Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens
Identifieur interne : 000096 ( Pmc/Curation ); précédent : 000095; suivant : 000097Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens
Auteurs : David P. Pi Ero [Espagne] ; Vicente J. Camps [Espagne] ; María L. Ram N [Espagne] ; Ver Nica Mateo [Espagne] ; Rafael J. Pérez-Cambrodí [Espagne]Source :
- International Journal of Ophthalmology [ 2222-3959 ] ; 2015.
Abstract
To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the prediction of the effective lens position (ELP).
Retrospective study including a total of 25 eyes of 13 patients (age, 50 to 83y) with previous cataract surgery with implantation of the Lentis Mplus LS-312 IOL (Oculentis GmbH, Germany). In all cases, an adjusted IOL power (PIOLadj) was calculated based on Gaussian optics using a variable keratometric index value (nkadj) for the estimation of the corneal power (Pkadj) and on a new value for ELP (ELPadj) obtained by multiple regression analysis. This PIOLadj was compared with the IOL power implanted (PIOLReal) and the value proposed by three conventional formulas (Haigis, Hoffer Q and Holladay I).
PIOLReal was not significantly different than PIOLadj and Holladay IOL power (
Refractive outcomes after cataract surgery with implantation of the multifocal IOL Lentis Mplus LS-312 can be optimized by minimizing the keratometric error and by estimating ELP using a mathematical expression dependent on anatomical factors.
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DOI: 10.3980/j.issn.2222-3959.2015.03.12
PubMed: 26085998
PubMed Central: 4458653
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Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016</wicri:regionArea></affiliation></author><author><name sortKey="Camps, Vicente J" sort="Camps, Vicente J" uniqKey="Camps V" first="Vicente J." last="Camps">Vicente J. Camps</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation></author><author><name sortKey="Ram N, Maria L" sort="Ram N, Maria L" uniqKey="Ram N M" first="María L." last="Ram N">María L. Ram N</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation></author><author><name sortKey="Mateo, Ver Nica" sort="Mateo, Ver Nica" uniqKey="Mateo V" first="Ver Nica" last="Mateo">Ver Nica Mateo</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation></author><author><name sortKey="Perez Cambrodi, Rafael J" sort="Perez Cambrodi, Rafael J" uniqKey="Perez Cambrodi R" first="Rafael J." last="Pérez-Cambrodí">Rafael J. Pérez-Cambrodí</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">26085998</idno><idno type="pmc">4458653</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4458653</idno><idno type="RBID">PMC:4458653</idno><idno type="doi">10.3980/j.issn.2222-3959.2015.03.12</idno><date when="2015">2015</date><idno type="wicri:Area/Pmc/Corpus">000096</idno><idno type="wicri:Area/Pmc/Curation">000096</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens</title><author><name sortKey="Pi Ero, David P" sort="Pi Ero, David P" uniqKey="Pi Ero D" first="David P." last="Pi Ero">David P. Pi Ero</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016</wicri:regionArea></affiliation></author><author><name sortKey="Camps, Vicente J" sort="Camps, Vicente J" uniqKey="Camps V" first="Vicente J." last="Camps">Vicente J. Camps</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation></author><author><name sortKey="Ram N, Maria L" sort="Ram N, Maria L" uniqKey="Ram N M" first="María L." last="Ram N">María L. Ram N</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation></author><author><name sortKey="Mateo, Ver Nica" sort="Mateo, Ver Nica" uniqKey="Mateo V" first="Ver Nica" last="Mateo">Ver Nica Mateo</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690</wicri:regionArea></affiliation></author><author><name sortKey="Perez Cambrodi, Rafael J" sort="Perez Cambrodi, Rafael J" uniqKey="Perez Cambrodi R" first="Rafael J." last="Pérez-Cambrodí">Rafael J. Pérez-Cambrodí</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016</wicri:regionArea></affiliation><affiliation wicri:level="1"><nlm:aff id="aff3"><addr-line>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016, Spain</addr-line></nlm:aff><country xml:lang="fr">Espagne</country><wicri:regionArea>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016</wicri:regionArea></affiliation></author></analytic><series><title level="j">International Journal of Ophthalmology</title><idno type="ISSN">2222-3959</idno><idno type="eISSN">2227-4898</idno><imprint><date when="2015">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>AIM</title><p>To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the prediction of the effective lens position (ELP).</p></sec><sec><title>METHODS</title><p>Retrospective study including a total of 25 eyes of 13 patients (age, 50 to 83y) with previous cataract surgery with implantation of the Lentis Mplus LS-312 IOL (Oculentis GmbH, Germany). In all cases, an adjusted IOL power (P<sub>IOLadj</sub>) was calculated based on Gaussian optics using a variable keratometric index value (n<sub>kadj</sub>) for the estimation of the corneal power (P<sub>kadj</sub>) and on a new value for ELP (ELP<sub>adj</sub>) obtained by multiple regression analysis. This P<sub>IOLadj</sub> was compared with the IOL power implanted (P<sub>IOLReal</sub>) and the value proposed by three conventional formulas (Haigis, Hoffer Q and Holladay I).</p></sec><sec><title>RESULTS</title><p>P<sub>IOLReal</sub> was not significantly different than P<sub>IOLadj</sub> and Holladay IOL power (<italic>P</italic>>0.05). In the Bland and Altman analysis, P<sub>IOLadj</sub> showed lower mean difference (-0.07 D) and limits of agreement (of 1.47 and -1.61 D) when compared to P<sub>IOLReal</sub> than the IOL power value obtained with the Holladay formula. Furthermore, ELP<sub>adj</sub> was significantly lower than ELP calculated with other conventional formulas (<italic>P</italic><0.01) and was found to be dependent on axial length, anterior chamber depth and P<sub>kadj</sub>.