Late dislocation of scleral-sutured posterior chamber intraocular lenses
Identifieur interne : 000B11 ( PascalFrancis/Checkpoint ); précédent : 000B10; suivant : 000B12Late dislocation of scleral-sutured posterior chamber intraocular lenses
Auteurs : Marianne O. Price [États-Unis] ; Francis W. Jr Price [États-Unis] ; Liliana Werner [États-Unis] ; Cecil Berlie [États-Unis] ; Nick Mamalis [États-Unis]Source :
- Journal of cataract and refractive surgery [ 0886-3350 ] ; 2005.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Chirurgie.
English descriptors
- KwdEn :
Abstract
Purpose: To examine a recent series of late scleral-sutured posterior chamber intraocular lens (POOL) dislocations to identify possible causes and preventive measures. Setting: Price Vision Group, Indianapolis, Indiana, USA. Methods: In this retrospective non-comparative interventional case series, 5 consecutive patients received treatment for dislocated scleral-sutured PCIOLs between July 2002 and March 2004. Dislocated lenses were resutured or replaced with another scleral-sutured PCIOL. Results: Dislocation of scleral-sutured PCIOLs occurred 7 to 14 years after implantation. Four dislocations were spontaneous, and 1 was precipitated by trauma. In each case, the suture affixing 1 or both haptics failed. There was no evidence that the suture had eroded through the tissue or that the knot had untied. Microscopic analysis of an explanted IOL with remnants of the suture attached showed localized degradation and cracking of the polypropylene suture material where it had been embedded in the scleral tissue. Conclusion: Suture-fixated PCIOLs can dislocate due to degradation of the suture material over time. The use of larger diameter (9-0 instead of 10-0) polypropylene suture material and placement of the haptic and sutures in the ciliary sulcus to promote attachment of scar tissue may enhance the long-term stability of scleral-fixated PCIOLs.
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<author><name sortKey="Werner, Liliana" sort="Werner, Liliana" uniqKey="Werner L" first="Liliana" last="Werner">Liliana Werner</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Intraocular lens</term>
<term>Late</term>
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<term>Posterior chamber</term>
<term>Sclera</term>
<term>Surgery</term>
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<term>Tardif</term>
<term>Sclérotique</term>
<term>Chambre postérieure</term>
<term>Lentille intraoculaire</term>
<term>Chirurgie</term>
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<front><div type="abstract" xml:lang="en">Purpose: To examine a recent series of late scleral-sutured posterior chamber intraocular lens (POOL) dislocations to identify possible causes and preventive measures. Setting: Price Vision Group, Indianapolis, Indiana, USA. Methods: In this retrospective non-comparative interventional case series, 5 consecutive patients received treatment for dislocated scleral-sutured PCIOLs between July 2002 and March 2004. Dislocated lenses were resutured or replaced with another scleral-sutured PCIOL. Results: Dislocation of scleral-sutured PCIOLs occurred 7 to 14 years after implantation. Four dislocations were spontaneous, and 1 was precipitated by trauma. In each case, the suture affixing 1 or both haptics failed. There was no evidence that the suture had eroded through the tissue or that the knot had untied. Microscopic analysis of an explanted IOL with remnants of the suture attached showed localized degradation and cracking of the polypropylene suture material where it had been embedded in the scleral tissue. Conclusion: Suture-fixated PCIOLs can dislocate due to degradation of the suture material over time. The use of larger diameter (9-0 instead of 10-0) polypropylene suture material and placement of the haptic and sutures in the ciliary sulcus to promote attachment of scar tissue may enhance the long-term stability of scleral-fixated PCIOLs.</div>
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