Blepharitis is a chronic or long term inflammation of the eyelids and eyelashes. It affects people of all ages. Seborrheic blepharitis is often associated with dandruff of the scalp or skin conditions like acne. It can appear as greasy flakes or scales around the base of the eyelashes and a mild redness of the eyelid. It may also result in a roughness of the normally smooth tissue that lines the inside of the eyelid.
Ulcerative blepharitis is less common, but more serious.
It is characterized by matted, hard crusts around the eyelashes, which when removed, leave small sores that ooze or bleed. There may also be a loss of eyelashes, distortion of the front edges of the eyelids and chronic tearing. In severe cases, the cornea, the transparent front covering of the eyeball, may also become inflamed. In many cases, good eyelid hygiene and a regular cleaning routine may control blepharitis. In cases where bacterial infection is a cause, eyelid hygiene may be combined with various antibiotics and other medications.