Spontaneous dislocation into the vitreous of a poly(methyl methacrylate) disc lens 9 years after surgery

A 76-year-old woman had sudden visual loss 9 years after an extracapsular c ataract extraction with implantation of a poly(methyl methacrylate) disc in traocular lens (IOL) in the capsular bag. Slitlamp examination showed the d isc IOL had luxated into the vitreous through a linear inferior opening in the capsular bag; the IOL lay on the retinal,A pars plana vitrectomy was pe rformed. The vitreous cavity was filled with perfluorocarbon liquid, floati ng the IOL to behind the iris. The IOL was removed through a limbal incisio n, then another type of IOL was implanted in the ciliary sulcus using trans scleral fixation. Thirty days after surgery, best corrected visual acuity ( BCVA) was 20/20. At 2 months, total retinal detachment appeared with a larg e superior retinal dialysis. Another pars plana vitrectomy was performed an d the scleral-fixated IOL removed through a limbal incision, internal gas t amponade was used. The eye was left aphakic. Final BCVA was 20/25.