| ptosis sympathetica | <syndrome> A nerve condition which involves a dropping eyelid (ptosis), constricted pupil, enophthalmos and lack of sweating on one side of the face. Often seen in association with injury (for example neck fracture, penetrating injury) to the cervical sympathetic nerve trunk in the neck or a Pancoast tumour involving both the upper and lower brachial plexus. (29 Sep 1997) |
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| ptosis | 1. <anatomy> The prolapse of an organ or part. 2. <clinical sign> The drooping of the upper eyelid from paralysis of the third nerve or from loss of sympathetic innervation. Origin: Gr. Ptosis = fall (06 Oct 1997) |
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| ptosis adiposa | 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. Synonym: ptosis adiposa. Origin: blepharo-+ G. Chalasis, a slackening (05 Mar 2000) |