This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cataract, Subject name: Ophthalmology
Most common visually debilitating cataract in children: 
Select and explain. 
A. Blue dot cataract, B. Zonular cataract, C. Anterior polar cataract, D. Posterior polar cataract
B: Zonular cataract
Answer: B: Zonular cataract 
Explanation: Zonular cataract is most debilitating cataract in children. Types of congenital cataract Punctate: Blue Dot Cataract (Asymptomatic). Sutural cataract : Y suture opaque, nuclear cataract. Zonular cataract/Lamellar Most Common visually significant cataract (riders). Fusiform Nuclear Coronary Anterior polar Lamellar Cataract With Rider Blue dot cataract Anterior polar cataract Posterior polar cataract