Résumé
Objective To describe the clinical features and observe the effect of vitrectomy on traumatic avulsion of vitreous base with giant retinal dialysis.Methods Seven cases with giant retinal dialysis(rang 120～150?) secondary to traumatic avulsion of vitreous base and PVR grade B to C 3 were retrospectively reviewed.All eyes had recieved vitrectomy,scleral buckle and lenses removed,and six eyeballs underwent postoperative sequential fluid-gas exchange.Results In most cases,the dialyses and avulsed vitreous base developed in the temponate quadrants and complicated lenses dislocation,pupilloparalysis,and vitreous hemorrhage.All cases attained success after disappearance of the intraocular tamponate.The major complication was elevated intraocular pressure,which was transient.Conclusions Giant retinal dialysis may result from traumatic avulsion of vitreous base.These dialysis often become clinical manifestation for several days or longer following ocular contusion.Vitrectomy is a very effective management for these cases.