The sclera is a tough structure of the eye. One can suffer from scleral inflammation. Various types of scleritis which can be: Episcleritis Scleritis Diffuse scleritis Nodular episcleritis Necrotizing scleritis Scleromalacia perforans First four manifestations of sclera can be manifestations of rheumatoid arthritis and last two can be rare complications of pterygium excision. When one uses more cautery one can get scleral perforation.
While operating squint especially during the recession of muscle. If the surgeon is not careful one may take a deep bite of the sclera and may perforate it. Scleral perforation can occur as a rare complication of pterygium and also ocular trauma and gas gangrene.
