A donor corneal patch graft for an incompetent scleral flap following trabeculectomy.

Prolonged postoperative hypotony may complicate filtration surgery, especially in conjunction with mitomycin-C. Incompetence of the scleral flap is one of the etiologic factors of hypotony. A persistent leak from an incompetent or traumatized scleral flap may necessitate surgical intervention, including patching techniques. To the best of the authors' knowledge, the following is the first report on using a partial-thickness corneal allograft as a patch for an incompetent and leaking scleral flap.