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

1.在作立位，最好是在温暖环境中，让患脱去上衣，背。

2.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.

2.无暗适应计，可利用患健眼或正常光觉为标准进行对比测定。