Yes, food allergies can cause you to get watery eye, which is called eye irritability, or anaphylactic conjunctivitis in medical science. Allergens that cause anaphylactic conjunctivitis are numerous, including mainly pollen, clammy air, dermatophagoid mite, animal furs, etc. Anaphylactic conjunctivitis is not contagious and main symptoms are red eyes, hydroncus, aningeresting, tears, itchy and scorching hot. Once you are allergic to some food, you can get above symptoms. Some people can get comedo, which often appears on the lower jaw or near the mouth. Some have the complicating diseases of fatigue, ulcer or headache. To cure the anaphylactic conjunctivitis, you first need to avoid getting in touch with the allergens. If you feel discomfort in the eyes, you had better go to hospital to check out the cause and take medicines under the guidance of the doctor.