Wendel R T, Mannis M J, Keltner J L
Ann Ophthalmol. 1984 Aug;16(8):788-93.
We performed preoperative skin electrode bright-flash ERG and VEP testing on 32 patients undergoing elective penetrating keratoplasty. Twenty-six patients had unilaterally decreased vision and six had bilateral visual impairment. By combining our quantitative electroretinogram (ERG) and qualitative visual evoked potential (VEP) results with clinical findings, we were able to predict visual outcome in 92% of cases. Our findings suggest that bright-flash ERG and VEP testing are useful adjunct studies to clinical and ultrasound findings in patients with media opacities, comparison of a and b wave amplitudes with the fellow eye may yield prognostic information, a normal ERG and VEP in the presence of an equivocal afferent pupillary defect may signal a good visual prognosis, and ERG and VEP are not reliably predictive in patients with media opacity and amblyopia or macular disease.
我们对32例行择期穿透性角膜移植术的患者进行了术前皮肤电极闪光视网膜电图（ERG）和视觉诱发电位（VEP）检测。26例患者视力单侧下降，6例患者双眼视力受损。通过将定量视网膜电图（ERG）和定性视觉诱发电位（VEP）结果与临床发现相结合，我们能够在92%的病例中预测视力结果。我们的研究结果表明，对于有介质混浊的患者，闪光ERG和VEP检测是临床和超声检查结果的有用辅助研究，将患眼与健眼的a波和b波振幅进行比较可能产生预后信息，在存在可疑传入性瞳孔缺陷的情况下ERG和VEP正常可能预示良好的视力预后，而对于有介质混浊和弱视或黄斑疾病的患者，ERG和VEP并不能可靠地预测视力。
