为了探讨影响暗适应时间的各种因素,于1983年4月～11月,采用石家庄光学仪器厂制造的YA—2 T型暗适应计对359例不同年龄组健康人群的暗适应时间进行调查,其结果: 1、359例正常健康人群的暗适应时间调查,正常值为29.1±1.71秒,年龄,性别对暗适应时间无明显的影响。 2、服用维生素A饱和量后,暗适应时间明显缩短,以35岁年龄组为例,服用维生素A In order to explore the various factors that affect the dark adaptation time, from April 1983 to November 1983, YA-2 T-acclimation meter manufactured by Shijiazhuang Optical Instrument Factory was used to investigate the dark adaptation time of 359 healthy subjects of different age groups, The results: 1,359 cases of normal healthy population dark adaptation time survey, the normal value of 29.1 ± 1.71 seconds, age, gender, dark adaptation time had no significant effect. 2, taking vitamin A saturation, the dark adaptation time was significantly reduced to 35-year-old age group, for example, taking vitamin A