HapticV1, PascalFrancis, Corpus, bibRecord, 001252

Loop memory of haptic materials in posterior chamber intraocular lenses

Identifieur interne : 001252 ( PascalFrancis/Corpus ); précédent : 001251; suivant : 001253

Loop memory of haptic materials in posterior chamber intraocular lenses

Auteurs : Andrea M. Izak ; Liliana Werner ; David J. Apple ; Tamer A. Macky ; Rupal H. Trivedi ; Suresh K. Pandey

Source :

Journal of cataract and refractive surgery [ 0886-3350 ] ; 2002.

RBID : Pascal:02-0421668

Descripteurs français

Pascal (Inist)
- Lentille intraoculaire, Implantation, Chambre postérieure, Méthacrylate de méthyle polymère, Biomatériau, Intraoculaire, Equipement, Fixation, Etude comparative, Homme.

English descriptors

KwdEn :
- Biomaterial, Comparative study, Equipment, Fixation, Human, Implantation, Intraocular, Intraocular lens, Methyl methacrylate polymer, Posterior chamber.

Abstract

Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0886-3350`
A02	`01`			`@0 JCSUEV`
A03		`1`		`@0 J. cataract refractive surg.`
A05				`@2 28`
A06				`@2 7`
A08	`01`	`1`	`ENG`	`@1 Loop memory of haptic materials in posterior chamber intraocular lenses`
A11	`01`	`1`		`@1 IZAK (Andrea M.)`
A11	`02`	`1`		`@1 WERNER (Liliana)`
A11	`03`	`1`		`@1 APPLE (David J.)`
A11	`04`	`1`		`@1 MACKY (Tamer A.)`
A11	`05`	`1`		`@1 TRIVEDI (Rupal H.)`
A11	`06`	`1`		`@1 PANDEY (Suresh K.)`
A14	`01`			`@1 Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina @2 Charleston, South Carolina @3 USA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut.`
A20				`@1 1229-1235`
A21				`@1 2002`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 20937 @5 354000108890470180`
A44				`@0 0000 @1 © 2002 INIST-CNRS. All rights reserved.`
A45				`@0 16 ref.`
A47	`01`	`1`		`@0 02-0421668`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of cataract and refractive surgery`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.
C02	`01`	`X`		`@0 002B25B`
C03	`01`	`X`	`FRE`	`@0 Lentille intraoculaire @5 01`
C03	`01`	`X`	`ENG`	`@0 Intraocular lens @5 01`
C03	`01`	`X`	`SPA`	`@0 Lente intraocular @5 01`
C03	`02`	`X`	`FRE`	`@0 Implantation @5 02`
C03	`02`	`X`	`ENG`	`@0 Implantation @5 02`
C03	`02`	`X`	`SPA`	`@0 Implantación @5 02`
C03	`03`	`X`	`FRE`	`@0 Chambre postérieure @5 03`
C03	`03`	`X`	`ENG`	`@0 Posterior chamber @5 03`
C03	`03`	`X`	`SPA`	`@0 Cámara posterior @5 03`
C03	`04`	`X`	`FRE`	`@0 Méthacrylate de méthyle polymère @2 NK @5 04`
C03	`04`	`X`	`ENG`	`@0 Methyl methacrylate polymer @2 NK @5 04`
C03	`04`	`X`	`SPA`	`@0 Metacrilato de metilo polímero @2 NK @5 04`
C03	`05`	`X`	`FRE`	`@0 Biomatériau @5 05`
C03	`05`	`X`	`ENG`	`@0 Biomaterial @5 05`
C03	`05`	`X`	`SPA`	`@0 Biomaterial @5 05`
C03	`06`	`X`	`FRE`	`@0 Intraoculaire @5 06`
C03	`06`	`X`	`ENG`	`@0 Intraocular @5 06`
C03	`06`	`X`	`SPA`	`@0 Intraocular @5 06`
C03	`07`	`X`	`FRE`	`@0 Equipement @5 07`
C03	`07`	`X`	`ENG`	`@0 Equipment @5 07`
C03	`07`	`X`	`SPA`	`@0 Equipo @5 07`
C03	`08`	`X`	`FRE`	`@0 Fixation @5 08`
C03	`08`	`X`	`ENG`	`@0 Fixation @5 08`
C03	`08`	`X`	`SPA`	`@0 Fijación @5 08`
C03	`09`	`X`	`FRE`	`@0 Etude comparative @5 09`
C03	`09`	`X`	`ENG`	`@0 Comparative study @5 09`
C03	`09`	`X`	`SPA`	`@0 Estudio comparativo @5 09`
C03	`10`	`X`	`FRE`	`@0 Homme @5 10`
C03	`10`	`X`	`ENG`	`@0 Human @5 10`
C03	`10`	`X`	`SPA`	`@0 Hombre @5 10`
C07	`01`	`X`	`FRE`	`@0 Chirurgie @5 37`
C07	`01`	`X`	`ENG`	`@0 Surgery @5 37`
C07	`01`	`X`	`SPA`	`@0 Cirugía @5 37`
N21				`@1 245`
N82				`@1 PSI`

