Under normal dietary condition,a proper dose of taurine and micronutrients was taken orally by subjects of experiment group for 4 weeks,and the quick dark adaptation time was measured before experiment,2 week and 4 week of treatment.

• 实验期限为 4周 ,分别在服药前、服药 2周及服药 4周检测受试人员快速暗适应时间。