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Pars plana vitrectomy for chronic pseudophakic cystoid macular edema
J W Harbour1, W E Smiddy, P E Rubsamen
1Department of Ophthalmology, University of Miami School of Medicine, Bascom Palmer Eye Institute, Florida, USA.
American Journal of Ophthalmology
|September 1, 1995
Summary
Pars plana vitrectomy effectively treated chronic pseudophakic cystoid macular edema unresponsive to medical therapy. This surgical intervention improved visual acuity in all patients by removing vitreous adhesions.
Area of Science:
- Ophthalmology
- Retina and Vitreous Surgery
Background:
- Chronic pseudophakic cystoid macular edema (CME) can significantly impair vision.
- Medical therapies often fail to resolve persistent CME.
- Vitreous adhesions to anterior segment structures are implicated in some cases of refractory CME.
Purpose of the Study:
- To evaluate the efficacy of pars plana vitrectomy (PPV) for chronic pseudophakic CME.
- To assess visual acuity outcomes after PPV in patients unresponsive to medical treatment.
Main Methods:
- Retrospective review of 24 consecutive patients with chronic pseudophakic CME undergoing PPV.
- Patients had failed medical therapy and presented with vitreous adhesions or iris capture.
- Preoperative and postoperative visual acuity were analyzed.
Main Results:
- All 24 patients experienced improved visual acuity after PPV (mean improvement: 4.7 Snellen lines).
- Mean best-corrected visual acuity improved from 20/190 preoperatively to 20/52 postoperatively (P < .0001).
- No significant difference in outcomes was noted based on intraocular lens position or time from cataract surgery.
Conclusions:
- Pars plana vitrectomy is an effective treatment for chronic pseudophakic CME with vitreous adhesions.
- PPV can restore visual acuity in cases refractory to medical management.
- Removal of vitreous adhesions via PPV offers a viable surgical option for vision restoration.