Blepharitis

Alternative names:

eyelid inflammation

Definition:

An inflammation of the eyelid edges.

Causes, incidence, and risk factors:

Blepharitis has multiple causes but is usually caused by seborrheic dermatitis, a bacterial infection, or a combination of both, allergies, or infestation with lice (in the eyelashes). Blepharitis is characterized by excess oil production in the glands near the eyelid, which creates a favorable environment for the growth of bacteria. Eyelids appear red and irritated, with scales that cling to the base of the eyelashes. Blepharitis may be associated with repeated styes and chalazion.

Risk factors are poor hygiene, seborrheic dermatitis of the face or scalp and allergies.