Scleral Allograft with Autologous Buccal Mucosal Transplantation for Tube Erosion Ocurred after Ahmed Glaucoma Valve Implant Surgery: Three Cases

ABSTRACT

After Drainage implant surgery, erosion of conjunctiva or cornea over tube can occur about 5%in late postoperative period. Scleral allograft for exposed tube should be used to prevent secondary infection. We report three glaucoma patients treated graft with autologous buccal mucosal transplantation for recurrent tube exposure. First case was a 68-year-old male patient with neovascular glaucoma due to central retinal vein occlusion. Second case was a 37-year-old female patient with pseudophakic glaucoma. Third case was a 70-year-old male patient with diabetic neovascular glaucoma. Ahmed glaucoma valve implant surgeries were done for three patients. For tube exposure, we used autologous buccal mucosal transplantation. There was no recurrent erosion and intraocular pressure was maintained well more than 6 months of follow-up. In cases for tube exposure, we introduce that autologous buccal mucosal transplantation can be used to treat tube exposure.