Allergic Conjunctivitis Frequently Asked Questions

What causes allergic conjunctivitis?

Allergic conjunctivitis is caused by the immune system’s response to allergens such as pollen, dust mites, pet dander, and mold spores. When these allergens come into contact with the eyes, they trigger an inflammatory response, leading to symptoms like redness, itching, and watering.

How is allergic conjunctivitis diagnosed?

Diagnosis is primarily based on a patient’s history and symptoms. An eye examination is performed to rule out other conditions. In some cases, allergy testing (skin prick test or blood test) may be recommended to identify specific allergens responsible for the reaction.

What are treatment options for allergic conjunctivitis?

Treatment options include avoiding known allergens, using artificial tears to wash away allergens, applying cold compresses to reduce swelling, and using antihistamine and mast cell stabilizer eye drops to alleviate symptoms. In more severe cases, nonsteroidal anti-inflammatory drugs (NSAIDs) or corticosteroid eye drops may be prescribed.

Can allergic conjunctivitis be prevented?

While it may not be possible to completely prevent allergic conjunctivitis, minimizing exposure to allergens can significantly reduce the frequency and severity of episodes. Preventive measures include using air purifiers, keeping windows closed during high pollen seasons, regularly cleaning living spaces to reduce dust and pet dander, and avoiding rubbing the eyes.

Is allergic conjunctivitis contagious?

No, allergic conjunctivitis is not contagious. It is caused by an individual’s allergic reaction to specific allergens and cannot be spread from person to person.