BLEPHARITIS

inflammation of the eyelids, most commonly occurring in association with seborrhea, a skin disorder arising from overactivity of the sebaceous glands. In sebaceous blepharitis, also called squamous blepharitis, the margins of the lids are red and irritated, with greasy scales clinging to the bases of the eyelashes. The inflammation extends onto the lining of the lids. The condition is remedied by treating the underlying disorder. In allergic blepharitis the eyelid skin is thickened and red, and the tissues of the lids are swollen with abnormal quantities of fluid. This type of lid inflammation may be caused by reaction to nail polish, soap, hair spray, or medications used in the eyes. Allergic blepharitis may closely resemble the early stages of exophthalmic goitre. In another type of blepharitis the inflammation is caused by infection with staphylococcus organisms. The eyelid margins may be ulcerated, and there are dry scales in the eyelashes at their bases. The infection is treated with antibiotic or sulfonamide ointments.