Abstract
Objective It is a common phenomenon that a lot of pigmented debris disperses into vitreous cavity through retinal breaks during the cryotherapy or location of retinal breaks while the external approach microsurgery for rhegmatogenous retinal detachment (RRD) is performed.The study was designed for observing the surgical outcomes of this complication.Methods A consecutive thirty-eight patients (39eyes) with RRD,which were found intravitreal dispersion of retinal pigment epithelium cells during external approach mierosurgery of retinal detachment,were retrospectively analyzed.All of them were primary RRD and proliferative vitreoretinopathy (PVR) was classified equal to or under B.The numbers of average retinal breaks were 2.67.The size of the retinal break ranged from 1/7DD to 1.5 clock hour.The scleral buckling was performed in 11 eyes,and the circling and buckling in 28 eyes.Results The following-up times were 6 months at least.The retinal pigment epithelium cells of intravitreal dispersion gradually decreased and faded away.Retinal reattachment was achieved in 38 eyes (96.7%) after the primary surgery.A new retinal break was formed in one case and caused retinal redetachment.After vitreous surgery,this case got retinal reattachment.The final rate of reattachment was 100%.The excessive cryotherapy and severe PVR were not occurred.Conclusion As long as the holes or tears are closed effectively,the intravitreal dispersion of retinal pigment epithelium cells during external approach microsurgery of retinal detachment doesn't cause PVR develop or aggravate.The surgical outcomes are excellent. Key words: Retinal detachment; Microsurgery; Retinal pigment epithelium cell; Vitreous; Proliferative vitreoretinopathy
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