjects
FLUORESCENCE angiography, OPTICAL coherence tomography, RETINAL blood vessels, QUANTITATIVE research, ANGIOGRAPHY
Abstract

Susac's syndrome (ScS) is a rare, potentially life-threatening auto-immune disease. Ophthalmic imaging can depict characteristic branch retinal arteriolar occlusions (BRAO) and arterial wall hyperfluorescences that form one of the three diagnostic pillars of this condition. We aim to demonstrate that ophthalmological ultrawide-field (UWF) imaging allows for a qualitative and quantitative assessment in ScS, with application in diagnostics, monitoring of treatment response, and titration of therapy. In seven ScS patients (♀:♂ = 2:5), with a median age of 36 years, range 18 to 57 years, serial ultrawide-field fluoresceine angiography (UWF-FA) studies were performed, with adjunctive wide-field optical coherence tomography angiography analyses (WF-OCTA) in five patients. Mean follow-up was 12.5 months, range 1 to 46 months. In all seven patients, BRAO and arterial wall hyperfluorescences were present in UWF-FA and calculated as a quantitative score of disease activity in fluorescein angiography (DA-FA) during follow-up visits. Treatment response was accessible in follow-up imaging as partial reperfusion of retinal vessels, resolution of arterial wall hyperfluorescences and consequently, in reduction of DA-FA score. While qualitative analysis of WF-OCTA provided further information about retinal micro-perfusion, quantitative analysis did not demonstrate a vectored treatment response as it was accessible in FA. DA-FA score, as a comprehensive disease activity parameter in ScS has potential to facilitate optimal communication between subspecialties and thereby treatment success. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

19. Die Maschinenfrau. Ein monströs-astrales Denkbild und seine filmischen Ausformungen

Author

Mettler, Michel, Rogger, Basil, Weber, Peter, Widmer, Ruedi, Zweifel, Stefan, Mettler, M ( Michel ), Rogger, B ( Basil ), Weber, P ( Peter ), Widmer, R ( Ruedi ), Zweifel, S ( Stefan ), Bronfen, Elisabeth, Mettler, Michel, Rogger, Basil, Weber, Peter, Widmer, Ruedi, Zweifel, Stefan, Mettler, M ( Michel ), Rogger, B ( Basil ), Weber, P ( Peter ), Widmer, R ( Ruedi ), Zweifel, S ( Stefan ), and Bronfen, Elisabeth

Published
2016

44. Kontinuierliche Augeninnendruckmessung.

Author

Hediger, A., Kniestedt, C., Zweifel, S., Knecht, P., Funk, J., and Kanngiesser, H.

Abstract

Copyright of Der Ophthalmologe is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2009
Full Text
View/download PDF

47. Artificial intelligence applications and cataract management: A systematic review

Author

Daniele Tognetto, Magdalena Rejdak, Serena Milan, Mario Damiano Toro, Sandrine Zweifel, Rosa Giglio, Katarzyna Załuska-Ogryzek, Alex Lucia Vinciguerra, Robert Rejdak, University of Zurich, Giglio, Rosa, Tognetto, Daniele, Vinciguerra, Alex Lucia, Milan, Serena, Rejdak, Robert, Rejdak, Magdalena, Zaluska-Ogryzek, Katarzyna, Zweifel, Sandrine, Toro, Mario Damiano, Tognetto, D., Giglio, R., Vinciguerra, A. L., Milan, S., Rejdak, R., Rejdak, M., Zaluska-Ogryzek, K., Zweifel, S., and Toro, M. D.

Subjects
10018 Ophthalmology Clinic, medicine.medical_specialty, complications, diagnosis, media_common.quotation_subject, complication, 610 Medicine & health, Cataract, Postoperative management, law.invention, surgery, cataract management, Randomized controlled trial, Artificial Intelligence, law, medicine, artificial intelligence, intraocular lens calculation, Humans, Medical physics, Quality (business), Grading (education), media_common, business.industry, Evidence-based medicine, 2731 Ophthalmology, Quality of evidence, diagnosi, Ophthalmology, Systematic review, Applications of artificial intelligence, business, Human
Abstract

Artificial intelligence (AI)-based applications exhibit the potential to improve the quality and efficiency of patient care in different fields, including cataract management. A systematic review of the different applications of AI-based software on all aspects of a cataract patient's management, from diagnosis to follow-up, was carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. All selected articles were analyzed to assess the level of evidence according to the Oxford Centre for Evidence-Based Medicine 2011 guidelines, and the quality of evidence according to the Grading of Recommendations Assessment, Development and Evaluation system. Of the articles analyzed, 49 met the inclusion criteria. No data synthesis was possible for the heterogeneity of available data and the design of the available studies. The AI-driven diagnosis seemed to be comparable and, in selected cases, to even exceed the accuracy of experienced clinicians in classifying disease, supporting the operating room scheduling, and intraoperative and postoperative management of complications. Considering the heterogeneity of data analyzed, however, further randomized controlled trials to assess the efficacy and safety of AI application in the management of cataract should be highly warranted. (c) 2021 The Authors. Published by Elsevier Inc.

