Abstract
Purpose: :
Diabetic macular edema was one of the most common cause that bring out visual loss in patients with diabetic retinopathy. Grid laser photocoagulation has been regarded standard treatment of focal diabetic macular edema, but not effective in case of diffuse macular edema. Vitrectomy was effective to decrease macular edema in patients with diffuse macular edema, but not effective improving visual outcome. The purpose of this study was to investigate internal limiting membrane peeling with vitrectomy was more effective than vitrectomy only.
Methods: :
16 eyes who were diagnosed by diabetic macular edema, vitrectomy only was 10 eyes and internal limiting membrane peeling with vitrectomy was done with 6 eyes. Best corrected visual acuity was checked 1 day before operation and 4 months after operation by logMAR. Macular center thickness was checked 1 day before operation and 1 month after operation by optical coherence tomography. And postoperative complicaton was investigated 4 months after operation.
Results: :
The mean value of preoperative and postoperative best corrected visual acuity (logMAR) of vitrectomy only group were each 0.13±0.04, 0.12±0.03, and vitrectomy with peeling of internal limiting membrane were each 0.15±0.09, 0.14±0.06, there were no statistical difference between two groups. The mean value of preoperative and postoperative macular center thickness of only vitrectomy were each 509.50±36.77, 332.60±91.73, vitrectomy with peeling of internal limiting membrane were each 516.17±55.43, 333.83±51.64, there were no statistical difference between two groups. 3 eyes in vitrectomy only, 2 eyes in vitrectomy with peeling of internal limiting membrane were decreased postoperative visual acuity, and postoperative complication in vitrectomy only was vitreous hemorrhage (3 eyes) and tractional retinal detachment (1 eye), vitreous hemorrhage were noted vitrectomy with peeling of internal limiting membrane (2 eyes).
Conclusions: :
Vitrectomy with peeling of internal limiting membrane was not effective than vitrectomy only in decresing macular edema and best corrected visual acuity. We thought that to finding precise effectiveness of vitrectomy with peeling of internal limiting membrane was needed more cases and follow–up period.
Keywords: macula/fovea • vitreous • diabetic retinopathy