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phlycten


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n. a small pinkish-yellow nodule surrounded by a zone of dilated blood vessels that occurs in the conjunctiva or in the cornea. It develops into a small ulcer that heals without trace in the conjunctiva but produces some residual scarring in the cornea. Phlyctens, which are prone to recur, are thought to be due to a type of allergy to certain bacteria.

Subjects: Medicine and Health.


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