External-route microsurgery for rhegmatogenous retinal detachment in vitrectomized eyes

Abstract

Objective To evaluate the effects of external-route microsurgery for the treatment of rhegmatogenous retinal detachment in selected eyes which had undergone vitrectomy.Methods A retrospective observational case series of 23 cases(23 eyes)had undergone vitrectomy as the first surgery for the treatment of various vitroretinal diseases.After the failure of the first surgery,external-route microsurgery was performed for the treatment of rhegmatogenous retinal detachment between September 2010 and July 2013.Under surgical microscope,the encircling and its suture were preplaced,then drainage of subretinal fluid or aqueous fluid,retinal cryotherapy,buckling,examination of locating the roles,encircling and intraocular injection of expanding gases or gas were performed.The retinal reattachment rate,visual outcome and postoperative complications were investigated.Results After 3 to 12(4.57±l.70)months follow-up period,the retinal reattachment rate was 86.96％(20/ 23 cases).Further vitrectomy surgeries were needed for other 3 eyes.Macular epiretinal membrane happened postoperatively in one eye,complicated cataracts were found in two eyes.There were no other serious complications.Conclusions The external-route microsurgery is also suitable for rhegmatogenous retinal detachment in vitrectomized eyes which are PVR≤CI and the roles locate in the equator region or front even.This way is simple,convenient and effective.The rate of secondary vitrectomy also can be reduced. Key words: Rhegmatogenous retinal detachment; Vitrectomy; Microsurgery; Scleral buckling