Early detection of glaucoma suspect by pattern electroretinogram
نویسندگان
چکیده
منابع مشابه
Photopic negative response versus pattern electroretinogram in early glaucoma.
PURPOSE Photopic negative response (PhNR) and pattern electroretinogram (PERG) are electrophysiological markers of retinal ganglion cell function; both are reduced in glaucoma. We compared PhNR and PERG in different stages of the disease. METHODS Eleven eyes with preperimetric glaucoma (glaucomatous optic disc with normal field); 18 with manifest glaucoma; and 26 normals were included. We obt...
متن کاملThe multifocal pattern electroretinogram in glaucoma
BACKGROUND The pattern ERG can be used to detect early glaucomatous change, because the response of cells in the inner retina from (typically) 20 degrees -40 degrees of area is reduced before perimetric abnormality is certain. The multifocal pattern electroretinogram (mfPERG) allows analysis of many local regions within this area. The aim of this study was to investigate whether in patients wit...
متن کاملUpdate on the pattern electroretinogram in glaucoma.
PURPOSE To review the efficacy of the pattern electroretinogram (PERG) in early diagnosis of glaucoma. METHODS Stimulation parameters of check size and temporal frequency are considered. Analyses of various peaks (P50, N95, the N95/P50) and Fourier steady-state are considered. The relation to visual field defects is explored. RESULTS The PERG is markedly alterated in glaucoma. It shows ampl...
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Glaucoma suspect describes a person with one or more risk factors that may lead to glaucoma, but this individual does not have definite glaucomatous optic nerve damage or visual field defect. The number of individuals with eye findings that raise a suspicion of glaucoma, usually elevated intraocular pressure (IOP) or asymmetric optic disk morphology, far exceeds the number of people who have be...
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UNLABELLED PRIMARY OPEN-ANGLE GLAUCOMA SUSPECT PREFERRED PRACTICE PATTERN® GUIDELINES Evidence-based update of the Primary Open-Angle Suspect Glaucoma Preferred Practice Pattern® (PPP) guidelines, describing the diagnosis and management of patients with primary open-angle glaucoma suspect with detailed recommendations for evaluation and treatment options.
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ژورنال
عنوان ژورنال: Journal of the Egyptian Ophthalmological Society
سال: 2019
ISSN: 2090-0686
DOI: 10.4103/ejos.ejos_74_18