The pattern electroretinogram in glaucoma and ocular hypertension.

Pattern electroretinogram and automated perimetry in patients with glaucoma and ocular hypertension.

To determine whether the pattern electroretinogram can improve the objectivity of visual field assessment, 39 patients with glaucoma and ocular hypertension were studied. This was to establish whether there is a correlation between the pattern electroretinogram and the global indices (mean deviation and corrected pattern standard deviation) provided by automated perimetry using the Humphrey vis...

The 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...

Update 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...

Pattern electroretinogram and peripheral colour contrast thresholds in ocular hypertension and glaucoma: comparison and correlation of results.

AIMS Both pattern electroretinogram and peripheral colour contrast thresholds have been shown to be abnormal in glaucoma and ocular hypertension. This study evaluates each of these tests as tools for the early diagnosis of glaucoma, compares and contrasts the results, and examines the relation between the two tests in a large cohort of ocular hypertensive patients. METHODS Transient and stead...

Glaucoma and Ocular Hypertension