Bleb survival in subscleral trabeculectomy

Abstract

Bleb survival means success of SST so, Proper patient selection, preoperative assessment, intraoperative technique and postoperative care all of these play a very important role in bleb survival and hence in the out coming result of glaucoma filtering surgery. One of The most important interventions to prevent bleb failure is appropriate patient selection for trabeculectomy and preoperative selection of antimetabolite for higher-risk cases. The decision to proceed with glaucoma surgery must include an evaluation of risk factors other than IOP alone; those were described in the major recent randomized controlled trials of glaucoma treatment such as the age of the patient, race , cupto- disc ratio , uveitis, neovascularization and cataract surgery. The use of anti-fibrotic agents in filtering procedures is associated with a higher success but also with a higher complication rate (hypotony due to over-filtration, bleb leak, and ocular infection). For this reason an individualized