نتایج جستجو برای: retinal thickness

تعداد نتایج: 185201  

Journal: :Investigative ophthalmology & visual science 2009
Ilse Krebs Christiane Falkner-Radler Stefan Hagen Paulina Haas Werner Brannath Shilla Lie Siamak Ansari-Shahrezaei Susanne Binder

PURPOSE Automatically generated measurements of the retinal volume or the central retinal thickness are based on correctly set threshold lines on the retinal surface and the retinal pigment epithelium. The purpose of this study was to compare the accuracy of threshold algorithm lines of Stratus optical coherence tomography (OCT) with those of Cirrus OCT. METHODS A consecutive series of patien...

2009
Seenu M Hariprasad Levent Akduman Joseph A Clever Michael Ober Franco M Recchia William F Mieler

PURPOSE To describe the use of nepafenac 0.1% for cystoid macular edema (CME). METHODS This was a multicenter retrospective review of 22 CME cases (20 patients) treated with nepafenac 0.1% (six with concomitant prednisolone acetate 1%) from December 2005 to April 2008: three acute pseudophakic CME cases, 13 chronic/recalcitrant pseudophakic CME cases, and six cases of uveitic CME. Pre- and po...

Journal: :Journal of biomedical optics 2009
Delia Cabrera DeBuc Gábor Márk Somfai Sudarshan Ranganathan Erika Tátrai Mária Ferencz Carmen A Puliafito

We determine the reliability and reproducibility of retinal thickness measurements with a custom-built OCT retinal image analysis software (OCTRIMA). Ten eyes of five healthy subjects undergo repeated standard macular thickness map scan sessions by two experienced examiners using a Stratus OCT device. Automatic/semi automatic thickness quantification of the macula and intraretinal layers is per...

Journal: :Saudi journal of ophthalmology : official journal of the Saudi Ophthalmological Society 2015
Laxmi Gella Rajiv Raman Tarun Sharma

PURPOSE To provide normal macular thickness measurements using Spectral Domain Optical Coherence Tomography (SDOCT, Copernicus, Optopol Technologies, Zawierci, Poland). METHODS Fifty-eight eyes of 58 healthy subjects were included in this prospective study. All subjects had comprehensive ophthalmic examination including best-corrected visual acuity (BCVA). All the subjects underwent Copernicu...

Journal: :Investigative ophthalmology & visual science 2005
Hiroshi Ishikawa Daniel M Stein Gadi Wollstein Siobahn Beaton James G Fujimoto Joel S Schuman

PURPOSE To develop a software algorithm to perform automated segmentation of retinal layer structures on linear macular optical coherence tomography (StratusOCT; Carl Zeiss Meditec, Inc., Dublin, CA) scan images and to test its performance in discriminating normal from glaucomatous eyes in comparison with conventional circumpapillary nerve fiber layer (cpNFL) thickness measurement. METHODS Fo...

2016
Tulika Gupta Jasbir Arora Harsimran Jit Singh Narbada Saini Daisy Sahni

Spectral domain optical coherence tomography (SD-OCT) has become an established diagnostic tool for the clinical assessment of retinal pathology and its progression, in OPD setting. The aim of our study was to do in vitro quantification of relevant retinal layers to collect baseline data at different age groups, against which OCT findings can be interpreted. Thirty eyeballs (20-99 years) were u...

2014
Lee R. Ferguson Sandeep Grover James M. Dominguez II Sankarathi Balaiya Kakarla V. Chalam

BACKGROUND This study determines 'correlation constants' between the gold standard histological measurement of retinal thickness and the newer spectral-domain optical coherence tomography (SD-OCT) technology in adult C57BL/6 mice. METHODS Forty-eight eyes from adult mice underwent SD-OCT imaging and then were histologically prepared for frozen sectioning with H&E staining. Retinal thickness w...

Journal: :International journal of ophthalmology 2011
Lukas Reznicek Marcus Kernt Christos Haritoglou Michael Ulbig Anselm Kampik Aljoscha S Neubauer

AIM To investigate the contribution of fluorescein angiographic leaking microaneurysms (leak-MA) versus non-leaking microaneurysms (non-leak-MA) to retinal thickening in diabetic retinopathy. METHODS A consecutive series of 38 eyes from 24 patients with diabetic retinopathy was included. Leak-MA and non-leak-MA in each eye were selected in pairs at corresponding topographic location. Leaking ...

Journal: :The British journal of ophthalmology 1993
T Kubota J B Jonas G O Naumann

A decreased count of retinal photoreceptors all over the fundus and a loss of retinal pigment epithelium cells mainly in the parapapillary region have been reported to be associated with glaucoma. This study addressed the question whether this cell loss in the deep retinal layers may be connected with a change of the choroidal thickness in glaucomatous eyes. Histological sections of 12 eyes wit...

Journal: :Archives of ophthalmology 2002
Isabel Pires Rui C Bernardes Conceição L Lobo Mário A Soares José G Cunha-Vaz

OBJECTIVE To compare measurements of retinal thickness in eyes with mild nonproliferative retinopathy in patients with type 2 diabetes mellitus using 2 different techniques: the retinal thickness analyzer (RTA) and optical coherence tomography (OCT). METHODS Twenty-eight eyes from 28 patients with type 2 diabetes mellitus and mild nonproliferative retinopathy were classified according to the ...

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