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(pl. chalazia)

An pimple-like enlargement caused by inflammation of the meibomian glands.


Many dry eye patients have an underlying condition causing chronic blockage of the meibomian glands (the oil-producing glands in the eyelids which are so fundamental to a healthy, balance tear film). It is that same chronic meibomian gland blockage that can lead to the formation of chalazia. People with acne rosacea or chronic blepharitis may be more prone to develop chalazia.

Chalazia are sometimes confused with stys, which are caused by bacterial infection. Stys may develop into chalazia.

See meibomian gland dysfunction for more about treatment.


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