WHAT CAUSES ALLERGIES?

Eye allergies, or allergic conjunctivitis, are caused by your immune system reacting to common environmental allergens like pollen, dust mites, pet dander, and mould by releasing histamine, which causes redness and irritation¹⁶.

The immune system mistakenly identifies these harmless substances as foreign invaders. Other triggers can include contact lens protein buildup,¹⁷ certain cosmetics¹⁸and even irritants like cigarette smoke¹⁶.