NEURO

Question 1

Classification of ptosis

Answer 1

1. congenital
2. acquired
   
   1. mechanical
   2. aponeurotic
   3. myogenic - CPEO, myotonic dystrophy,
   4. neurogenic - 3rd, horners, migraine, miller fisher
   5. neuromuscular
   6. traumatic

Question 2

causes of acquired eyelid retraction

Answer 2

mechanical

• axial myopia
• proptosis secondary to mass
• orbital fracture with entrapment

myogenic

• TED
• post surgical
• MG
• carcinomatous

neurogenic

• dorsal midbrain syndrome
• PSP
• aberrant regeneration
• MG jaw wink
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