Scleritis is inflammation of the sclera and is predominantly autoimmune. Corneal thinning, astigmatism and peripheral ulcerative keratitis are the common corneal changes following scleritis.
Scleritis can be anterior or posterior. Anterior scleritis is classified as diffuse or nodular, depending upon the clinical presentation. In 1976, Watson and colleagues described about 29% of anterior scleritis causing corneal changes predominantly involving the anterior and stromal layers of cornea. In 1974, Holt Wilson and Watson reported four cases of non-syphilitic deep nummular keratitis with