Published
2022
Full Text
View/download PDF

48. Ultrasound Biomicroscopy Measurements of the Normal Thickness for the Ciliary Body and the Iris in a Middle East Population

Author

Yacoub A Yousef, Mona Mohammad, Ibrahim AlNawaiseh, Reem AlJabari, Mario Damiano Toro, Almutez Gharaibeh, Robert Rejdak, Katarzyna Nowomiejska, Sandrine Zweifel, Teresio Avitabile, Magdalena Rejdak, Rashed Nazzal, Yousef, Ya, Mohammad, M, Alnawaiseh, I, Aljabari, R, Toro, Md, Gharaibeh, A, Rejdak, R, Nowomiejska, K, Zweifel, S, Avitabile, T, Rejdak, M, and Nazzal, R

Subjects
Ophthalmology, Iri, ciliary body, Clinical Ophthalmology, RE1-994, ultrasound biomicroscopy, Original Research, iris
Abstract

Yacoub A Yousef,1 Mona Mohammad,1 Ibrahim AlNawaiseh,1 Reem AlJabari,1 Mario Damiano Toro,2,3 Almutez Gharaibeh,4 Robert Rejdak,5 Katarzyna Nowomiejska,5 Sandrine Zweifel,3 Teresio Avitabile,6 Magdalena Rejdak,6 Rashed Nazzal2 1Department of Surgery (Ophthalmology), King Hussein Cancer Centre, Amman, Jordan; 2Faculty of Medical Sciences, Collegium Medicum, Cardinal Stefan Wyszyński University, Warsaw, Poland; 3Department of Ophthalmology, University of Zürich, Zürich, Switzerland; 4School of Medicine, The University of Jordan, Amman, Jordan; 5Department of General Ophthalmology, Medical University of Lublin, Lublin, Poland; 6Department of Ophthalmology, University of Catania, Catania, ItalyCorrespondence: Yacoub A YousefDepartment of Surgery (Ophthalmology), King Hussein Cancer Centre, Queen Rania St, Amman, 11941, JordanTel +96265355000Email yyousef@khcc.joMario Damiano ToroDepartment of Ophthalmology, University Hospital of Zürich, Raemistrasse 100, Zürich, 8091, SwitzerlandTel +39 3495158220Email toro.mario@email.itPurpose: Ciliary body (CB) and iris thicknesses may change with certain eye diseases as well as between different populations. Here, we report Ultrasound Biomicroscopy Measurements (UBM) of the normal thickness for the CB and the iris from a homogenous population in the Middle East.Patients and Methods: Sonomed 35-MHz (SONOMED, INC. New York, USA) images were obtained at 4 radial meridians, and the thickness was measured at 3 locations along the radial length of the iris and at the thickest part of the CB. Parameters included mean thickness, median thickness, range, and standard deviation.Results: Of 46 adult patients, 83 normal eyes were included in this analysis. The overall mean, median iris thicknesses at the iris root, midway along the radial length of the iris, and at the juxtapupillary margin in mm were 0.42, 0.41 ± 0.08, 0.52, 0.51± 0.08, and 0.72, 0.71± 0.1, respectively. The overall mean, median thicknesses of the CB and CB + ciliary processes in mm were 0.72, 0.71 ± 0.1, and 1.42, 1.37 ± 0.2 respectively. Gender, age, side, and height had no impact on iris and/or CB thickness (p> 0.05). However, the iris thickness was significantly thicker in the superior quadrant than inferiorly, and in the nasal quadrant than the temporal quadrant (p=0.04), and the CB thickness and the CB + ciliary processes thickness were significantly thicker in the superior quadrant than inferiorly (P = 0.04 and 0.02 consecutively).Conclusion: We measured in this study the normal thickness of the CB and the iris in normal eyes from homogenous population in the Middle East using ultrasound biomicroscopy. Our findings are essential for the ophthalmic community worldwide and in the Middle East region and can be used as a normative thickness data for the iris and CB in healthy eyes.Keywords: ultrasound biomicroscopy, iris, ciliary body

