<prompt> About retinitis pigmentosa, all are true EXCEPT: September 2012Ring scotomaCentral scotomaWaxy pallor of discBone spicule pigmentation in retina  <response>: Ans. B i.e. Central scotoma Retinitis pigmentosa Feature: Loss of visual acuity Microscopy: Irregular black deposits of clumped pigment in the peripheral retina Bone spicules 