Meet the Allergens

An allergic reaction is your immune system’s inflammatory response to normally harmless environmental substances, known as allergens.¹ These include airborne particles like pollen.¹

Allergens that cause most ocular allergies

• Outdoor allergens include: Pollen from trees, weeds and grass, outdoor moulds²
• Indoor allergens include: Dust mites, pet dander, cockroaches, indoor moulds³

Seasonal allergic conjunctivitis is most often triggered by tree and grass pollens.⁴ Perennial (year-round) allergic conjunctivitis is commonly caused by dust mites and animal dander.⁴

Learn more about the different types of ocular allergies and their causes: View table