ERG characteristics of congenital stationary night blindness.
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.
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Zhongshan Ophthalmic Center, Sun Yat--sen University of Medied Sciences, Guangzhou, China.
Xu
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Wu
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Luo
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D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003623:Dark Adaptation; D003937:Diagnosis, Differential; D004596:Electroretinography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009755:Night Blindness / Q000151:congenital / Q000175:diagnosis / Q000503:physiopathology*; D014794:Visual Fields