近年来兴起了视机能他觉检查法的研究,临床上对某些眼病患者如视机能鉴定,精神病患者,幼儿患者进行视机能的他觉检查是很必要的。有关视力他觉检查法的研究较多、而有关暗适应和视野方面他觉检查法的研究报告却很少,这恐与缺乏这方面的检查仪器有密切关系。暗适应的他觉检查法也与视力的他觉检查法同样 In recent years, the rise of visual acuity he felt the examination of the law, the clinical diagnosis of certain eye diseases such as visual identification, mental patients, children with visual impairment of his ability to detect it is necessary. There are a lot of studies on the visual acuity test, but few reports on the methods of visual acuity and visual acuity, which are closely related to the lack of testing instruments in this area. Dark adaptation of his vision test is also the same as his visual acuity test