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Your search keyword '"Toco YP Chui"' showing total 3 results
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3 results on '"Toco YP Chui"'

1. 3-D OCT angiographic evidence of Anti-VEGF therapeutic effects on retinal capillary hemangioma

Author

Oscar Otero-Marquez, Toco YP. Chui, Alexander Pinhas, Maria V. Castanos Toral, Davis B. Zhou, Justin Migacz, and Richard B. Rosen

Subjects
Retinal capillary hemangioma, Optical coherence tomography angiography, Anti-VEGF, Von Hippel-Lindau disease, Ophthalmology, RE1-994
Abstract

Purpose: To report the impact of intravitreal anti–vascular endothelial growth factor (VEGF) therapy on a retinal capillary hemangioma (RCH) using clinical OCT angiography (OCT-A) in addition to standard imaging modalities. Observations: A 25-year-old male patient with Von Hippel-Lindau (VHL) disease presented with a history of bilateral RCH. No view was present in the right eye. Examination of the left eye revealed six peripheral RCH, the smallest of which was temporal to the macula with active exudation. This RCH was thought to be the source of cystoid macular edema (CME) involving the fovea, and therefore, the source of vision decline. 11 injections of 1.25mg of Bevacizumab EA across 14-month was given. Comparison of the pre- and post-treatment OCT-A at the temporal RCH showed a reduction of CME and regression of RCH. Conclusion: Anti-VEGF therapy appeared to stabilize the visual acuity and produce partial regression of RCH. It offers a safe option when visual acuity is threatened. OCT and OCT-A have the ability to document the impact of antiangiogenic therapy on RCH. 3D renderings of OCT-A offer enhanced sensitivity to recognition of structural and functional changes of RCH which may prove useful for monitoring treatment response.

Published
2022
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2. Imaging vitreous cortex hyalocyte response to paracentral acute middle maculopathy (PAMM) using

Author

Oscar, Otero-Marquez, Sofia, Ahsanuddin, Lily, Spellman, Alexander, Pinhas, Toco Yp, Chui, and Richard B, Rosen

Abstract

Vitreous cortex hyalocytes (VCH) are resident macrophage cells that provide immunosurveillance, respond to tissue injury and inflammation, and help maintain the transparency of the media. In this case report we demonstrate the use ofA 38-year-old female with no known medical history presented with complaints of visual disturbances in the right eye. OCT revealed hyperreflective bands in the IPL and INL nasal to the fovea. A diagnosis of PAMM was made. Work-up revealed elevated titers of antiphospholipid antibodies.Our findings suggest that monitoring changes in the distribution and morphology of VCH could have a potential clinical utility for assessing disease severity, predicting recovery, and early recognition of treatment response in various inflammatory ocular pathologies such as PAMM.

Published
2022

3. A Pilot Study of Subclinical Non-Capillary Peripapillary Perfusion Changes in Thyroid-Related Orbitopathy Detected Using Optical Coherence Tomography Angiography

Author

Alexander Pinhas, Jorge S Andrade Romo, Giselle Lynch, Davis B Zhou, Maria V Castanos Toral, Phillip A Tenzel, Oscar Otero-Marquez, Shoshana Yakubova, Alexander Barash, David Della Rocca, Robert Della Rocca, Toco YP Chui, Richard B Rosen, and Harsha S Reddy

Subjects
Ophthalmology, Clinical Ophthalmology, sense organs
Abstract

Alexander Pinhas,1,2 Jorge S Andrade Romo,1 Giselle Lynch,1,3 Davis B Zhou,1,3 Maria V Castanos Toral,1 Phillip A Tenzel,1 Oscar Otero-Marquez,1 Shoshana Yakubova,1,4 Alexander Barash,1 David Della Rocca,1 Robert Della Rocca,1 Toco YP Chui,1 Richard B Rosen,1 Harsha S Reddy1 1Department of Ophthalmology, New York Eye and Ear Infirmary of Mount Sinai, New York, NY, USA; 2Department of Ophthalmology, State University of New York Downstate Medical Center, Brooklyn, NY, USA; 3Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; 4Department of Biology, Macaulay Honors College at City University of New York Queens College, Flushing, NY, USACorrespondence: Harsha S Reddy, Department of Ophthalmology, New York Eye and Ear Infirmary of Mount Sinai, 310 E 14th St, New York, NY, 10003, USA, Tel +1 212-979-4284, Fax +1 212-966-6295, Email hreddy@nyee.eduPurpose: Hemodynamic changes surrounding the optic nerve head are known to occur in thyroid-related orbitopathy (TRO). This pilot study explores the capillary and non-capillary peripapillary perfusion changes of the retina in TRO eyes without dysthyroid optic neuropathy (DON) using optical coherence tomography angiography (OCT-A).Methods: Non-capillary and capillary peripapillary perfusion densities were calculated using single 4.5 × 4.5mm en face “RPC layer” OCT-A scans of 8 TRO patients without DON (8 eyes, mean age 40.6 years, range 23– 69 years). Results were compared to a previously published dataset of 133 healthy controls (133 eyes, mean 41.5 years, range 11– 83 years). The strength of association was measured between OCT-A perfusion densities and clinical measures of TRO.Results: Non-capillary peripapillary perfusion density in TRO eyes was found to be significantly decreased compared to healthy controls (TRO group 15.4 ± 2.9% vs controls 21.5 ± 3.1%; p < 0.0001). Capillary peripapillary perfusion densities showed no significant difference (TRO group 42.5 ± 1.8% vs controls 42.5 ± 1.5%; p = 1.0). Clinical measures of disease did not correlate well with OCT-A perfusion densities (p> 0.05).Conclusion: These findings may represent decreased blood flow and subclinical ischemia to the optic nerve. We discuss possible pathogenic mechanisms of thyroid-related vasculopathy, including vessel wall thickening due to immunologically-induced media enlargement.Keywords: thyroid-related orbitopathy, optical coherence tomography angiography, peripapillary microvasculature, thyroid-related vasculopathy

Published
2021

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