نتایج جستجو برای: wavelength automated perimetry

تعداد نتایج: 194549  

Journal: :JAMA ophthalmology 2014
Shu Liu Marco Yu Robert N Weinreb Gilda Lai Dennis Shun-Chiu Lam Christopher Kai-Shun Leung

IMPORTANCE While standard automated perimetry (SAP) remains the reference standard for evaluation of visual field (VF) defects in glaucoma, this study demonstrates that frequency-doubling technology (FDT) perimetry is effective in monitoring visual field progression and may detect the onset of visual field defects earlier than SAP. OBJECTIVES To compare detection of the development of VF defe...

2017
Ian C. Murray Antonios Perperidis Lorraine A. Cameron Alice D. McTrusty Harry M. Brash Andrew J. Tatham Pankaj K. Agarwal Brian W. Fleck Robert A. Minns

PURPOSE We evaluated threshold saccadic vector optokinetic perimetry (SVOP) and compared results to standard automated perimetry (SAP). METHODS A cross-sectional study was done including 162 subjects (103 with glaucoma and 59 healthy subjects) recruited at a university hospital. All subjects underwent SAP and threshold SVOP. SVOP uses an eye tracker to monitor eye movement responses to stimul...

Journal: :Optometry and vision science : official publication of the American Academy of Optometry 2011
Peter Davison Mukunda Akkali James Loughman Grainne Scanlon John Nolan Stephen Beatty

PURPOSE Macular pigment (MP) acts as a prereceptoral filter which selectively absorbs short wavelengths. It has the potential to alter color vision but the literature is conflicting on whether it does and, if so, to what extent, possibly reflecting differences between color mechanisms and color tests. This study was designed to identify and investigate relationships, if any, between MP optical ...

Journal: :Graefes Archive for Clinical and Experimental Ophthalmology 2021

To evaluate the efficacy and safety profile of Kahook Dual Blade ab interno trabeculectomy combined with phacoemulsification compared to stand-alone conventional cataract surgery. A single-center longitudinal, randomized controlled trial was conducted. Patients older than 18 years coexisting open-angle glaucoma or ocular hypertension were invited participate. Preoperative postoperative clinical...

Journal: :Arquivos brasileiros de oftalmologia 2007
José Garone Gonçalves Lopes Filho Alberto Jorge Betinjane Celso Antônio de Carvalho

PURPOSE To identify and characterize defects using the automated perimetry test in patients with primary congenital glaucoma. METHODS Automated visual fields and charts of 81 eyes (48 patients) with congenital glaucoma were retrospectively analyzed, 15 being normal eyes (group N) and 66 eyes with primary congenital glaucoma (group G). Eyes of group G were grouped in eyes without perimetric ch...

2013
Mitchell W Dul

Perimetric testing is used clinically to detect visual field abnormalities and to monitor changes during the course of management. Conventional automated perimetry (CAP), which employs small (0.43 degree) targets (Fig. 1), is hampered by high test-retest variability. Consequently, many tests are required in order to determine whether a patient is stable or progressing. Decreasing test-retest va...

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