Can Allergies Cause Dry Eyes?

Yes, allergies can absolutely cause dry eyes. The connection lies in the inflammatory response triggered by allergens.

Environmental allergens like pollen, dust mites, pet dander, and smoke irritate the eyes, causing an allergic reaction. This reaction leads to inflammation of the eye's conjunctiva and other structures. This inflammation can disrupt the delicate balance of tear production and tear film, resulting in dry eye symptoms. The inflammatory process can also affect the quality of tears, further contributing to dryness and discomfort.

Some allergy medications, such as certain antihistamines, can also exacerbate dry eye by reducing tear production.

Several sources confirm this link:

• Multiple medical websites (e.g., Mayo Clinic, WebMD, Allergists and other eye care professionals) explicitly state that allergies are a common cause of dry eyes.
• Research and studies (although not directly cited here, implied by the provided sources) demonstrate the inflammatory pathway leading to reduced tear production in allergic conjunctivitis.

Symptoms of Allergy-Induced Dry Eyes

Symptoms can overlap with typical allergic conjunctivitis and may include:

• Itching
• Burning
• Redness
• Watery eyes (initially, often followed by dryness)
• Blurred vision
• Sensitivity to light

Treatment Considerations

Treatment focuses on managing both the allergy and the dry eye. This often involves:

• Allergy medication: Antihistamines, mast cell stabilizers, or other allergy treatments may help reduce the allergic reaction. However, some antihistamines may worsen dry eye.
• Artificial tears: These over-the-counter drops can lubricate the eyes and provide temporary relief.
• Other therapies: Depending on the severity, your doctor may recommend other treatments like prescription eye drops, warm compresses, or lid hygiene.