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  • Title: Iris-fixated phakic intraocular lens implantation to correct myopia and a predictive model of endothelial cell loss.
    Author: Bouheraoua N, Bonnet C, Labbé A, Sandali O, Lecuen N, Ameline B, Borderie V, Laroche L.
    Journal: J Cataract Refract Surg; 2015 Nov; 41(11):2450-7. PubMed ID: 26703496.
    Abstract:
    PURPOSE: To report long-term results of Artisan phakic intraocular lens (pIOL) to correct myopia and to propose a model predicting endothelial cell loss after pIOL implantation. SETTING: Quinze-Vingts National Ophthalmology Hospital, Paris, France. DESIGN: Retrospective, interventional case series. METHODS: Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and central endothelial cell count (ECC) were determined before and at yearly intervals up to 5 years after pIOL implantation. Linear model analysis was performed to present a model that describes endothelial cell loss as a linear decrease and an additional decrease depending on postoperative loss. RESULTS: A total of 49 patients (68 eyes) implanted with pIOLs from January 2000 to January 2009 were evaluated. The mean preoperative and final spherical equivalent (SE) were -13 ± 4.10 and -0.75 ± 0.74 diopters (D), respectively. The mean preoperative and final central ECC were 2629 ± 366 and 2250 ± 454 cells/mm(2), respectively. There were no intraoperative complications for any of the eyes. One eye required surgery for repositioning the pIOL, and 1 eye required pIOL exchange for postoperative refractive error. The model predicted that for patients with preoperative ECC of 3000, 2500, and 2000 cells/mm(2), a critical ECC of 1500 cells/mm(2) will be reached at 39, 28, and 15 years after implantation, respectively. CONCLUSIONS: Implantation of the pIOL was an effective and stable procedure after 5 years of follow-up. The presented model predicted EC loss after pIOL implantation, which can assist ophthalmologists in patient selection and follow-up. FINANCIAL DISCLOSURE: The authors report no conflict of interest.
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