This document discusses hordeolum or styes, which are red, painful lumps near the eyelid caused by bacterial infections or blocked oil glands. It describes the types of styes, etiological factors, signs and symptoms, diagnostic evaluation, pathophysiology, and management. Styes are usually external, located at the base of an eyelash follicle or internal, found in the oil glands inside or under the eyelid. Management involves application of warm compresses, cleansing, and topical antibiotic ointments and eye drops. Complications can include infection of the eyelids or surrounding tissues if not properly treated.