This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lens, Subject name: Ophthalmology
Typically bilatyeral inferior subluxations of the lens is seen in - 
Select and explain. 
A. Marfan's syndrome, B. Homocystinuria, C. Hyperinsulinemia, D. Ocular trauma
B: Homocystinuria
Answer: B: Homocystinuria 
Explanation: In Homocystinuria there is inferomedial (inferonasal) dislocation of lens. (Ref: Khurana 7th/e p.222 & 4th/e p.202)