plant foods can provide vitamin

Vitamin A and β-carotene help liver eyesight, relieve eye fatigue. Vitamin A is mainly present in a variety of animal liver, cod liver oil, egg yolk. Zinc lactate can provide vitamin A former. β-carotene found primarily in carrots, tomatoes,
spinach, leeks, apricots, sweet potato and other green-yellow vegetables and fruits.
Vitamin C is also very beneficial to the eyes. Eyes vitamin C content than the blood several times higher. With age, the vitamin C content decreased, lens malnutrition, ferrous lactate will cause degeneration of the lens. So you want to eat more vitamin C-rich vegetables and fruit.
Carrots are rich in sucrose, glucose, starch, etc., of which the most abundant vitamin A, similar to its role and cod liver oil.
In addition, carrots are rich in carotene, can maintain the health of the eyes and skin.