Dark adaptation in two healthy male subjects was studied by means of a Nagel's adaptometer.

摘要试验时施用平流电，故可使那盖氏暗之光度稳不变。

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.

无暗者，可利用患者健眼或检查者的正常光觉为标准进行对比测。