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64名对象,年龄18～20岁,分为4组。在严格控制正常膳食摄入的情况下及补充复合微量营养素后,以血清维生素A(VA)、锌含量和快速暗适应恢复时间、微光近视力时间、绝对阈值为测定指标,观察受试人员机体暗适应功能变化,实验期14天。实验结果表明,补充足够剂量(生理需要量)维生素A,同时补充多种水溶性维生素和微量元素锌之后,人体暗适应功能提高效果更佳。由该复合微量营养素组成的制剂,可提供长期从事视力集中和低照度作业人员经常服用,以维持人体正常的暗适应功能,提高工作效率。
64 subjects, aged 18 to 20 years old, divided into 4 groups. After strict control of normal dietary intake and supplementation of compound micronutrients, serum vitamin A (VA), zinc content and fast dark adaptation recovery time, low light vision time and absolute threshold were used as test indicators Body dark adaptation function changes, the experimental period of 14 days. Experimental results show that supplementation of adequate doses (physiological requirements) of vitamin A, while adding a variety of water-soluble vitamins and trace elements of zinc, the human body to enhance the dark adaptation function better. By the compound micronutrient composition of the preparation, can provide long-term focus and low light intensity operations staff to take regularly to maintain the body’s normal dark adaptation function, improve work efficiency.