RT Journal Article
SR Electronic
T1 Supra-Tenon’s capsule placement of a single-plate Molteno implant
JF British Journal of Ophthalmology
JO Br J Ophthalmol
FD BMJ Publishing Group Ltd.
SP 669
OP 672
DO 10.1136/bjo.2007.115121
VO 92
IS 5
A1 J Freedman
A1 P Chamnongvongse
YR 2008
UL http://bjo.bmj.com/content/92/5/669.abstract
AB Aim: To describe clinical results of a new technique for inserting Molteno implants in a supra-Tenon’s capsule location.Design: Prospective interventional case study.Participants: 19 patients, 18 of whom had suffered previous filter or glaucoma implant failure. Seventeen had open-angle glaucoma, and two had neovascular glaucoma. Seventeen patients were black and two were Asian.Intervention: All patients underwent supra-Tenon’s capsule placement of a single-plate Molteno implant. Goldmann applanation tensions and Snellen visual acuities were determined before the operation and at the last follow-up visit. The numbers of preoperative and postoperative adjunctive drugs were compared before and after surgery.Main outcome measures: Success was defined as intraocular pressure ⩽18 mm Hg with or without anti-glaucoma drugs.Results: Mean age was 62 years. Mean pressure before and after surgery was 31 and 16 mm Hg, respectively. Mean follow-up was 22 months (range 12–48). Vision returned to within 2 lines of preoperative vision, except in one patient who lost light perception. Surgery was regarded as a failure in four patients, including both patients with neovascular glaucoma. The difference between the median number of drugs used before (three) and after (one) the operation was significant (p<0.001). Complications were minimal, characterised by small choroidal effusions in three patients; all resolved spontaneously.Conclusion: Supra-Tenon’s capsule placement of Molteno implants in eyes with previously failed glaucoma surgery is an effective method for controlling intraocular pressure.