Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
Identifieur interne : 002929 ( Main/Merge ); précédent : 002928; suivant : 002930Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes
Auteurs : Erik L. MertensSource :
- Clinical Ophthalmology (Auckland, N.Z.) [ 1177-5467 ] ; 2011.
Abstract
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.
Forty-three eyes of 23 patients underwent implantation of a toric implantable collamer lens (STAAR Surgical Inc) for astigmatism correction. Mean spherical refraction was −4. 98 ± 3.49 diopters (D) (range: 0 to −13 D), and mean cylinder was −2.62 ± 0.97 D (range: −1.00 to −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.
At 12 months the mean Snellen decimal UCVA was 0.87 ± 0.27 and mean BCVA was 0.94 ± 0.21, with an efficacy index of 1.05. More than 60% of the eyes gained ≥1 line of BCVA (17 eyes, safety index of 1.14). The treatment was highly predictable for spherical equivalent (
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.
Url:
DOI: 10.2147/OPTH.S7259
PubMed: 21468348
PubMed Central: 3065582
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes</title><author><name sortKey="Mertens, Erik L" sort="Mertens, Erik L" uniqKey="Mertens E" first="Erik L" last="Mertens">Erik L. Mertens</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21468348</idno><idno type="pmc">3065582</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3065582</idno><idno type="RBID">PMC:3065582</idno><idno type="doi">10.2147/OPTH.S7259</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">002655</idno><idno type="wicri:Area/Pmc/Curation">002655</idno><idno type="wicri:Area/Pmc/Checkpoint">001938</idno><idno type="wicri:Area/Ncbi/Merge">001981</idno><idno type="wicri:Area/Ncbi/Curation">001981</idno><idno type="wicri:Area/Ncbi/Checkpoint">001981</idno><idno type="wicri:doubleKey">1177-5467:2011:Mertens E:toric:phakic:implantable</idno><idno type="wicri:Area/Main/Merge">002929</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Toric phakic implantable collamer lens for correction of astigmatism: 1-year outcomes</title><author><name sortKey="Mertens, Erik L" sort="Mertens, Erik L" uniqKey="Mertens E" first="Erik L" last="Mertens">Erik L. Mertens</name></author></analytic><series><title level="j">Clinical Ophthalmology (Auckland, N.Z.)</title><idno type="ISSN">1177-5467</idno><idno type="eISSN">1177-5483</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Purpose:</title><p>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.</p></sec><sec><title>Methods:</title><p>Forty-three eyes of 23 patients underwent implantation of a toric implantable collamer lens (STAAR Surgical Inc) for astigmatism correction. Mean spherical refraction was −4. 98 ± 3.49 diopters (D) (range: 0 to −13 D), and mean cylinder was −2.62 ± 0.97 D (range: −1.00 to −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.</p></sec><sec><title>Results:</title><p>At 12 months the mean Snellen decimal UCVA was 0.87 ± 0.27 and mean BCVA was 0.94 ± 0.21, with an efficacy index of 1.05. More than 60% of the eyes gained ≥1 line of BCVA (17 eyes, safety index of 1.14). The treatment was highly predictable for spherical equivalent (<italic>r</italic><sup>2</sup> = 0.99) and astigmatic components: J<sub>0</sub> (<italic>r</italic><sup>2</sup> = 0.99) and J<sub>45</sub> (<italic>r</italic><sup>2</sup> = 0.90). The mean spherical equivalent dropped from −7.29 ± 3.4 D to −0.17 ± 0.40 D at 12 months. Of the attempted spherical equivalent, 76.7% of the eyes were within ±0.50 D and 97.7% eyes were within ±1.00 D, respectively. For J<sub>0</sub> and J<sub>45</sub>, 97.7% and 83.7% were within ±0.50 D, respectively.</p></sec><sec><title>Conclusion:</title><p>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.</p></sec></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Lovisolo, Cf" uniqKey="Lovisolo C">CF Lovisolo</name></author><author><name sortKey="Reinstein, Dz" uniqKey="Reinstein D">DZ Reinstein</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Sanders, Dr" uniqKey="Sanders D">DR Sanders</name></author><author><name sortKey="Doney, K" uniqKey="Doney K">K Doney</name></author><author><name sortKey="Poco, M" uniqKey="Poco M">M Poco</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Arne, Jl" uniqKey="Arne J">JL Arne</name></author><author><name sortKey="Lesueur, Lc" 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