Why does horner cause ptosis

This is known as idiopathic Horner syndrome. Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. This content does not have an English version. This content does not have an Arabic version. Overview Horner syndrome signs Open pop-up dialog box Close.

Horner syndrome signs Decreased eye pupil size is a key sign of Horner syndrome. Request an Appointment at Mayo Clinic. Share on: Facebook Twitter. Show references Ropper AH, et al. Disorders of ocular movement and pupillary function. New York, N. Create account Log in. Main page.

Getting Started. Recent changes. View form. View source. Horner Syndrome From EyeWiki. Jump to: navigation , search. Enroll in the Residents and Fellows contest. Enroll in the International Ophthalmologists contest.

Residents and Fellows contest rules International Ophthalmologists contest rules. Original article contributed by :. Sachin Kedar M. All contributors:. Sachin Kedar MD , S. Assigned editor:. Preeti Thyparampil, MD. Horner Syndrome. Because of the wide array of possible causes, diagnosis of the underlying disorder frequently poses a challenge and requires a systematic approach. Once the lesion has been identified, treatment should be tailored to the specific cause.

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