Diseases and Conditions
Blepharitis (blef-uh-RYE-tis) is inflammation of the eyelids. Blepharitis usually involves the part of the eyelid where the eyelashes grow and affects both eyelids.
Blepharitis commonly occurs when tiny oil glands located near the base of the eyelashes become clogged. This leads to irritated and red eyes. Several diseases and conditions can cause blepharitis.
Blepharitis is often a chronic condition that is difficult to treat. Blepharitis can be uncomfortable and may be unsightly. But it usually doesn't cause permanent damage to your eyesight, and it's not contagious.