</p></sec><sec><title>CONCLUSION</title><p>Refractive outcomes after cataract surgery with implantation of the multifocal IOL Lentis Mplus LS-312 can be optimized by minimizing the keratometric error and by estimating ELP using a mathematical expression dependent on anatomical factors.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Int J Ophthalmol</journal-id><journal-id journal-id-type="publisher-id">IJO</journal-id><journal-title-group><journal-title>International Journal of Ophthalmology</journal-title></journal-title-group><issn pub-type="ppub">2222-3959</issn><issn pub-type="epub">2227-4898</issn><publisher><publisher-name>International Journal of Ophthalmology Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">26085998</article-id><article-id pub-id-type="pmc">4458653</article-id><article-id pub-id-type="publisher-id">ijo-08-03-501</article-id><article-id pub-id-type="doi">10.3980/j.issn.2222-3959.2015.03.12</article-id><article-categories><subj-group subj-group-type="heading"><subject>Clinical Research</subject></subj-group></article-categories><title-group><article-title>Error induced by the estimation of the corneal power and the effective lens position with a rotationally asymmetric refractive multifocal intraocular lens</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Piñero</surname><given-names>David P.</given-names></name><xref ref-type="aff" rid="aff1">1</xref><xref ref-type="aff" rid="aff2">2</xref><xref ref-type="aff" rid="aff3">3</xref></contrib><contrib contrib-type="author"><name><surname>Camps</surname><given-names>Vicente J.</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Ramón</surname><given-names>María L.</given-names></name><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Mateo</surname><given-names>Verónica</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Pérez-Cambrodí</surname><given-names>Rafael J.</given-names></name><xref ref-type="aff" rid="aff2">2</xref><xref ref-type="aff" rid="aff3">3</xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Grupo de Óptica y Percepción Visual (GOPV). Department of Optics, Pharmacology and Anatomy, University of Alicante, San Vicente del Raspeig, Alicante 03690, Spain</addr-line></aff><aff id="aff2"><label>2</label><addr-line>Department of Ophthalmology (Oftalmar), Vithas Medimar International Hospital, Alicante 03016, Spain</addr-line></aff><aff id="aff3"><label>3</label><addr-line>Foundation for the Visual Quality (FUNCAVIS: Fundación para la Calidad Visual), Alicante 03016, Spain</addr-line></aff><author-notes><corresp><bold>Correspondence to:</bold> David P. Piñero. Department of Ophthalmology (OFTALMAR), 1<sup>st</sup> floor, Medimar International Hospital, C/Padre Arrupe 20, Alicante 03016, Spain. <email>dpinero@oftalmar.es</email></corresp></author-notes><pub-date pub-type="epub"><day>18</day><month>6</month><year>2015</year></pub-date><pub-date pub-type="collection"><year>2015</year></pub-date><volume>8</volume><issue>3</issue><fpage>501</fpage><lpage>507</lpage><history><date date-type="received"><day>2</day><month>9</month><year>2014</year></date><date date-type="accepted"><day>1</day><month>12</month><year>2014</year></date></history><permissions><copyright-statement>International Journal of Ophthalmology Press</copyright-statement><copyright-year>2015</copyright-year></permissions><abstract><sec><title>AIM</title><p>To evaluate the prediction error in intraocular lens (IOL) power calculation for a rotationally asymmetric refractive multifocal IOL and the impact on this error of the optimization of the keratometric estimation of the corneal power and the prediction of the effective lens position (ELP).</p></sec><sec><title>METHODS</title><p>Retrospective study including a total of 25 eyes of 13 patients (age, 50 to 83y) with previous cataract surgery with implantation of the Lentis Mplus LS-312 IOL (Oculentis GmbH, Germany). In all cases, an adjusted IOL power (P<sub>IOLadj</sub>) was calculated based on Gaussian optics using a variable keratometric index value (n<sub>kadj</sub>) for the estimation of the corneal power (P<sub>kadj</sub>) and on a new value for ELP (ELP<sub>adj</sub>) obtained by multiple regression analysis. This P<sub>IOLadj</sub> was compared with the IOL power implanted (P<sub>IOLReal</sub>) and the value proposed by three conventional formulas (Haigis, Hoffer Q and Holladay I).</p></sec><sec><title>RESULTS</title><p>P<sub>IOLReal</sub> was not significantly different than P<sub>IOLadj</sub> and Holladay IOL power (<italic>P</italic>>0.05). In the Bland and Altman analysis, P<sub>IOLadj</sub> showed lower mean difference (-0.07 D) and limits of agreement (of 1.47 and -1.61 D) when compared to P<sub>IOLReal</sub> than the IOL power value obtained with the Holladay formula. Furthermore, ELP<sub>adj</sub> was significantly lower than ELP calculated with other conventional formulas (<italic>P</italic><0.01) and was found to be dependent on axial length, anterior chamber depth and P<sub>kadj</sub>.</p></sec><sec><title>CONCLUSION</title><p>Refractive outcomes after cataract surgery with implantation of the multifocal IOL Lentis Mplus LS-312 can be optimized by minimizing the keratometric error and by estimating ELP using a mathematical expression dependent on anatomical factors.</p></sec></abstract><kwd-group><kwd>Mplus</kwd><kwd>multifocal intraocular lens</kwd><kwd>keratometry</kwd><kwd>effective lens position</kwd><kwd>intraocular lens power</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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