Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of CPEO

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

CPEO: Chronic progressive external ophthalmoplegia. Slowly progressive paralysis of certain eye muscles. See also: Kearns-Sayre syndrome.