Abstract
Objective To observe the effect of pars plana vitrectomy (PPV) with epiretinal membrane peeling (ERMP) and (or) internal limiting membrane peeling (ILMP) and silicone oil tamponade for highly myopic macular hole retinal detachment (MHRD) with posterior staphyloma.Methods Eighty-five highly myopic MHRD patients (85 eyes) were enrolled in this study.All the patients were examined for corrected visual acuity (CVA),slit lamp microscope and preset lens,indirect ophthalmoscope,A/B ultrasound,optical coherence tomography (OCT) and intraocular pressure examination.The average axial length was (29.1± 1.8) mm.There were 24 eyes with diffuse choroid atrophy and 61 eyes with partial choroid atrophy.The CVA was converted into a logarithm of the minimal angle of resolution (logMAR) for statistical analysis.The average logMAR CVA was 1.93± 0.37.All the patients were treated with PPV and triamcinolone acetonide (TA) or indocyanine green (ICG) assisted ILMP and (or) ERMP and silicone oil tamponade.TA assisted ERMP was performed in 21 eyes; with ICG assisted ILMP in 56 eyes and TA assisted ILMP in eight eyes.The duration of silicone oil tamponade was (6.2± 1.6) months.CVA,retina and macular hole status and complications were observed postoperatively.Differences between preoperative and postoperative CVA were evaluated by the t test and correlation analysis.Multiple logistic regression analysis was performed to assess the influence of individual preoperative factors on the initial anatomical success.Differences in the macular hole closure rate between eyes with or without macular schisis were evaluated for statistical significance using corrected chi square.Results The mean logMAR CVA was 1.34±0.48 after surgery,which significantly improved compared to that before surgery (t=39.38,P＜0.01).The CVA after surgery was independent of axial length (r=0.142,P＞0.05),choroidatrophy(t=0.23,-0.165,P＞0.05) and macular hole closure (t=0.12,-0.005,P＞0.05).The retina reattached in 79 eyes (92.9 ％) and recurrence of retinal detachment occurred in six eyes (7.1 ％).Multiple logistic regression analysis indicated that recurrence of retinal detachment was independent of choroid detachment,proliferative vitroretinopathy,axial length,choroid atrophy and IL MP (OR=1.428,5.039,0.815,2.578,0.432; P＞0.05).Of these 85 eyes,macular hole closed in ten eyes (11.8％),macular hole did not close in 75 eyes (88.2％).There were 24 eyes (28.2％) experienced high intraocular pressure during the first 2 weeks after surgery,allof them were under control with drugs.There were 12 eyes (14.1％) presented with high intraocular pressure before the silicone oil removal,all of them were under control only by silicone oil removal.Conclusion For the treatment of MHRD with posterior staphyloma,PPV combined with ERMP and (or) IL MP and silicone oil tamponade show a high retinal reattachment rate. Key words: Myopia, degenerative/surgery; Retinal detachment/surgery; Retinal perforations/surgery; Vitrectomy; Silicone oils/therapeutic use
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