Swelling and irritation of the eyelid that affects the eyelashes or tear production.

Blepharitis commonly happens when tiny oil glands in the inner eyelid become irritated and swollen. It often happens along with other skin conditions or allergies.

Symptoms include itchy eyelids that may look greasy and crusted. The skin on the eyelids may change color. Dry eyes also are a symptom.

Treatments include cleaning the eyelids, using antibiotic or steroid eyedrops, and treating underlying conditions. However, blepharitis tends to come back.