<prompt> The most frequent cataract type seen in adult retinitis pigmentosa patient isPSCAnterior polarCorticalMixed  <response>: Ans. a PSCRef: Yanoff and Duker 2e, p. 818; Kanski 7e, p. 654 Retinitis pigmentosa is associated with posterior subcapsular cataract PSCRetinal pigment degeneration such as retinitis pigmentosa, Ushers syndrome and gyrate atrophy are associated with cataract, which are usually subscapular opacities. 