This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Bilateral ptosis is not seen in 
Select and explain. 
A. Marfan's syndrome, B. Myaesthenia gravis, C. Myotonic dystrophy, D. Kearns sayre syndrome
A: Marfan's syndrome
Answer: A: Marfan's syndrome 
Explanation: A i.e. Marfan's Syndrome Marfan's Syndrome does not present with ptosis. It has bilateral subluxation of lens, retinal detachment, hypoplasia of dilator pupilae, flat cornea, axial myopia & angle anomaly etc.