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Meibomian glands in the lower eyelid imaged under amber light to show vasculature support and the gland structure. Meibomian gland dysfunction (MGD, also meibomitis or meibomianitis) is a chronic disease of the meibomian glands, which is commonly characterized by obstruction of the end of the duct that delivers the secretion produced by the glands (called meibum) to the eye surface, which ...
Meibomian gland dysfunction is more often seen in women and is regarded as the main cause of dry eye disease. [ 14 ] [ 15 ] Factors that contribute to meibomian gland dysfunction can include things such as a person's age and/or hormones, [ 16 ] or severe infestation of Demodex brevis mite.
The most common cause of dry eye is increased evaporation of the tear film, typically as a result of meibomian gland dysfunction (MGD). The meibomian glands are two sets of oil glands that line the upper and lower eyelids and secrete the oily outer layer of the tear film—the lipid layer. These glands often become clogged due to inflammation ...
Meibomian gland dysfunction is a result of abnormalities of the meibomian glands and altered secretion of meibum, which plays an imperative role in lagging the evaporation of tear films and smoothing of the tear film to produce an even optical surface.
The blocked gland is usually the meibomian gland, but can also be the gland of Zeis. [8] A stye and cellulitis may appear similar. [2] A stye, however, is usually more sudden in onset, painful, and occurs at the edge of the eyelid. [2] Cellulitis is also typically painful. [2] Treatment is initiated with warm compresses. [2]
A chalazion on the other hand is a blocked meibomian gland without infection. [4] A chalazion is typically in the middle of the eyelid and not painful. [5] Often a stye will go away without any specific treatment in a few days or weeks. [3] Recommendations to speed improvement include warm compresses. [5]
Neuroleptic malignant syndrome (Combination of fever, muscle stiffness, faster breathing, sweating, reduced consciousness, and sudden change in blood pressure and heart rate)
The periocular region, which includes the meibomian, Zeis, and sebaceous glands of the caruncle and eyelid, is the most common site accounting for up to 75% of SGc. [6] Meibomian glands are a type of sebaceous gland that lines the upper and lower eyelids and do not contain a follicle. The glands of Zeis contain the individual eyelash.