Red Eyes due to Allergies Underlying Cause
Allergic conjunctivitis occurs when the body's immune system over-reacts to a substance in the environment that is normally harmless. An allergen is a substance that triggers an allergic reaction.
Common causes of allergic conjunctivitis include:
- Chemical fumes
- Eye drops
- Hay fever
Continue to Red Eyes due to Allergies Anatomy
- Bielory L, Lien KW, Bigelsen S. Efficacy and tolerability of newer antihistamines in the treatment of allergic conjunctivitis. Drugs. 2005;65(2):215-28. 
- Bonini S. Atopic keratoconjunctivitis. Allergy. 2004 Aug;59 Suppl 78:71-3. 
- Ono SJ, Abelson MB. Allergic conjunctivitis: update on pathophysiology and prospects for future treatment. J Allergy Clin Immunol. 2005 Jan;115(1):118-22. 
- Stahl JL, Barney NP. Ocular allergic disease. Curr Opin Allergy Clin Immunol. 2004 Oct;4(5):455-9.