Eyesight-improving decoction
15 g of black bean powder, 15 g of walnut kernel, 250 ml of milk and 19 ml of honey. Grind black beans into powder after the beans are parched until they are done. Parch the walnut kernel until it is slightly burnt. Then remove the covering and pound the kernel to paste. Take out 15 g of the above two foods and put them into the boiled milk and add the honey to the milk. Take the prepared medicinal milk in the morning.

Eye-nourishing decoction
10 g of Gouqizi (Fructus Lycii), 10 g of Sangshenzi (Fructus Mori), lOg of Shanyao (Rhizoma Dioscoreae) and 10 Chinese dates. Decoct the ingredients in two different times. Mix the two decoctions and take the mixed decoction in two different times.

Besides, it is advisable to eat the following foods regularly to protect the eyes.

Foods with rich vitamin A For instance, yolk, milk, goat's milk, animal liver, green leafy vegetable, and maize. These foods prevent corneal dryness and degeneration.

Foods with rich carotin For example, carrot, pumpkin, red potato, green leafy vegetable, green soya bean and tomato.

Foods with rich vitamin B2 For instance; flour, peanut, egg, lean meat, milk and green leafy vegetable.