Fig. 1

Schematic diagram and photographs taken during the surgical process. a, c The necrotic stroma was excised during the preparation of recipient bed. b, d The autologous patch was peeled off from the surrounding intact stroma. Noticed the prolapsed iris through the perforation (the white arrow). e, g The autologous patch (the grey arrows) was flipped over to cover the perforation site and was secured by interrupted 10/0 nylon sutures. f, h The anterior lamellar graft was sutured in place in the end