If blurred eyes are caused by physiological factors (blurred vision caused by excessive eye use), then food therapy has a certain alleviating effect, if it is caused by eye diseases and other pathological factors such as blurred vision, then the effect of food therapy is not great. If the blurred vision is caused by eye diseases, the effect of dietary therapy will not be great. If the blurred vision is caused by eye diseases and other pathological factors, the effect of dietary therapy will be small. Patients can also consume more protein-rich foods, such as milk, eggs, beef, etc., which are effective in protecting the patient’s eyes and relieving visual fatigue. Refractive errors, corneal lesions, cataracts, retinal damage and other causes can also lead to blurred eyes of patients, such patients can not alleviate the discomfort symptoms through dietary therapy, patients can be treated under the guidance of the doctor to improve vision. Food therapy does not have a curative effect. It is recommended that patients with blurred vision and other discomforts consult a doctor to evaluate their condition and follow the doctor’s instructions.