Published
2022

49. Impact on refractive surgery due to increasing use of personal protection equipment: Insights from EUROCOVCAT group

Author

Isabel Prieto, Ozlem Evren Kemer, Cian Gildea, Robert Rejdak, Sandrine Zweifel, Mario Damiano Toro, Arthur B. Cummings, Daniele Tognetto, Antoine P. Brézin, Miguel A. Teus, Boris Malyugin, Omid Kermani, Cummings, Ab, Gildea, C, Brézin, Ap, Malyugin, Be, Evren Kemer, O, Kermani, O, Prieto, I, Rejdak, R, Teus, Ma, Tognetto, D, Zweifel, S, Toro, Md, University of Zurich, Toro, Mario D, Cummings, Arthur B, Gildea, Cian, Brézin, Antoine P, Malyugin, Boris E, Evren Kemer, Ozlem, Kermani, Omid, Prieto, Isabel, Rejdak, Robert, Teus, Miguel A, Tognetto, Daniele, and Zweifel, Sandrine

Subjects
10018 Ophthalmology Clinic, refractive lens exchange, medicine.medical_treatment, media_common.quotation_subject, COVID-19 pandemic, LASIK, Mask wearing, cataract surgery, fogging spectacles, refractive surgery, Communicable Disease Control, Humans, Pandemics, Personal Protective Equipment, SARS-CoV-2, COVID-19, Refractive Surgical Procedures, 610 Medicine & health, Masking (Electronic Health Record), Hygiene, Refractive surgery, Pandemic, medicine, Personal protective equipment, media_common, Social distance, Editorials, General Medicine, 2731 Ophthalmology, Independence, Ophthalmology, fogging spectacle, Optometry, Psychology, Psychosocial, Human
Abstract

Since the World Health Organization declared COVID-19 to be a pandemic on 11th March 2020, changes to social and sanitary practices have included significant issues in access and management of eye care during the COVID-19 pandemic. Additionally, the fear of loss, coupled with social distancing, lockdown, economic instability, and uncertainty, have led to a significant psychosocial impact that will have to be addressed. In the current COVID-19 pandemic, personal protective equipment such as face masks or face coverings have become a daily necessity. While “mass masking” along with hand hygiene and social distancing became more widespread, new issues began to emerge – particularly in those who wore spectacles as a means of vision correction. As we began to see routine patients again after the first lockdown had been lifted, many patients visited our clinics for refractive surgery consultations with a primary motivating factor of wanting spectacle independence due to the fogging of their spectacles as a result of wearing a mask. In this article, we report on new emerging issues in eye care due to the widespread use of masks and on the new unmet need in the corneal and cataract refractive surgery fields.

Published
2021
Full Text
View/download PDF

50. Assessment of the microvasculature in poppers maculopathy

Author

K B Freund, Maximilian Robert Justus Wiest, Joel Baur, Timothy Hamann, Mario Damiano Toro, M Brinkmann, Katrin Fasler, Sandrine Zweifel, University of Zurich, Zweifel, Sandrine, Hamann, T., Wiest, M. R. J., Brinkmann, M., Toro, M., Fasler, K., Baur, J., Freund, K. B., and Zweifel, S.

Subjects
Male, 10018 Ophthalmology Clinic, medicine.medical_specialty, Capillary plexus, 2804 Cellular and Molecular Neuroscience, 610 Medicine & health, Lesion, Drug toxicity, Macular Degeneration, Cellular and Molecular Neuroscience, chemistry.chemical_compound, 2809 Sensory Systems, Vessel density, Optical coherence tomography, Multimodal imaging, Ophthalmology, Humans, Medicine, Macula Lutea, Fluorescein Angiography, Microvessel, medicine.diagnostic_test, business.industry, Length density, OCT angiography, Retinal Vessels, Retinal, Foveal avascular zone, Middle Aged, medicine.disease, 2731 Ophthalmology, Retinal Vessel, Sensory Systems, chemistry, Retinal toxicity, Microvessels, Poppers maculopathy, Maculopathy, medicine.symptom, business, Tomography, Optical Coherence, Human
Abstract

Purpose To investigate a possible microvascular component of poppers maculopathy (PMP) using optical coherence tomography angiography (OCTA). Methods Twelve patients suffering from poppers maculopathy were included. Health records, optical coherence tomography (OCT), and OCTA data was gathered and compared to a healthy control group (HC). PMP lesion type was determined by manifestation in OCT. OCTA-based evaluation of retinal vascular plexus and choriocapillaris (CC) was executed. Vessel density (VD) and vessel length density (VLD) in superficial and deep capillary plexus (SCP, DCP), as well as flow deficits (FD), within the foveal avascular zone (FAZ) in CC were assessed. Results Median age of PMP patients was 40 (min 24; max 64) years, all male. Eleven patients presented with ellipsoid zone-type lesions; one patient showed a vitelliform-type lesion. No qualitative microvascular changes between PMP patients and HC were identified. Quantitative values for VD and VLD of SCP and DCP did not differ in between the two groups. The analysis of FDs in CC showed no deviation from PMP patients to HC. Conclusions No vascular anomalies in qualitative and quantitative analysis in OCTA were detected in PMP patients. The constitution of the CC within FAZ of PMP patients does not differ from HC when assessed as FD.

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results