从事暗房工作和井下采矿、质量检测、编辑工作的人员,其视网膜杆状细胞中的视紫质消耗很大,多补充维生素A能提高杆状细胞的活性,应多吃蛋类、乳制品、水果、动物肝脏。从事陶瓷、干电池生产的人,由于接触锰较多,会产生缺铁现象,应多吃黄豆、韭菜、木耳、瘦肉以及动物肾、血等含铁多的食物。从事印刷、铸造、电焊、玻璃、搪瓷等铅作业的人应多 Personnel engaged in darkroom work and underground mining, quality testing and editing work, the retinal rod cells in the rhodopsin consumption is large, more vitamin A can increase the activity of rod-shaped cells, should eat more eggs, dairy products, Fruit, animal liver. Engaged in ceramic, dry battery production, due to contact with manganese more, there will be iron deficiency phenomenon, should eat soybeans, leeks, fungus, lean meat and animal kidneys, blood and other iron-rich foods. People engaged in printing, casting, welding, glass, enamel and other lead operations should be more