Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes

Erik L MertensMedipolis Eye Centre, Antwerp, BelgiumPurpose: The purpose of this study was to assess predictability, efficacy, safety and stability in patients who received a toric implantable collamer lens to correct moderate to high myopic astigmatism.Methods: Forty-three eyes of 23 patients under...

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Autor principal:	Erik L Mertens
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2011
Materias:	Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/3d3032e55ae04dcabd8eae527879cfc0
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spelling	oai:doaj.org-article:3d3032e55ae04dcabd8eae527879cfc02021-12-02T02:47:08ZToric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes1177-54671177-5483https://doaj.org/article/3d3032e55ae04dcabd8eae527879cfc02011-03-01T00:00:00Zhttp://www.dovepress.com/toric-phakic-implantable-collamer-lens-for-correction-of-astigmatism-1-a6683https://doaj.org/toc/1177-5467https://doaj.org/toc/1177-5483Erik L MertensMedipolis Eye Centre, Antwerp, BelgiumPurpose: The purpose of this study was to assess predictability, efficacy, safety and stability in patients who received a toric implantable collamer lens to correct moderate to high myopic astigmatism.Methods: Forty-three eyes of 23 patients underwent implantation of a toric implantable collamer lens (STAAR Surgical Inc) for astigmatism correction. Mean spherical refraction was &mdash;4.98 &plusmn; 3.49 diopters (D) (range: 0 to &mdash;13 D), and mean cylinder was &mdash;2.62 &plusmn; 0.97 D (range: &mdash;1.00 to &mdash;5.00 D). Main outcomes measures evaluated during a 12-month follow-up included uncorrected visual acuity (UCVA), refraction, best-corrected visual acuity (BCVA), vault, and adverse events.Results: At 12 months the mean Snellen decimal UCVA was 0.87 &plusmn; 0.27 and mean BCVA was 0.94 &plusmn; 0.21, with an efficacy index of 1.05. More than 60% of the eyes gained &ge;1 line of BCVA (17 eyes, safety index of 1.14). The treatment was highly predictable for spherical equivalent (r2 = 0.99) and astigmatic components: J0 (r2 = 0.99) and J45 (r2 = 0.90). The mean spherical equivalent dropped from &mdash;7.29 &plusmn; 3.4 D to &mdash;0.17 &plusmn; 0.40 D at 12 months. Of the attempted spherical equivalent, 76.7% of the eyes were within &plusmn;0.50 D and 97.7% eyes were within &plusmn;1.00 D, respectively. For J0 and J45, 97.7% and 83.7% were within &plusmn;0.50 D, respectively.Conclusion: The results of the present study support the safety, efficacy, and predictability of toric implantable collamer lens implantation to treat moderate to high myopic astigmatism.Keywords: phakic intraocular lens, toric implantable collamer lens, astigmatism Erik L MertensDove Medical PressarticleOphthalmologyRE1-994ENClinical Ophthalmology, Vol 2011, Iss default, Pp 369-375 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ophthalmology RE1-994
spellingShingle	Ophthalmology RE1-994 Erik L Mertens Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
description	Erik L MertensMedipolis Eye Centre, Antwerp, BelgiumPurpose: The purpose of this study was to assess predictability, efficacy, safety and stability in patients who received a toric implantable collamer lens to correct moderate to high myopic astigmatism.Methods: Forty-three eyes of 23 patients underwent implantation of a toric implantable collamer lens (STAAR Surgical Inc) for astigmatism correction. Mean spherical refraction was &mdash;4.98 &plusmn; 3.49 diopters (D) (range: 0 to &mdash;13 D), and mean cylinder was &mdash;2.62 &plusmn; 0.97 D (range: &mdash;1.00 to &mdash;5.00 D). Main outcomes measures evaluated during a 12-month follow-up included uncorrected visual acuity (UCVA), refraction, best-corrected visual acuity (BCVA), vault, and adverse events.Results: At 12 months the mean Snellen decimal UCVA was 0.87 &plusmn; 0.27 and mean BCVA was 0.94 &plusmn; 0.21, with an efficacy index of 1.05. More than 60% of the eyes gained &ge;1 line of BCVA (17 eyes, safety index of 1.14). The treatment was highly predictable for spherical equivalent (r2 = 0.99) and astigmatic components: J0 (r2 = 0.99) and J45 (r2 = 0.90). The mean spherical equivalent dropped from &mdash;7.29 &plusmn; 3.4 D to &mdash;0.17 &plusmn; 0.40 D at 12 months. Of the attempted spherical equivalent, 76.7% of the eyes were within &plusmn;0.50 D and 97.7% eyes were within &plusmn;1.00 D, respectively. For J0 and J45, 97.7% and 83.7% were within &plusmn;0.50 D, respectively.Conclusion: The results of the present study support the safety, efficacy, and predictability of toric implantable collamer lens implantation to treat moderate to high myopic astigmatism.Keywords: phakic intraocular lens, toric implantable collamer lens, astigmatism
format	article
author	Erik L Mertens
author_facet	Erik L Mertens
author_sort	Erik L Mertens
title	Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
title_short	Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
title_full	Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
title_fullStr	Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
title_full_unstemmed	Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
title_sort	toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
publisher	Dove Medical Press
publishDate	2011
url	https://doaj.org/article/3d3032e55ae04dcabd8eae527879cfc0
work_keys_str_mv	AT eriklmertens toricphakicimplantablecollamerlensforcorrectionofastigmatism1yearoutcomes
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Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes

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