Nonpenetrating filtration surgery for glaucoma: Control by surgery only

Abstract

Nonpenetrating filtration surgery in eyes with POAG was more rewarding in untreated patients than in medically treated patients. To control IOP without medication, revision of the filtration site is feasible and needed in the medium and long term.

Three-year canaloplasty outcomes for the treatment of open-angle glaucoma: European study results

“…However, the distal collector system may have a better chance of survival if intervention is undertaken earlier in the disease process, before the outflow system collapses or before chronic topical medical therapy negatively impacts the tissues [28,29]. The excellent safety profile of canaloplasty or other non-penetrating surgery may make such procedures an earlier option in many instances, such as in younger patients where cataract formation is of concern, where medical therapy has proven insufficient, or the conjunctiva is not suitable for bleb formation.…”

A comparison of the intraocular pressure-lowering effect and safety of viscocanalostomy and trabeculectomy with mitomycin C in bilateral open-angle glaucoma

“…Significantly fewer eyes treated with 364 Dahan and Drusedau demonstrated that the non-penetrating surgery in eyes previously treated was 4.7 times less efficacious than in untreated eyes [5]. Sunaric-Mégevand and Leuenberger conducted a prospective study on a consecutive series of 67 eyes of 67 patients with preoperative maximal tolerance medical therapy, and reported a 88% overall success rate and a 68% complete success rate at 1 year [22].…”

Control of intraocular pressure after deep sclerectomy

“…In many published series postoperative goniopuncture is performed with a Nd : YAG laser which transform a nonpenetrating operation to a penetrating one. [15][16][17][18][19][20][21] A few prospective studies comparing standard trabeculectomy and NPT have been published. In prospective randomised clinical trials El-Sayyad et al 3 and Lachkar et al 22 randomly assigned patients to receive deep sclerectomy in one eye and trabeculectomy on the other eye.…”