Histopathologic Change and Clinical Use of Glycerin-stored Corneosclera

Corneoscleras were stored in 4 degrees C, 98% glycerin and were examined histologically at various storage periods. There were no remarkable pathologic changes in the stainability or arrangement of collagen fibers in stored corneoscleras from one month to 33 months. 12 eyes of 12 patients underwent tectonic or therapeutic keratoplasty with them. The integrity of the globe was maintained in all cases and vision improved in three cases without the second operation. One case achieved visual improvement by optical keratoplasty. In four cases, the vision may be improved by the second operation, such as optical keratoplasty and keratoprosthesis.