There are several types of eye allergies. They include:
Seasonal Conjunctivitis-these are the most common and are generally caused by pollen from trees, grasses or weeds.
Perennial Conjunctivitis-these types of eye allergies last all year. Common causes of perennial conjunctivitis include reactions to dust mites, pet dander and other indoor allergens.
Contact Conjunctivitis-often triggered by makeup, perfume, medications or substances that get into eyes. Symptoms usually appear 2-4 days after the allergen comes into contact with the eye.
Giant Papillary Conjunctivitis(GPC)-caused by an allergic reaction to contact lenses. Poor hygiene when handling contact lenses, solutions and cases can also contribute.