Allergic conjunctivitis is a common eye condition, present in up to 30% of the population.
1,2
Allergic conjunctivitis is a common, not well appreciated, and largely benign condition. It is estimated that allergic conjunctivitis affects approximately 10% to 30% of the general population, and this rate has increased over the past decade.
1
While allergic conjunctivitis can manifest as an isolated finding, it is frequently associated with other allergic conditions such as allergic rhinitis, atopic dermatitis, and asthma.1 The rate of allergic conjunctivitis ranges between 30 and 71% in cases of allergic rhinitis.
2 Allergic conjunctivitis alone has been estimated in 6-30% of the general population and in up to 30% in children alone or in association with allergic rhinitis.
2
There are two main forms of allergic conjunctivitis which occurred during the pollen season called seasonal allergic conjunctivitis (SAC) or all-year-long called perennial allergic conjunctivitis (PAC) which occurs all year long, accounting for more than 95% of ocular allergy cases in the United States. There is also another less common form of allergic conjunctivitis called atopic keratoconjunctivitis (AKC) and vernal keratoconjunctivitis.
3,4 These forms are severe chronic inflammatory diseases of the ocular surface that include an immune response.
3
- Baab S, Le PH, Gurnani B, Kinzer EE. Allergic conjunctivitis. 2024 Jan 26. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan–.
- Leonardi A, Castegnaro A, Valerio AL, Lazzarini D. Epidemiology of allergic conjunctivitis: clinical appearance and treatment patterns in a population-based study. Curr Opin Allergy Clin Immunol 2015b;15(5):482-8.
- Labib BA, Chigbu DI. Therapeutic targets in allergic conjunctivitis. Pharmaceuticals (Basel) 2022;15(5):547.
- Villegas BV, Benitez-Del-Castillo JM. Current knowledge in allergic conjunctivitis. Turk J Ophthalmol 2021;51(1):45-54.