Perennial allergic conjunctivitis: This refers to the inflammatory response that is suddenly triggered by exposure to allergens like animal dander, pollens, and many other antigens. Seasonal allergic conjunctivitis that lasts for less than 4 weeks makes up for most ocular eye allergy cases.
Vernal keratoconjunctivitis: This is a bilateral, seasonally occurring and acute form of allergic inflammation that affects the ocular surface. In comparison with other allergic conjunctivitis, this is capable of causing extreme damage to the ocular surface of the eye which can lead to vision loss or corneal scarring.
Giant papillary conjunctivitis: This type of allergic eye leads to redness, irritation, and swelling in the lining of the membrane inside the eyelids. It is imperative to keep in mind that people who have an artificial eye or wear contact lenses have the highest risk of getting giant papillary conjunctivitis.
Phlyctenular keratoconjunctivitis: Nodular inflammation of the conjunctiva or the cornea of the eye is called phlyctenular keratoconjunctivitis. This type of allergic eye reaction often results from sudden hypersensitivity reaction to antigens.