Format Inist (serveur)

NO :	PASCAL 02-0421668 INIST
ET :	Loop memory of haptic materials in posterior chamber intraocular lenses
AU :	IZAK (Andrea M.); WERNER (Liliana); APPLE (David J.); MACKY (Tamer A.); TRIVEDI (Rupal H.); PANDEY (Suresh K.)
AF :	Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina/Charleston, South Carolina/Etats-Unis (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of cataract and refractive surgery; ISSN 0886-3350; Coden JCSUEV; Etats-Unis; Da. 2002; Vol. 28; No. 7; Pp. 1229-1235; Bibl. 16 ref.
LA :	Anglais
EA :	Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.
CC :	002B25B
FD :	Lentille intraoculaire; Implantation; Chambre postérieure; Méthacrylate de méthyle polymère; Biomatériau; Intraoculaire; Equipement; Fixation; Etude comparative; Homme
FG :	Chirurgie
ED :	Intraocular lens; Implantation; Posterior chamber; Methyl methacrylate polymer; Biomaterial; Intraocular; Equipment; Fixation; Comparative study; Human
EG :	Surgery
SD :	Lente intraocular; Implantación; Cámara posterior; Metacrilato de metilo polímero; Biomaterial; Intraocular; Equipo; Fijación; Estudio comparativo; Hombre
LO :	INIST-20937.354000108890470180
ID :	02-0421668

