Related Experiment Videos
ERG characteristics of congenital stationary night blindness
1Zhongshan Ophthalmic Center, Sun Yat--sen University of Medied Sciences, Guangzhou, China.
Yan Ke Xue Bao = Eye Science
|June 1, 1990
Abstract:
The ERGs of 9 cases (18 eyes) of congenital stationary night blindness with normal fundi or myopia were tested. All eyes showed nonrecordable rod ERG and cone ERG with normal a-wave. Scotopic mixed ERGs were of the negative type in 7 eyes and of the subnormal type in 11 eyes. The b/a ratio was reduced in all eyes. The ERG characteristics are useful for the classification, estimation of the probable location of the lesion, and differential diagnosis of the disease.