نتایج جستجو برای: gdx vcc

تعداد نتایج: 598  

Journal: :Archives of ophthalmology 2004
Felipe A Medeiros Linda M Zangwill Christopher Bowd Robert N Weinreb

OBJECTIVE To compare the abilities of current commercially available versions of 3 optical imaging techniques: scanning laser polarimetry with variable corneal compensation (GDx VCC), confocal scanning laser ophthalmoscopy (HRT II [Heidelberg Retina Tomograph]), and optical coherence tomography (Stratus OCT) to discriminate between healthy eyes and eyes with glaucomatous visual field loss. ME...

Journal: :journal of current ophthalmology 0
رضا زارعی reza zarei رامین دانشور ramin daneshvar محمد سلیمانی mohammad soleimani محمد رزاقی mohammad razzaghi حیدر امینی heidar amini مسعود محمدی masoud mohammadi ساسان مقیمی

purpose : to compare retinal nerve fiber layer (rnfl) profile in subjects with myopia and emmetropia using gdx variable corneal compensator (vcc) methods : besides ophthalmologic standard examination (refraction, visual acuity and slit-lamp examination, applanation tonometry, and funduscopy), perimetry and scanning laser polarimetry (slp) were performed. 171 healthy age-matched subjects with lo...

Journal: :Investigative ophthalmology & visual science 2008
Christopher Kai-shun Leung Carol Yim-lui Cheung Dusheng Lin Chi Pui Pang Dennis S C Lam Robert N Weinreb

PURPOSE To evaluate the longitudinal variability of optic disc and retinal nerve fiber layer (RNFL) measurements obtained from optical coherence tomography (OCT), scanning laser polarimetry (SLP), and confocal scanning laser ophthalmoscopy (CSLO). METHODS Forty-five normal and 43 glaucomatous eyes of 88 subjects were analyzed in this longitudinal study. RNFL thickness was measured by OCT (Sta...

Journal: :The British journal of ophthalmology 2005
M Centofanti F Oddone M Parravano L Gualdi M G Bucci G Manni

AIM To evaluate changes in corneal polarisation properties and their influence on peripapillary retinal nerve fibre layer (RNFL) thickness measurements after laser assisted in situ keratomileusis (LASIK) by means of scanning laser polarimetry (SLP) with variable corneal polarisation compensator (VCC) in normal white subjects. METHODS SLP was performed by means of GDx VCC on 32 eyes of 32 norm...

Journal: :Investigative ophthalmology & visual science 2005
Christopher Bowd Felipe A Medeiros Zuohua Zhang Linda M Zangwill Jiucang Hao Te-Won Lee Terrence J Sejnowski Robert N Weinreb Michael H Goldbaum

PURPOSE To classify healthy and glaucomatous eyes using relevance vector machine (RVM) and support vector machine (SVM) learning classifiers trained on retinal nerve fiber layer (RNFL) thickness measurements obtained by scanning laser polarimetry (SLP). METHODS Seventy-two eyes of 72 healthy control subjects (average age = 64.3 +/- 8.8 years, visual field mean deviation = -0.71 +/- 1.2 dB) an...

2017
Andrea C Kara-José Luiz Alberto S Melo Bruno L B Esporcatte Angelica T N H Endo Mauro Toledo Leite Ivan Maynart Tavares

Our objective was to compare the diagnostic accuracies of and to determine the correlations between the disc damage likelihood scale (DDLS) and anatomical and functional tests used for glaucoma detection. A total of 54 healthy subjects (54 eyes) and 47 primary open-angle glaucoma patients (47 eyes) were included in this cross-sectional observational study. DDLS scores and cup-to-disc (C/D) rati...

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