###Rationale: Ans. Chronic progressive external ophthalmoplegia

###Answer: OPTION B IS CORRECT.
###Question: A 26 years old male with restriction of eye movements in all directions and moderate ptosis but with no diplopia or squint. Diagnosis is:
###Options:
A. Thyroid ophthalmopathy
B. Chronic progressive external ophthalmoplegia
C. Myasthenia gravis
D. Multiple cranial nerve palsies
