Making when establishing a check-up, had better be to be in warm environment, let a patient shuck off jacket, back to scrutator.

在作立位体时，最好是在温暖的环境中，让患者脱去上，者。

Without dark adaptation plan person, can use a patient the normal light of be good at eye or scrutator becomes aware undertake contrasting determining for the standard.

无暗适应计者，可利用患者健眼或者的正常光觉为标准进行对比测定。