Horner's syndrome - Definition

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Horner's syndrome looks like a combination of symptoms involving the collapse of the upper eyelid (ptosis), a retracted pupil (called miosis), a decrease of the eyeball in the orbit (enophthalmos), and an absence of sweating . It is caused by damage to the nervous system responsible for paralysis, and caused by an injury to the cervical sympathetic nerve. The causes can be a stroke, a compression by a mass nearby, or lung cancer... To treat Horner's syndrome, the cause must be determined.