A person has restricted eye movements in all directions, ptosis but no squint or diplopia. What is the diagnosis?
Myasthenia
CPEO
Multiple cranial nerve palsy
Thyroid myopathy
Chronic progressive external ophthalmoplegia (CPEO)CPEO is a mitochondriopathy. There is slowly progressive weakness of all the ocular muscles with a variable degree of motility disorders and corresponding double vision, and subsequently there is also involvement of the limb muscles.
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