[Pattern visual evoked potential and pattern electroretinogram in patients with retinitis pigmentosa].
The pattern visual evoked potential (PVEP) was analyzed in 22 patients (42 affected eyes) with retinitis pigmentosa, and in 9 cases the pattern electroretinogram (PERG) was simultaneously examined to find that (1) PVEP could be recorded in 31 (73.8%) and was normal in 17 (40.5%) of the affected eyes; (2) PVEP was related to visual acuity, being abnormal in all the eyes with visual acuity below 0.2, but normal in most eyes with visual acuity over 0.2; (3) the changes in PERG and PVEP were mostly consistent; and (4) PVEP and PERG might well be utilized for the morbid evaluation of central retina in patients with retinitis pigmentosa.
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Bethune International peace Hospital, Shijiazhuang, Hebei Province.
D000293:Adolescent; D000328:Adult; D002648:Child; D004596:Electroretinography; D005074:Evoked Potentials, Visual; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010775:Photic Stimulation; D012174:Retinitis Pigmentosa / Q000503:physiopathology*