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Long-term outcome after vitrectomy for diabetic macular edema
Martina T Kralinger1, Markus Pedri, Franz Kralinger
1Department of Ophthalmology, University of Innsbruck, Medical School, Innsbruck, Austria. martina.kralinger@uibk.ac.at
Summary
Vitrectomy can improve vision in patients with persistent diabetic macular edema after laser treatment. This surgical option offers a significant benefit for vision restoration in challenging cases.
Area of Science:
- Ophthalmology
- Retinal Surgery
Background:
- Diabetic macular edema (DME) is a common complication of diabetes affecting vision.
- Laser photocoagulation is a standard treatment for DME, but some cases persist.
Purpose of the Study:
- To evaluate the effectiveness of vitrectomy in eyes with persistent diabetic macular edema after prior laser treatment.
Main Methods:
- Retrospective case series of 66 patients (69 eyes) with DME treated with pars plana vitrectomy.
- Vitrectomy included posterior hyaloid removal and, in 74% of cases, inner limiting membrane removal.
- Patients had previously undergone laser coagulation as per the Early Treatment Diabetic Retinopathy Study guidelines.
Main Results:
- Mean best-corrected visual acuity improved significantly from 20/320 to 20/80 (p < 0.0001).
- Macular edema resolved in 90% of eyes, with only 10% showing persistent edema.
- Long-term follow-up (mean 55 months) demonstrated sustained visual improvement.
Conclusions:
- Vitrectomy is a viable therapeutic option for persistent diabetic macular edema unresponsive to laser photocoagulation.
- The surgical intervention offers significant visual acuity gains and edema resolution.
