<prompt> Most common type of scleritis isNon-necrotizingNecrotizingAnteriorPosterior  <response>: Scleritis can be classified as follows: I. Anterior scleritis 98 1. Non-necrotizing scleritis 85 a Diffuse b Nodular 2. Necrotizing scleritis 13 a with inflammation b without inflammation sclero malacia perforans II. Posterior scleritis 2 The most common form, anterior scleritis, is defined as scleral inflammation anterior to the extraocular recti muscles. Posterior scleritis is defined as involvement of the sclera posterior to the inseion of the rectus muscles. Ref. UGkhurana 4th edition Pg.129 