Signs of Horner syndrome include reduced palpebral fissure with mild ptosis involving both upper and lower lids due to paralysis of the Müller’s muscles innervated by the sympathetic pathway ...

The examination includes assessing the patient’s visual acuity, extraocular movements and pupillary light reflex, marginal reflex distance (distance from the corneal light reflex to the upper eyelid ...

Ptosis, also known as blepharoptosis, is a medical term for a drooping upper eyelid. This condition occurs due to a weakness or disorder of the levator muscle, which controls the upper eyelid.

Compensating for anesthesia-induced lagophthalmos and adjusting the palpebral fissure increased the predictability of eyelid height after surgery for pediatric congenital ptosis, a study found.

This is the first study to determine the forces exerted by lid speculae over a range of palpebral apertures. Mechanical testing was undertaken using a Bose 3200 materials testing machine.

She had bilateral ptosis; her palpebral apertures measuring 6 mm right and 7 mm left . There was restriction of both down- and upgaze with absent convergence, but dextro and ...