There is no uniform desensitization method for patients with eye allergies, and clinical treatment is mainly through anti-allergy eye drops. Some people also advocate to determine the allergens, and then make the allergens into different concentrations of the preparation, so that the patient immune, but the clinical use is less. Eye allergy is usually due to the allergic reaction triggered by mast cell degranulation, release of histamine, leukotrienes and other allergic transmitters after the allergic patients come into contact with allergens such as pollen, smoke, willow, dust and other allergens in the external environment, and the patients can experience eye congestion, edema, itching and other uncomfortable symptoms. At present, there is no uniform method to improve the allergic symptoms of the eyes through desensitization treatment, patients can follow the doctor’s instructions to use anti-allergy eye drops, such as olopatadine hydrochloride eye drops, azelastine hydrochloride eye drops, ketotifen fumarate eye drops and so on. Some people also advocate to determine the allergens, and then make the allergens into different concentrations of the preparation, so that the patient is immune, but the clinical use is less. Patients with significant eye allergies are advised to seek prompt medical attention to assess their condition and choose the appropriate treatment under the guidance of their doctor.