J Korean Ophthalmol Soc.  2000 Jan;41(1):149-155.

Changes of ERG Parameters in Diabetic Retinopathy

• Han YK
• Ohn YH

Abstract

The purpose of this study is to evaluate the parameters of electroretinography[ERG]in eyes with diabetic retinopathy. The ERG responses were recorded in 46 normal subjects and 72 diabetic patients.We obtained the values of 12parameters from 5 basic responses and compared the changes of ERG parameters with the stages of diabetic retinopathy. The amplitude of oscillatory potentials decreased progressively from normal to severe nonproliferative diabetic retinopathy[NPDR].The b-wave implicit time of cone response was delayed in eyes with moderate NPDR to high risk proliferative diabetic retinopathy[PDR]. The b-wave amplitude of rod response was reduced in eyes with mild to moderate NPDR.The a-wave amplitude of maximal combined response significantly decreased between severe NPDR and early PDR.

Keyword

Diabetic retinopathy; Electroretinography; Significant parameters

MeSH Terms

Diabetic Retinopathy*
Electroretinography