<prompt> Which laser is used for Posterior capsular cataractKryptonND-YAGArgonDiode laser  <response>: Ans. b ND-YAGRef: A.K. Khurana 6th ed. 187-89 ND-YAG Neodymium- Yttrium-Aluminium-Garnet laser is used for posterior capsulotomy in after cataract. Diode, Argon and Krypton laser is used for retinal photocoagulation. 