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
In posterior capsular cataract, treatment is – 
Select and explain. 
A. Krypton Laser, B. Nd – YAG Laser, C. Argon Laser, D. CO2 Laser
B: Nd – YAG Laser
Answer: B: Nd – YAG Laser 
Explanation: Thin after cataract can be cleared centrally by Nd : YAG laser capsulotomy.