Relationship between pattern electroretinogram and optic disc morphology in glaucoma
نویسندگان
چکیده
منابع مشابه
Optic disc morphology in pigmentary glaucoma.
AIM To evaluate the morphology of the optic nerve head in eyes with pigmentary glaucoma. METHODS Colour stereo optic disc photographs of 62 patients with pigmentary glaucoma and 566 patients with primary open angle glaucoma were morphometrically evaluated. By prestudy selection, mean visual field defect and neuroretinal rim area were not significantly different between the two groups (p = 0.8...
متن کاملCorrelation between corneal thickness and optic disc morphology in normal tension glaucoma using modern technical analysis.
The purpose of this study was to evaluate the relationship between central corneal thickness (CCT) and optic disc morphology in normal tension glaucoma (NTG). Patients with NTG underwent eye examination, optic disc imaging with Heildelberg Retina Tomograph II (HRT II) and ultrasound corneal pachymetry. The morphological parameters of the optic discs were used to classify the eyes into four grou...
متن کاملOptic disc changes in glaucoma.
Sir William Mackenzie (I835) was the first to describe raised intraocular pressure (IOP) in glaucoma. Following the introduction of the ophthalmoscope, the presence of glaucomatous cupping was soon recognized (Jacobson, I853; Jaeger, I854; von Graefe, 1854; Weber, i 855; and others) and was confirmed histopathologically by Miuller (1856). Mackenzie (i854) described flattened and atrophic nerves...
متن کاملQuantitative relationship between cupping of the optic disc and visual field loss in chronic simple glaucoma.
The extent of cupping was measured from optic disc photographs of 300 patients with ocular hypertension and suspected or established chronic simple glaucoma, and their visual fields were recorded. The incidence of field defects increased as the vertical cup:disc ratio increased, a value of 0-70 for this ratio being a particularly useful guide to the presence or absence of field loss. There was ...
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...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2019
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0220992