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

在作立位体检时，最好是在温暖的环，患脱去上衣，背检查。

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，利用患健眼或检查的正常光觉为标准进行对比测定。