Garlic is a food favored by many and is often used to prevent and treat certain diseases. However, long-term and excessive consumption of garlic, especially for patients with eye diseases, is harmful. Some people who love eating garlic often, by the time they reach their fifties or sixties, experience blurred vision, declining eyesight, tinnitus, a feeling of heaviness in the head and lightness in the feet, and memory loss, without realizing these are adverse effects caused by garlic. Others suffer from myopia or other eye diseases, and although they take traditional Chinese medicine for treatment, they do not avoid garlic, resulting in poor therapeutic effects. Traditional Chinese Medicine places great importance on dietary restrictions. Patients with eye diseases must avoid the "five pungents" during treatment, which means avoiding garlic, wild garlic, onions, ginger, and other spicy and stimulating foods, otherwise it will affect the treatment's efficacy. Eating large amounts of garlic during the summer and autumn has the greatest impact on the eyes. Traditional Chinese Medicine holds that long-term and excessive consumption of garlic damages a person's qi and blood, and harms the eyes and brain. According to the "Compendium of Materia Medica," "long-term consumption harms the liver and damages the eyes." Therefore, patients with eye diseases should try to avoid eating garlic, especially those who are in poor health or have weak qi and blood.