![]() ![]() The stye generally appears as a pustule with mild erythema of the lid margin. With external hordeolum, pain, edema, and swelling are localized to a discrete area of the eyelid that is tender to palpation. Patients will frequently have a history of similar prior lesions of the eyelid. In some cases, the complaint may start as generalized edema and erythema of the lid that later becomes localized. Either the upper or lower lid may be involved. Usually, patients present complaining of a confined burning, tender swelling on one eyelid. This condition tends to be subacute to chronic and presents with a painless nodule within the eyelid or at the lid margin. Due to its deeper position within the eyelid, internal hordeola have a less defined appearance than external hordeolum.Ĭhalazia occur secondary to mechanical obstruction and dysfunction of the meibomian gland with subsequent stasis and blockage of the release of sebum. When a meibomian gland becomes acutely infected, it results in an internal hordeolum. ![]() They produce an oily layer on the surface of the eye that helps to maintain proper lubrication of the eye. The meibomian glands are modified sebaceous glands that are found in the tarsal plate of the eyelids. Termed external hordeolum, these produce the typical appearance of a stye with a localized pustule of the eyelid margin. Infection of Zeis and Moll glands (ciliary glands) causes pain and swelling at the base of the eyelash with localized abscess formation. ![]() Three different glands within the eyelid are implicated in the pathogenesis of hordeolum when they become infected by S. ![]()
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