Objective To explore the early diagnosis of chronic glaucoma with pattern electroretinogram (P ERG) and pattern visual evoked potential (P VEP).

• 目的 探索图形视网膜电图 (pattem electroretinogram PERG)和图形视觉诱发电位 (pattem visnal evoked potential,P-VEP)对慢性青光眼的诊断价值。