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Opacification of two hydrophilic acrylic intraocular lenses 3 months after implantation

Identifieur interne : 006F88 ( Main/Exploration ); précédent : 006F87; suivant : 006F89

Opacification of two hydrophilic acrylic intraocular lenses 3 months after implantation

Auteurs : Tamer A. Macky [États-Unis, Égypte] ; Liliana Werner [États-Unis] ; Mahmoud M. Soliman [Égypte] ; Suresh K. Pandey [États-Unis] ; Andrea M. Izak [États-Unis] ; David J. Apple [États-Unis]

Source :

Ophthalmic surgery lasers & imaging

RBID : Pascal:03-0294458

Descripteurs français

Pascal (Inist)
- Lentille intraoculaire, Composé hydrophile, Acrylique dérivé polymère, Opacification, Complication, Iatrogène, Postopératoire, Homme, Etude cas, Phacoémulsification, Cristallin.
Wicri :
- topic : Homme.

English descriptors

KwdEn :
- Acrylic polymer, Case study, Complication, Human, Hydrophilic compound, Iatrogenic, Intraocular lens, Lens, Opacification, Phacoemulsification, Postoperative.

Abstract

▪ BACKGROUND AND OBJECTIVE: To report clinical, pathologic, histochemical, ultrastructural, and spectrographic analyses of explanted hydrophilic acrylic intraocular lenses (IOLs) obtained from two patients who had early visual disturbances caused by postoperative opacification of the lens optic. ▪ MATERIALS AND METHODS: Two hydrophilic IOLs were explanted from patients with decreased visual acuity. The patients became symptomatic 3 months after uneventful phacoemulsification and lens implantation. IOL optic opacification was associated with a fine granularity within the substance of the lens optic. The IOLs were examined by gross and light microscopy. Full-thickness cut sections of the optics were stained with 1% alizarin red (a special stain for calcium). Some sections were submitted for scanning electron microscopy and energy dispersive x-ray spectroscopy. ▪ RESULTS: Microscopic analyses revealed the presence of multiple fine, granular deposits of variable sizes within the optics of the lenses distributed in a line parallel to the anterior and posterior curvatures of the optic, with a clear zone just beneath the optics' surface. Extension of the opacification into the haptics of the IOLs could also be observed. The deposits stained positive with alizarin red. Energy dispersive x-ray spectroscopy of the internal substance of the IOLs also demonstrated the presence of calcium within the deposits. ▪ CONCLUSIONS: This is the first clinicopathologic report of optic and haptic opacification occurring with this hydrophilic acrylic IOL model only 3 months postoperatively. Further studies on other similar cases with this lens should be done to determine the incidence and possible mechanisms of this phenomenon.

Affiliations:

Égypte, États-Unis
Utah

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acrylic polymer</term>
<term>Case study</term>
<term>Complication</term>
<term>Human</term>
<term>Hydrophilic compound</term>
<term>Iatrogenic</term>
<term>Intraocular lens</term>
<term>Lens</term>
<term>Opacification</term>
<term>Phacoemulsification</term>
<term>Postoperative</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Lentille intraoculaire</term>
<term>Composé hydrophile</term>
<term>Acrylique dérivé polymère</term>
<term>Opacification</term>
<term>Complication</term>
<term>Iatrogène</term>
<term>Postopératoire</term>
<term>Homme</term>
<term>Etude cas</term>
<term>Phacoémulsification</term>
<term>Cristallin</term>
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<front><div type="abstract" xml:lang="en">▪ BACKGROUND AND OBJECTIVE: To report clinical, pathologic, histochemical, ultrastructural, and spectrographic analyses of explanted hydrophilic acrylic intraocular lenses (IOLs) obtained from two patients who had early visual disturbances caused by postoperative opacification of the lens optic. ▪ MATERIALS AND METHODS: Two hydrophilic IOLs were explanted from patients with decreased visual acuity. The patients became symptomatic 3 months after uneventful phacoemulsification and lens implantation. IOL optic opacification was associated with a fine granularity within the substance of the lens optic. The IOLs were examined by gross and light microscopy. Full-thickness cut sections of the optics were stained with 1% alizarin red (a special stain for calcium). Some sections were submitted for scanning electron microscopy and energy dispersive x-ray spectroscopy. ▪ RESULTS: Microscopic analyses revealed the presence of multiple fine, granular deposits of variable sizes within the optics of the lenses distributed in a line parallel to the anterior and posterior curvatures of the optic, with a clear zone just beneath the optics' surface. Extension of the opacification into the haptics of the IOLs could also be observed. The deposits stained positive with alizarin red. Energy dispersive x-ray spectroscopy of the internal substance of the IOLs also demonstrated the presence of calcium within the deposits. ▪ CONCLUSIONS: This is the first clinicopathologic report of optic and haptic opacification occurring with this hydrophilic acrylic IOL model only 3 months postoperatively. Further studies on other similar cases with this lens should be done to determine the incidence and possible mechanisms of this phenomenon.</div>
</front>
</TEI>
<affiliations><list><country><li>Égypte</li>
<li>États-Unis</li>
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<region><li>Utah</li>
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<name sortKey="Apple, David J" sort="Apple, David J" uniqKey="Apple D" first="David J." last="Apple">David J. Apple</name>
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<name sortKey="Pandey, Suresh K" sort="Pandey, Suresh K" uniqKey="Pandey S" first="Suresh K." last="Pandey">Suresh K. Pandey</name>
<name sortKey="Werner, Liliana" sort="Werner, Liliana" uniqKey="Werner L" first="Liliana" last="Werner">Liliana Werner</name>
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<country name="Égypte"><noRegion><name sortKey="Macky, Tamer A" sort="Macky, Tamer A" uniqKey="Macky T" first="Tamer A." last="Macky">Tamer A. Macky</name>
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<name sortKey="Soliman, Mahmoud M" sort="Soliman, Mahmoud M" uniqKey="Soliman M" first="Mahmoud M." last="Soliman">Mahmoud M. Soliman</name>
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Opacification of two hydrophilic acrylic intraocular lenses 3 months after implantation

Opacification of two hydrophilic acrylic intraocular lenses 3 months after implantation

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri