Eye redness


What Causes Eye Redness?

At some point in your life, you have most likely experienced eye redness. Many people experience this annoying symptom without knowing what causes it. Red eyes can be caused by many different things, including allergies, infections, and dry eyes. The commonalities between these conditions are inflammation and irritation, but the underlying cause can vary. Here is a breakdown of some possible causes of eye redness.


One of the most common causes of eye redness is allergies, which can produce a host of other symptoms such as watery eyes, itchiness, and puffiness. Allergens such as dust, pollen, pet dander, and mold can make eyes become red, swollen, and itchy. Antihistamines or decongestants are usually effective in treating allergies, but if you have persistent or recurrent symptoms, it’s best to talk to your doctor.


Eye infections can cause redness and other symptoms, including discharge, pain, and swelling. Common eye infections include conjunctivitis, keratitis, and uveitis. Conjunctivitis is an inflammation of the conjunctiva, the thin membrane that lines the eyelids. Keratitis is an infection of the cornea, the clear front layer of the eye. Uveitis is an inflammation of the uvea, the middle layer of the eye. Depending on the type and severity of the infection, eye drops or oral medication may be necessary to treat the infection and relief the associated symptoms.

Dry Eyes

Dry eyes can also cause redness. Dry eye syndrome is a condition caused by a failure of the tear glands to produce enough tears, or by tears that evaporate too quickly. Common symptoms of dry eyes include burning, stinging, and increased redness of the eye. Properly lubricating the eyes, using artificial tears, and avoiding environmental sources of irritation can all help to alleviate dry eye symptoms.

Other Causes

Other possible causes of red eyes include trauma, environmental conditions such as wind, fumes, and even the air conditioning. Also, contact lenses can irritate the eyes and cause them to become red. If you use contacts, be sure to replace them as directed and take breaks from wearing them. And if you find yourself in a smoky or dusty environment, consider wearing sunglasses to protect your eyes.

Wrapping Up

Eye redness can be caused by many different conditions, including allergies, infections, and dry eyes. If you are experiencing red eyes or any of the associated symptoms, talk to your doctor or optometrist to determine the underlying cause and the best course of treatment. Proper self-care can help to reduce eye irritation and keep your eyes healthy.