Links to Exploration step

Pascal:02-0421668

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Loop memory of haptic materials in posterior chamber intraocular lenses</title>
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<series><title level="j" type="main">Journal of cataract and refractive surgery</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomaterial</term>
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<term>Equipment</term>
<term>Fixation</term>
<term>Human</term>
<term>Implantation</term>
<term>Intraocular</term>
<term>Intraocular lens</term>
<term>Methyl methacrylate polymer</term>
<term>Posterior chamber</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Lentille intraoculaire</term>
<term>Implantation</term>
<term>Chambre postérieure</term>
<term>Méthacrylate de méthyle polymère</term>
<term>Biomatériau</term>
<term>Intraoculaire</term>
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<front><div type="abstract" xml:lang="en">Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.</div>
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<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
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<fA64 i1="01" i2="1"><s0>Journal of cataract and refractive surgery</s0>
</fA64>
<fA66 i1="01"><s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>002B25B</s0>
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<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Intraocular lens</s0>
<s5>01</s5>
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<s5>02</s5>
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<s5>03</s5>
</fC03>
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<s5>03</s5>
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<fC03 i1="04" i2="X" l="FRE"><s0>Méthacrylate de méthyle polymère</s0>
<s2>NK</s2>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Methyl methacrylate polymer</s0>
<s2>NK</s2>
<s5>04</s5>
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<fC03 i1="04" i2="X" l="SPA"><s0>Metacrilato de metilo polímero</s0>
<s2>NK</s2>
<s5>04</s5>
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<s5>06</s5>
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<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Equipment</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Equipo</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Fixation</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Fixation</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Fijación</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Etude comparative</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Comparative study</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Estudio comparativo</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Homme</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Human</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Hombre</s0>
<s5>10</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Chirurgie</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Surgery</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Cirugía</s0>
<s5>37</s5>
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<fN21><s1>245</s1>
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<server><NO>PASCAL 02-0421668 INIST</NO>
<ET>Loop memory of haptic materials in posterior chamber intraocular lenses</ET>
<AU>IZAK (Andrea M.); WERNER (Liliana); APPLE (David J.); MACKY (Tamer A.); TRIVEDI (Rupal H.); PANDEY (Suresh K.)</AU>
<AF>Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina/Charleston, South Carolina/Etats-Unis (1 aut., 2 aut., 3 aut., 4 aut., 5 aut., 6 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of cataract and refractive surgery; ISSN 0886-3350; Coden JCSUEV; Etats-Unis; Da. 2002; Vol. 28; No. 7; Pp. 1229-1235; Bibl. 16 ref.</SO>
<LA>Anglais</LA>
<EA>Purpose: To compare the shape recovery ratios after compression of haptic materials used in the manufacture of intraocular lenses (IOLs). Setting: Center for Research on Ocular Therapeutics and Biodevices, Storm Eye Institute, Medical University of South Carolina, Charleston, South Carolina, USA. Methods: The loop memory of 40 silicone-optic posterior chamber lOLs was studied. All the lOLs had modified-C haptics made of poly(methyl methacrylate) (PMMA; n = 10), polyimide (n = 10), polyvinylidene fluoride (PVDF; n = 10), and polypropylene (PP; n = 10). After the overall diameter of each lens was measured (day 0), the lenses were inserted into plastic wells (9.5 mm in diameter) and immersed in water (37°C) for 1 month. They were then placed on an open plate and allowed to reexpand for 2 months. Overall diameter measurements were performed within 5 minutes of the lOLs' removal from the wells and at subsequent time points (days 14, 28, 30, 60, 74, 88, and 95). Results: The loop memory of each lens was expressed as the difference between the initial overall diameter measurement (pretest) and the measurement at each time point; the lower the value, the higher the memory. The overall difference among the 4 groups was statistically significant at each time point (P ≤.001). From days 30 to 95, silicone-PMMA, silicone-elastimide, and silicone-PVDF lOLs had similar loop memory mean values, which were significantly lower than the mean value of silicone-PP lOLs (P <.05). The latter design tended to be deformed after removal from the wells, with increased optic-haptic angulation. Conclusion: Studying the loop memory of haptic materials (PMMA, polyimide, PVDF, and PP) used in the manufacture of posterior chamber lOLs can help surgeons choose an appropriate IOL for each patient.</EA>
<CC>002B25B</CC>
<FD>Lentille intraoculaire; Implantation; Chambre postérieure; Méthacrylate de méthyle polymère; Biomatériau; Intraoculaire; Equipement; Fixation; Etude comparative; Homme</FD>
<FG>Chirurgie</FG>
<ED>Intraocular lens; Implantation; Posterior chamber; Methyl methacrylate polymer; Biomaterial; Intraocular; Equipment; Fixation; Comparative study; Human</ED>
<EG>Surgery</EG>
<SD>Lente intraocular; Implantación; Cámara posterior; Metacrilato de metilo polímero; Biomaterial; Intraocular; Equipo; Fijación; Estudio comparativo; Hombre</SD>
<LO>INIST-20937.354000108890470180</LO>
<ID>02-0421668</ID>
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Loop memory of haptic materials in posterior chamber intraocular lenses

Loop memory of haptic materials in posterior chamber intraocular lenses

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