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Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism

BACKGROUND: To compare the outcomes of a toric phakic intraocular lens (PIOL) and a spherical PIOL combined with astigmatic keratotomy (AK) for the correction of high myopic astigmatism. METHODS: This study enrolled patients with high myopic astigmatism, including 30 eyes (22 patients) that received...

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Autores principales: Zheng, Lin-Yan, Zhu, Shuang-Qian, Su, Yan-Feng, Zou, Hu-Yong, Wang, Qin-Mei, Yu, A-Yong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561629/
https://www.ncbi.nlm.nih.gov/pubmed/28828390
http://dx.doi.org/10.1186/s40662-017-0085-7
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author Zheng, Lin-Yan
Zhu, Shuang-Qian
Su, Yan-Feng
Zou, Hu-Yong
Wang, Qin-Mei
Yu, A-Yong
author_facet Zheng, Lin-Yan
Zhu, Shuang-Qian
Su, Yan-Feng
Zou, Hu-Yong
Wang, Qin-Mei
Yu, A-Yong
author_sort Zheng, Lin-Yan
collection PubMed
description BACKGROUND: To compare the outcomes of a toric phakic intraocular lens (PIOL) and a spherical PIOL combined with astigmatic keratotomy (AK) for the correction of high myopic astigmatism. METHODS: This study enrolled patients with high myopic astigmatism, including 30 eyes (22 patients) that received a toric PIOL implantation (TICL group), and 32 eyes (24 patients) that received combined AK and a spherical PIOL implantation (AK+ ICL group). The outcomes were compared between the two groups before surgery, and at the following time points after surgery: 1 week, 1, 3, 6 months, and 1, 2 years. RESULTS: Preoperatively, the mean manifest spherical equivalent (SE) was −14.14 ± 2.12 D in the TICL group and −14.83 ± 2.79 D in the AK + ICL group (P = 0.28), and the mean manifest refractive cylinder, −2.87 ± 1.09 D and −2.58 ± 0.85 D, respectively (P = 0.28). Two years postoperatively, the mean safety index was 1.53 ± 0.55 in the TICL group and 1.60 ± 0.70 in the AK + ICL group (P = 1.00), and the mean efficacy index, 1.18 ± 0.45 and 1.38 ± 0.52, respectively (P = 0.86). The mean manifest refractive cylinder correction was 1.94 ± 1.07 D in the TICL group and 1.39 ± 0.71 D in the AK + ICL group (P = 0.02). The mean changes in SE and refractive cylinder from 1 week to 2 years were less than 0.50 D in both groups. CONCLUSIONS: Both TICL implantation and AK + ICL implantation are a good alternative for correction of astigmatism in addition to high myopia. TICL implantation has better predictability in correction of high myopic astigmatism. TRIAL REGISTRATION: NCT03202485
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spelling pubmed-55616292017-08-21 Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism Zheng, Lin-Yan Zhu, Shuang-Qian Su, Yan-Feng Zou, Hu-Yong Wang, Qin-Mei Yu, A-Yong Eye Vis (Lond) Research BACKGROUND: To compare the outcomes of a toric phakic intraocular lens (PIOL) and a spherical PIOL combined with astigmatic keratotomy (AK) for the correction of high myopic astigmatism. METHODS: This study enrolled patients with high myopic astigmatism, including 30 eyes (22 patients) that received a toric PIOL implantation (TICL group), and 32 eyes (24 patients) that received combined AK and a spherical PIOL implantation (AK+ ICL group). The outcomes were compared between the two groups before surgery, and at the following time points after surgery: 1 week, 1, 3, 6 months, and 1, 2 years. RESULTS: Preoperatively, the mean manifest spherical equivalent (SE) was −14.14 ± 2.12 D in the TICL group and −14.83 ± 2.79 D in the AK + ICL group (P = 0.28), and the mean manifest refractive cylinder, −2.87 ± 1.09 D and −2.58 ± 0.85 D, respectively (P = 0.28). Two years postoperatively, the mean safety index was 1.53 ± 0.55 in the TICL group and 1.60 ± 0.70 in the AK + ICL group (P = 1.00), and the mean efficacy index, 1.18 ± 0.45 and 1.38 ± 0.52, respectively (P = 0.86). The mean manifest refractive cylinder correction was 1.94 ± 1.07 D in the TICL group and 1.39 ± 0.71 D in the AK + ICL group (P = 0.02). The mean changes in SE and refractive cylinder from 1 week to 2 years were less than 0.50 D in both groups. CONCLUSIONS: Both TICL implantation and AK + ICL implantation are a good alternative for correction of astigmatism in addition to high myopia. TICL implantation has better predictability in correction of high myopic astigmatism. TRIAL REGISTRATION: NCT03202485 BioMed Central 2017-08-18 /pmc/articles/PMC5561629/ /pubmed/28828390 http://dx.doi.org/10.1186/s40662-017-0085-7 Text en © The Author(s). 2017 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
spellingShingle Research
Zheng, Lin-Yan
Zhu, Shuang-Qian
Su, Yan-Feng
Zou, Hu-Yong
Wang, Qin-Mei
Yu, A-Yong
Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title_full Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title_fullStr Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title_full_unstemmed Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title_short Comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
title_sort comparison between toric and spherical phakic intraocular lenses combined with astigmatic keratotomy for high myopic astigmatism
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5561629/
https://www.ncbi.nlm.nih.gov/pubmed/28828390
http://dx.doi.org/10.1186/s40662-017-0085-7
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