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Eye Allergies Causes
An allergic reaction to the conjunctiva is popularly known as allergic conjunctivitis or ‘pink eye.’ It varies from soft irritation of the eyes to severe itching, which leads to corneal scaring. Direct contact with the allergen is the main cause of eye allergies. The contact can happen through air, hands and from materials used to rub the eyes.
Pollens, spores, pet dander, hair, dust, grass, mold, weeds, certain plants, nail polish, certain medicines and secretions like saliva are some of the most common allergens. The conjunctiva when comes into contact with an allergen produces a chemical called histamine, which causes the symptoms associated with eye allergies.
Cigarette smoke, wind, perfumes, air pollution, diesel exhaust also creates irritation to the conjunctiva but this is not included in eye allergies.
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