<prompt> Which morphological type of cataract is most visually handicapping?CoicalNuclearPosterior subcapsularZonular  <response>: Cupuliform Posterior subcapsular cataract lies right in the pathway of the asil rays and thus causes an early loss of visual acuity. Ref: Parsons 21ste p.258, 260; Khurana 7the p.194 4the p.177. 