Allergic conjunctivitis is the inflammation of the front of the eyes caused by allergies. There are two types of allergic conjunctivitis: seasonal allergic conjunctivitis and perennial allergic conjunctivitis.
Seasonal allergic conjunctivitis: occurs as a result of outdoor environmental triggers, usually in Spring and Summer months (IE. pollen, grass).1
Perennial allergic conjunctivitis: occurs as a result of indoor triggers, such as pet dander and dust.1 Can occur year-round.