Figure 1: Pre- and postoperative stages of penetrating keratoplasty (PK) of the presenting case. The right (A) and left eye (B) revealed a congenital corneal opacity with scleral tissue extension in the center and the periphery of the cornea, and discreet limbal vascularisation. The histological findings confirmed sclerocornea. The corneal grafts were completely clear after PK at 4 days on the right eye (C) and at 5 months on the left eye (D). In the left eye, the sutures had already been removed. After 3 years, both eyes (E, F) showed a clear corneal transplant in the center.