Document Detail

Long-term follow-up of primary glaucoma surgery with Ahmed glaucoma valve implant versus trabeculectomy.
MedLine Citation:
PMID:  12967799     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare the long-term results of trabeculectomy and Ahmed glaucoma valve implant in the initial surgical management of primary open- and closed-angle glaucoma. DESIGN: Randomized controlled clinical trial. METHODS: One eye each of consecutive patients with primary glaucoma and without prior intraocular surgery was randomized to receive either trabeculectomy or the Ahmed implant. Large university-affiliated eye hospital in Columbo, Sri Lanka. RESULTS: Of 123 patients, 64 were randomized to trabeculectomy and 59 to the Ahmed implant. With a mean follow-up of 31 months, the trabeculectomy group had statistically lower intraocular pressures (IOP) during the first postoperative year. After the first year, the IOPs were comparable. No statistically significant differences between groups were noted for postoperative visual acuity, visual field, anterior chamber depth, and short-term or long-term complications. Adjunctive medication requirement was comparable for both groups. The cumulative probabilities of success (IOP <21 mm Hg and at least 15% reduction in IOP from preoperative levels) at the final follow-up period (months, 41-52) were 68.1% for trabeculectomy and 69.8% for Ahmed implant (P =.86). CONCLUSIONS: Lower IOPs were noted for the trabeculectomy group during the first year. With longer follow-up, the IOPs and the cumulative probabilities of success were comparable between the two groups.
M Roy Wilson; Upali Mendis; Amit Paliwal; Vera Haynatzka
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  American journal of ophthalmology     Volume:  136     ISSN:  0002-9394     ISO Abbreviation:  Am. J. Ophthalmol.     Publication Date:  2003 Sep 
Date Detail:
Created Date:  2003-09-11     Completed Date:  2003-09-22     Revised Date:  2009-11-03    
Medline Journal Info:
Nlm Unique ID:  0370500     Medline TA:  Am J Ophthalmol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  464-70     Citation Subset:  AIM; IM    
Creighton University School of Medicine, Omaha, Nebraska, Omaha 68178, USA.
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MeSH Terms
Aged, 80 and over
Follow-Up Studies
Glaucoma Drainage Implants*
Glaucoma, Angle-Closure / surgery*
Glaucoma, Open-Angle / surgery*
Intraocular Pressure
Middle Aged
Postoperative Complications
Prosthesis Implantation
Treatment Outcome
Visual Acuity
Visual Fields

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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