Eye allergy is an eye problem, when the eye is overreacting to a substance by considering it as harmful, but actually, it may not be.
Let us take dust; it is not harmful to most of the peoples and everyone frequently come across dust conditions, still some oversensitive allergic individuals may produce excessive tears and mucus to protect against dust mites.
About 40 percent of peoples have allergy symptoms; out of this, 75 percent of those symptoms affect the eyes.
Types of Eye allergies
Most cases of eye allergies affect the conjunctiva (which is the tissue lining that covers the surface of the eyeball and the inner layer of the eyelids) is commonly called as allergic conjunctivitis. There are two types of allergic conjunctivitis, they are:
- Seasonal allergic conjunctivitis (SAC)
- Perennial allergic conjunctivitis (PAC)
Seasonal allergic conjunctivitis (SAC) and Perennial allergic conjunctivitis (PAC) is mostly triggered by an immune reaction involving a sensitized individual and an allergen (SAC is mostly triggered by the pollens and PAC is mostly triggered by the animal dander, feathers and dust mites). Simply, this means that if allergic to a particular substance, then if come into contact with those substances can trigger an allergic reaction, such as itching, sneezing, etc.