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
Anterior lenticonus is found in - 
Select and explain. 
A. Lowe's syndrome, B. William's syndrome, C. Alpo's syndrome, D. Down's syndrome
C: Alpo's syndrome
Answer: C: Alpo's syndrome 
Explanation: Lenticonus: It refers to cone-shaped elevation of the anterior pole (lenticonus anterior) or posterior pole (lenticonus posterior) of the lens. Lenticonus anterior may occur in Alpo's syndrome and lenticonus posterior in Lowe's syndrome. REF IMG