Patients with diabetic fundopathy can eat small onions in moderation after laser surgery, but patients need to pay attention to a balanced daily diet and regular review. Small onion is a kind of vegetable, usually used for flavoring in food cooking, small onion is not high in calories, fat and sugar content, and the taste is not particularly big, so diabetic fundopathy patients can eat small onion in moderation after laser surgery, which does not have a great impact on the condition as well as the body’s recovery. Diabetic fundopathy patients after laser surgery, daily diet should be light, nutritious, balanced, not suitable for a large number of spicy, irritating, greasy, high sugar and other types of food, not conducive to the recovery of the condition. It is recommended that patients with diabetic fundopathy follow the doctor’s instructions for care after laser surgery, regular review, and timely consultation when discomfort occurs.