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Knowledge Centre / Horner's Syndrome

Horner's Syndrome

Recognition and investigation of ptosis, miosis, and anhidrosis.

Reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP (General Practitioner)
Last reviewed: 21 October 2025
NeurologyOphthalmology

Clinical Guidelines

Clinical Management Guideline: Abnormalities of the pupil (College of Optometrists)
National
2022 ACC/AHA Guideline for the Diagnosis and Management of Aortic Disease
Local
2022 ACC/AHA Guideline for the Diagnosis and Management of Aortic Disease
Local
Abnormalities of the pupil - College of Optometrists Clinical Management Guideline
Local
European Society for Vascular Surgery (ESVS) 2023 Clinical Practice Guidelines on the Management of Atherosclerotic Carotid and Vertebral Artery Disease
Local
New 2025 ACR Appropriateness Criteria® 1 Horner Syndrome
Local

Recent iatroX Q&As

  • When should I refer a patient with Horner's syndrome for further investigation or specialist assessment?Updated: 8/22/2025
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