MethodsERGs were recorded on 65 normal subjects (112 eyes) aged 21-76 years using disposable DTL electrodes at full-field ganzfeld brief red flashes on a blue background (luminance of 10 cd/m 2 ).

• 方法应用美国ESPION视觉电生理仪及一次性使用的DTL电极测量我国正常人65例(112眼)的PhNR。