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What happens when you have eye allergies?

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When you have allergies, your body reacts to things that aren't really harmful, like pollen, dust mites, mold, or pet dander. It releases histamine, a chemical that causes swelling and inflammation. The blood vessels in your eyes swell and your eyes get red, teary, and itchy.

From: Understanding Eye Allergies WebMD Medical Reference

SOURCES:

University of Illinois Department of Ophthalmology and Visual Services: "Allergic Conjunctivitis."

American College of Allergy, Asthma & Immunology: "Eye Allergies."

American Association for Pediatric Ophthalmology and Strabismus: "Allergic Conjunctivitis."

Conn's Current Therapy , Bope, Rakel, Kellerman, eds; Saunders Elsevier, 2009.

Bielory L, , February 2008. Immunology and Allergy Clinics of North America

News release, FDA.

Reviewed by Alan Kozarsky on July 4, 2019

SOURCES:

University of Illinois Department of Ophthalmology and Visual Services: "Allergic Conjunctivitis."

American College of Allergy, Asthma & Immunology: "Eye Allergies."

American Association for Pediatric Ophthalmology and Strabismus: "Allergic Conjunctivitis."

Conn's Current Therapy , Bope, Rakel, Kellerman, eds; Saunders Elsevier, 2009.

Bielory L, , February 2008. Immunology and Allergy Clinics of North America

News release, FDA.

Reviewed by Alan Kozarsky on July 4, 2019

NEXT QUESTION:

What can you be allergic to if you have eye allergies?

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