Efficacy of vitrectomy for natural lens or intraocular lens dislocated into vitreous cavity combined with retinal detachment

Objective To investigate the results and complications of vitrectomy in the treatment of natural lens or intraocular lens dislocated into vitreous cavity combined with retinal detachment.Methods We retrospectively analyzed the clinical data of 26 eyes of 26 cases with natural lens or intraocular lens dislocated into vitreous cavity combined with retinal detachment who had undergone vitreoretinal surgery.Lens dislocation after blunt trauma was found in 7 eyes,and in other 19 eyes,natural lens or intraocular lens was dislocated during or after cataract surgery.The dislocated intraocular lens was removed through the limbal incision.The dislocated natural lens was removed by phacoemulsification in the vitreous cavity.The vitreous cavity was tamponaded with silicone oil in 14 eyes and C3F8 in other 12 eyes.16 eyes were treated with additional scleral buckling operation.The follow-up duration was 6-18 months,average (11.50 ±2.67) months.Results The dislocated natural lens and intraocular lens were all removed successfully in these 26 eyes.The total retinal reattachment was achieved in 23 eyes (88.46％),part reattachment was found in 2 eyes (7.69％),failure occurred in 1 eye (3.85％) due to severe proliferative vitreoretinopathy (PVR).The visual acuity was improved after operation in all eyes.Conclusion Vitrectomy for natural lens or intraocular lens dislocated into vitreous cavity combined with retinal detachment may achieve a high final retinal reattachment rate,but relatively bad functional results. Key words: Lens;  Lens, intraocular;  Dislocation;  Detachment, retinal;  Vitrectomy