Multifocal electroretinograms in the early stages of diabetic retinopathy.

Author: Minzhong YU ¹ ; Xin ZHANG ; Xingwu ZHONG ; Qiang YU ; Futian JIANG ; Juanmei MA ; Dezheng WU
Author Information

1. Ophthalmological Laboratory, Ministry of Public Health, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
Publication Type:Journal Article
MeSH: Aged; Diabetic Retinopathy; pathology; physiopathology; Electroretinography; methods; Female; Humans; Male; Middle Aged; Retina; pathology; physiopathology; Time Factors
From: Chinese Medical Journal 2002;115(4):563-566
CountryChina
Language:English
Abstract:
OBJECTIVETo investigate the characteristics of multifocal electroretinograms (mf-ERG) of different phases in diabetic retinopathy (DR) and its clinical significance.
METHODSMultifocal electroretinograms in patients with DR (I - II stage) were tested with VERIS IV system.
RESULTSIn I - II stage, the absolute values of N1, P1 and N2 response densities, and the N1-P1 and P1-N2 response densities were attenuated is a field of about 45 degrees in diameter.
CONCLUSIONAs a new objective and quantitative examination for spatial visual function, multifocal electroretinograms may be valuable in the diagnosis of diabetic retinopathy.