Contrast sensitivity with silicone and poly(methyl methacrylate) intraocular lenses
Identifieur interne : 009410 ( Main/Merge ); précédent : 009409; suivant : 009411Contrast sensitivity with silicone and poly(methyl methacrylate) intraocular lenses
Auteurs : Johnny Johansen ; Mikael Dam-Johansen ; Thomas OlsenSource :
- Journal of Cataract & Refractive Surgery [ 0886-3350 ] ; 1997.
Abstract
Purpose: To compare the optical performance of silicone intraocular lenses (IOLs) with that of conventional poly(methyl methacrylate) (PMMA) IOLs.Setting: University hospital outpatient cataract clinic.Methods: Ninety-one patients were randomly assigned to receive a PMMA IOL (n = 48 eyes) or a silicone IOL (n = 43 eyes). Contrast sensitivity was evaluated 4 months after surgery using the Vistech sinusoidal-grating chart and the Pelli-Robson letter sensitivity chart.Results: No between-group differences were found using the Vistech test. Using the Pelli-Robson test, mean uncorrected contrast sensitivity was 1.59 log units ±0.13 (SD) in the PMMA group and 1.53 ± 0.15 log units in the silicone group. Mean best corrected contrast sensitivity was 1.67 ± 0.11 and 1.63 ± 0.16, respectively. The differences between groups using the Pelli-Robson test were statistically significant (P < .05). No correlation was found between reduced contrast sensitivity and brownish discoloration or thickness of silicone IOLs or posterior capsule fibrosis.Conclusion: Contrast sensitivity was lower in patients with silicone IOLs than in those with conventional PMMA lenses.
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DOI: 10.1016/S0886-3350(97)80085-5
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Contrast sensitivity with silicone and poly(methyl methacrylate) intraocular lenses</title><author><name sortKey="Johansen, Johnny" sort="Johansen, Johnny" uniqKey="Johansen J" first="Johnny" last="Johansen">Johnny Johansen</name></author><author><name sortKey="Dam Johansen, Mikael" sort="Dam Johansen, Mikael" uniqKey="Dam Johansen M" first="Mikael" last="Dam-Johansen">Mikael Dam-Johansen</name></author><author><name sortKey="Olsen, Thomas" sort="Olsen, Thomas" uniqKey="Olsen T" first="Thomas" last="Olsen">Thomas Olsen</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:23E3C9171A23CED91BC2634760D55C00BF819BD0</idno><date when="1997" year="1997">1997</date><idno type="doi">10.1016/S0886-3350(97)80085-5</idno><idno type="url">https://api.istex.fr/document/23E3C9171A23CED91BC2634760D55C00BF819BD0/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000476</idno><idno type="wicri:Area/Istex/Curation">000476</idno><idno type="wicri:Area/Istex/Checkpoint">003C59</idno><idno type="wicri:doubleKey">0886-3350:1997:Johansen J:contrast:sensitivity:with</idno><idno type="wicri:Area/Main/Merge">009410</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Contrast sensitivity with silicone and poly(methyl methacrylate) intraocular lenses</title><author><name sortKey="Johansen, Johnny" sort="Johansen, Johnny" uniqKey="Johansen J" first="Johnny" last="Johansen">Johnny Johansen</name></author><author><name sortKey="Dam Johansen, Mikael" sort="Dam Johansen, Mikael" uniqKey="Dam Johansen M" first="Mikael" last="Dam-Johansen">Mikael Dam-Johansen</name></author><author><name sortKey="Olsen, Thomas" sort="Olsen, Thomas" uniqKey="Olsen T" first="Thomas" last="Olsen">Thomas Olsen</name></author></analytic><monogr></monogr><series><title level="j">Journal of Cataract & Refractive Surgery</title><title level="j" type="abbrev">JCRS</title><idno type="ISSN">0886-3350</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1997">1997</date><biblScope unit="volume">23</biblScope><biblScope unit="issue">7</biblScope><biblScope unit="page" from="1085">1085</biblScope><biblScope unit="page" to="1088">1088</biblScope></imprint><idno type="ISSN">0886-3350</idno></series><idno type="istex">23E3C9171A23CED91BC2634760D55C00BF819BD0</idno><idno type="DOI">10.1016/S0886-3350(97)80085-5</idno><idno type="PII">S0886-3350(97)80085-5</idno><idno type="ArticleID">80085</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0886-3350</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose: To compare the optical performance of silicone intraocular lenses (IOLs) with that of conventional poly(methyl methacrylate) (PMMA) IOLs.Setting: University hospital outpatient cataract clinic.Methods: Ninety-one patients were randomly assigned to receive a PMMA IOL (n = 48 eyes) or a silicone IOL (n = 43 eyes). Contrast sensitivity was evaluated 4 months after surgery using the Vistech sinusoidal-grating chart and the Pelli-Robson letter sensitivity chart.Results: No between-group differences were found using the Vistech test. Using the Pelli-Robson test, mean uncorrected contrast sensitivity was 1.59 log units ±0.13 (SD) in the PMMA group and 1.53 ± 0.15 log units in the silicone group. Mean best corrected contrast sensitivity was 1.67 ± 0.11 and 1.63 ± 0.16, respectively. The differences between groups using the Pelli-Robson test were statistically significant (P < .05). No correlation was found between reduced contrast sensitivity and brownish discoloration or thickness of silicone IOLs or posterior capsule fibrosis.Conclusion: Contrast sensitivity was lower in patients with silicone IOLs than in those with conventional PMMA lenses.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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