Implantation of an iris-fixated phakic intraocular lens for the correction of hyperopia: 15-year follow-up

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Abstract

Purpose:To assess the predictability, efficacy, stability, and safety of implantation of an Artisan iris-fixated phakic intraocular lens (IF-pIOL) for the correction of hyperopia with a follow-up of up to 15 years.Setting:Leiden University Medical Center, the Netherlands.Methods:Patients operated by a single surgeon up to 2007 were identified, and data on refraction, corrected distance visual acuity (CDVA), uncorrected distance visual acuity, endothelial cell (EC) density, and complications were collected.Results:A total of 61 eyes (32 patients) were analysed. The mean spherical equivalent decreased from +6.43 ± 1.78 diopters (D) preimplantation to -0.22 ± 0.57 D at 1 year postimplantation and remained stable throughout follow-up. A stable CDVA with safety indices ranging from 0.91 to 1.10 and efficacy indices between 0.43 and 0.86 were observed. Follow-up time had a significant effect on EC density with an estimated annual decline of 58 cells/mm2after IF-pIOL implantation. IF-pIOL explantation was performed in a 10 eyes (16.4%) after 8.13 ± 5.11 years. The main reason for IF-pIOL explantation was EC loss (4 eyes [6.6%]). Pigment dispersion was the most encountered complication, observed in 9 eyes (14.8%).Conclusions:Visual and refractive results after implantation of an IF-pIOL to correct hyperopia show favorable and stable results with long-term follow-up. Lifelong monitoring of EC counts is mandatory. Pigment dispersion might be a problem in hyperopic eyes implanted with an IF-pIOL; a shallower anterior chamber depth and a convex iris configuration might be predisposing factors.

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Van Rijn, G. A., Gaurisankar, Z. S., Saxena, R., Gibbes, D., Jongman, H. P., Haasnoot, G. W., … Luyten, G. P. M. (2021). Implantation of an iris-fixated phakic intraocular lens for the correction of hyperopia: 15-year follow-up. Journal of Cataract and Refractive Surgery, 47(6), 748–758. https://doi.org/10.1097/j.jcrs.0000000000000532

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