Spontaneous posterior bulbar perforation of congenital scleral coloboma and its surgical treatment: a case report.

A 35-year-old male presented with abrupt hypotonic oculopathy caused by a spontaneous bulbar perforation, due to a scleral defect in the equatorial area of the nasal side of the left eye. The scleral defect was surgically repaired using lyophilized homologous dura mater encephali and fibrin glue (Tisseel). Highly satisfactory results were obtained. The pathogenesis of this scleral defect was suspected to involve complex factors related to abnormal retinal development and abnormal ocular muscles. Such a case has not been reported previously.