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  • Title: Vitrectomy for traction macular edema.
    Author: Pournaras CJ, Kapetanios AD, Donati G.
    Journal: Doc Ophthalmol; 1999; 97(3-4):439-47. PubMed ID: 10896362.
    Abstract:
    PURPOSE: Traction macular edema may develop through contraction of macular epiretinal membranes (ERM), or due to persistent vitreomacular traction during the evolution of vitreomacular traction syndrome (VMS). The purpose of this retrospective study was to determine the effect of vitreous surgery and the release of the vitreomacular traction or the removal of epiretinal membranes, on the evolution of traction induced macular edema. MATERIAL AND METHODS: Fourteen eyes from 14 patients presenting with idiopathic or secondary epiretinal membranes, and 11 eyes from 10 patients presenting with vitreomacular traction syndrome, underwent vitrectomy for reduced vision and cystoid macular edema, identified by slit-lamp examination and fluorescein angiography. No coexistent ocular conditions that might have caused macular traction were present. History, preoperative eye examination, operative findings, postoperative course and final examination as well as pre- and postoperative fluorescein angiography were reviewed. RESULTS: In the ERM group, cystoid macular edema disappeared in all cases during the postoperative period and the mean visual acuity (VA) at the end of the follow-up (0.48 +/- 0.23) significantly increased compared to the preoperative one (0.29 +/- 0.2) (p=0.004). In the group of patients suffering from VMS, the posterior vitreous traction on the macula was released and macular edema disappeared in all cases but one. The mean v.a. at the end of the follow-up (0.42 +/- 0.24) significantly increased compared to the preoperative one (0.18 +/- 0.1) (p=0.01). Complications included intraoperative small petechias and postoperative progressive nuclear sclerosis, retinal detachment and retinal pigment epitheliopathy. CONCLUSIONS: Cystoid macular edema may develop secondary to vitreomacular traction syndrome or epiretinal membrane contraction. Vitrectomy is effective in releasing macular traction which, in turn, may induce a decrease of the macular edema with improvement of visual acuity.
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