J Korean Ophthalmol Soc.  2011 Jan;52(1):46-52. 10.3341/jkos.2011.52.1.46.

Pars Plana Vitrectomy and Ahmed Valve Implantation for Intractable Glaucoma Comorbid With Retinal Disorders

• Lee CM
• Kim EA
• Cho YW

• KMID: 2214137
• DOI: http://doi.org/10.3341/jkos.2011.52.1.46

Abstract

PURPOSE
To evaluate the efficacy and long-term prognosis of pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders.
METHODS
A retrospective review of 34 eyes of 30 patients receiving pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders was performed. Preoperative and postoperative intraocular pressure (IOP) and visual acuity, the usage of IOP-lowering medications and postoperative complications, and surgical success rate were evaluated.
RESULTS
IOP and the number of IOP-lowering medications showed a significant decrease after pars plana vitrectomy and Ahmed valve implantation, as compared to before surgery (p < 0.001). The success rate was 88%, 88%, 84% and 85% postoperatively at 1 month, 6 months, 1 year and 3 years respectively. The mean follow up period was 24.21 +/- 14.99 months. Complications related to surgery included hyphema in 2 eyes, recurrent corneal epithelial erosion and defect in 2 eyes, corneal ulcer in 2 eyes and vitreous hemorrhage in 4 eyes. Visual acuity improved in 14 eyes (41.1%), no changes in 13 eyes (38.2%) and decreased in 7 eyes (20.6%).
CONCLUSIONS
Pars plana vitrectomy and Ahmed valve implantation for intractable glaucoma comorbid with retinal disorders show long-term efficacy in lowering IOP.

Keyword

Ahmed valve implantation; Intractable glaucoma; Pars plana vitrectomy

MeSH Terms

Corneal Ulcer
Eye
Follow-Up Studies
Glaucoma
Humans
Hyphema
Intraocular Pressure
Postoperative Complications
Prognosis
Retinaldehyde
Retrospective Studies
Visual Acuity
Vitrectomy
Vitreous Hemorrhage
Retinaldehyde

Reference

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