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  • Title: Unsutured posterior chamber lens implantation in eyes requiring lens extraction at the time of pars plana vitrectomy with silicone oil tamponade.
    Author: Balaggan KS, Dong B, Tanner V, Poon WK, Williamson TH.
    Journal: J Cataract Refract Surg; 2004 Jan; 30(1):161-7. PubMed ID: 14967285.
    Abstract:
    PURPOSE: To describe a technique for the subsequent placement of an unsutured posterior chamber lens intraocular lens (PC IOL) in eyes requiring cataract or clear lens extraction at the time of pars plana vitrectomy (PPV) with silicone oil tamponade. SETTING: Department of Vitreoretinal Surgery, St. Thomas' Hospital, London, United Kingdom. METHODS: This retrospective review comprised 25 patients who had phacoemulsification to allow an adequate intraoperative retinal view or adequate access to anterior retinal pathology. Anterior and posterior capsulorhexes were combined with an inferior radial capsulectomy to fashion a keyhole-shaped capsule. RESULTS: The mean follow-up was 15.9 months +/- 8.0 (SD) (range 3 to 34 months). Silicone oil was removed and IOLs were implanted in 15 eyes (60.0%). Posterior chamber IOLs were implanted in 10 eyes (66.7% of those receiving an IOL), and anterior chamber AC IOLs were implanted in 5 eyes (33.3%). Nine of the 10 eyes receiving a PC IOL (60.0% of all IOLs) had uneventful surgery. In 1 eye, the PC IOL subluxated inferiorly. Two eyes developed pupil block that required further surgery. CONCLUSIONS: This technique allowed PC IOL implantation in 60% of eyes that received an IOL, showing that in selected patients who require simultaneous lens extraction and silicone oil tamponade, a keyhole-shaped capsulectomy provides for subsequent unsutured PC IOL insertion. The pupil block rate of 8% compares favorably with published rates. Refining the technique may allow it to be used in a greater proportion of eyes that would benefit from safe refractive correction.
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