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，故可使那盖氏暗适光度稳定不变。

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.

无暗适者，可利用患者健眼或检查者正常光觉为标准进行对比测定。