A condition in which there is a redundancy of the skin of the upper eyelids so that a fold of skin hangs down, often concealing the tarsal margin when the eye is open. SYN: ptosis adiposa. [blepharo- + G. chalasis, a slackening]
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n.
excessive eyelid skin resulting from recurrent episodes of oedema and inflammation of the eyelid. It occurs in young people, causing drooping of the lid. Compare dermatochalasis.
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bleph·a·ro·chal·a·sis (blef″ə-ro-kalґə-sis) [blepharo- + Gr. chalasis relaxation] relaxation of the skin of the eyelid, due to atrophy of the intercellular tissue; called also dermatolysis palpebrarum.Medical dictionary. 2011.