title: ERG characteristics of congenital stationary night blindness.
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.
authors.affiliation: Zhongshan Ophthalmic Center, Sun Yat--sen University of Medied Sciences, Guangzhou, China.
authors.forename: D
authors.initials: D
authors.lastname: Wu
authors.forename: X
authors.initials: X
authors.lastname: Xu
authors.forename: L
authors.initials: L
authors.lastname: Wu
authors.forename: T
authors.initials: T
authors.lastname: Luo
mesh_terms: 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