Clinical investigation on combination silicone oil removal with cataract surgery after vitreoretinal surgery reserved lens for severe proliferative diabetive retinopathy

Abstract

Objective To evaluate long term visual outcome and complications of combination silicone oil removal with cataract surgery after vitreoretinal surgery reserved lens for severe proliferative diabetic retinopathy.Methord Retrospective series of clinical case studies about severe PDR.All 72cases 91 eyes of PDR patients were underwent 23G or 20G pars plana vitrectomy reserved lens,fibrovascular membranes peeling,triamcinolone acetonide use,fluid-air exchange or Perfluorodecalin use,interaocular laser,Sclera cryoablation and silicone oil tamponade,the lens is reserved in all eyes.When silicone oil was removed,phacoemulsification was combined at the same time.General material,preoperative and postoperative best corrected visual acuity and postoperative complications were recorded.Results The mean age of all patients was 54.35±7.20 yeas(range 39 to 70 years)and the postoperative follow-up time was 12 to 28 months.Time interval between VRS and silicone oil removal is 2.0～8.9 months,mean time 3.7±1.3 months;Anatomic retinal attachment was achieved in 88 eyes,Postoperatively,BCVA improved in 59 eyes (64.8％),remained unchanged in 23 eyes (25.3％) and declined in 9 eyes(9.9％).The postoperative complication incidence of diabetic optic neuropathy,Epiretinal membrane,recurrent RD,Secondary glaucoma,transient intraocular pressure rise,hypotony and vitreous hemorrhage was 35.2％,15.4％,4.4％,4.4％,9.9％,4.4％ and 3.3％ respectively.Conclusions In patients with silicone oil tamponade after vitrectomy reserved lens for severe proliferative diabetic retinopathy,silicone oil removal combined with phacoemulsification is safe and effective. Key words: Diabetic retinopathy; Vitreoretinal surgery; Silicone oil removal; Cataract surgery; Complications