The alternate use of both eyes occurs in cases where both eyes have good vision and both eyes can focus on the target, so the two eyes can be used alternately. The patient may not have any symptoms. Patients with alternating binocularity should eat a diet rich in vitamin A, green vegetables, and carotenoid-rich foods. The following foods are recommended to be eaten in moderation: 1. pumpkin Pumpkin contains a large amount of pectin and dietary fiber, as well as vitamin A. When steaming pumpkin, reduce the amount of staple foods consumed accordingly. 2. cabbage Cabbage Cabbage contains a large amount of pectin and dietary fiber, as well as vitamin A, which is helpful for vision. 2, cabbage Cabbage and cabbage, like cabbage, can be eaten in all seasons. Rich in folic acid, can promote appetite. When consumed, it is best to tear by hand. The original juice and flavor, nutrients are retained. 3, carrots Carotene has a function that can treat night blindness and dry eyes. There is a certain relief effect on vision, necessary for the human body, vitamin A is a fat-soluble vitamin, it is best not to eat raw. Alternatively, patients with double vision should not eat sweets; avoid eating spicy food, the following foods are recommended to eat less or not: 1, delicate pastries Pastries generally have more sugar and oil, reducing the body’s immunity. Too much intake is not good for the eyes. Coarse grains are the best choice of staple food. 2, chili pepper will stimulate the body, and more food is easy to get on fire. Other seasonings can be used for cooking.