Ocular allergies are caused by an extreme sensitivity to various substances. When the allergen interacts with your eye cells, a substance known as histamine is released into the body, which causes itching, redness, and swelling. Itching is usually the primary symptom of eye allergies.
We use various diagnostic techniques including medical and family history analysis and an eye examination to diagnose your condition. There are times when someone may have both dry eye and ocular allergy at the same time.