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Bilateral spontaneous anterior dislocation of intraocular lens with the capsular bag in a patient with pseudoexfoliation

Identifieur interne : 000438 ( Pmc/Curation ); précédent : 000437; suivant : 000439

Bilateral spontaneous anterior dislocation of intraocular lens with the capsular bag in a patient with pseudoexfoliation

Auteurs : Harsha Bhattacharjee [Inde] ; Rushil Kumar Saxena [Inde] ; Jnanankar Medhi [Inde]

Source :

RBID : PMC:4728982

Abstract

We report a rare case of bilateral spontaneous anterior partial in-the-bag intraocular lens (IOL) dislocation in a 75-year-old man with pseudoexfoliation (PXF). He underwent uneventful phacoemulsification in both eyes with in-the-bag IOL implantation 9 years back. In the right eye, single piece poly (methyl methacrylate) (PMMA) IOL (+19 D) and in the left eye, single piece acrylic foldable IOL (+19 D) were implanted. An attempt at pharmacological IOL repositioning was unsuccessful. The dislocated IOLs were explanted and exchanged with scleral suture fixated PMMA IOLs. Vision improved to 20/30 in both eyes following surgery, without any associated ocular morbidity. We believe that zonular weakness secondary to PXF, capsular contraction, and myopia together were the predisposing factors for partial anterior dislocation of IOLs and IOL exchange with scleral suture fixation of IOL is a safe and effective treatment option.


Url:
DOI: 10.4103/0301-4738.171520
PubMed: 26655008
PubMed Central: 4728982

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<name sortKey="Saxena, Rushil Kumar" sort="Saxena, Rushil Kumar" uniqKey="Saxena R" first="Rushil Kumar" last="Saxena">Rushil Kumar Saxena</name>
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<p>We report a rare case of bilateral spontaneous anterior partial in-the-bag intraocular lens (IOL) dislocation in a 75-year-old man with pseudoexfoliation (PXF). He underwent uneventful phacoemulsification in both eyes with in-the-bag IOL implantation 9 years back. In the right eye, single piece poly (methyl methacrylate) (PMMA) IOL (+19 D) and in the left eye, single piece acrylic foldable IOL (+19 D) were implanted. An attempt at pharmacological IOL repositioning was unsuccessful. The dislocated IOLs were explanted and exchanged with scleral suture fixated PMMA IOLs. Vision improved to 20/30 in both eyes following surgery, without any associated ocular morbidity. We believe that zonular weakness secondary to PXF, capsular contraction, and myopia together were the predisposing factors for partial anterior dislocation of IOLs and IOL exchange with scleral suture fixation of IOL is a safe and effective treatment option.</p>
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<pmc-dir>properties open_access</pmc-dir>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Indian J Ophthalmol</journal-id>
<journal-id journal-id-type="iso-abbrev">Indian J Ophthalmol</journal-id>
<journal-id journal-id-type="publisher-id">IJO</journal-id>
<journal-title-group>
<journal-title>Indian Journal of Ophthalmology</journal-title>
</journal-title-group>
<issn pub-type="ppub">0301-4738</issn>
<issn pub-type="epub">1998-3689</issn>
<publisher>
<publisher-name>Medknow Publications & Media Pvt Ltd</publisher-name>
<publisher-loc>India</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">26655008</article-id>
<article-id pub-id-type="pmc">4728982</article-id>
<article-id pub-id-type="publisher-id">IJO-63-796</article-id>
<article-id pub-id-type="doi">10.4103/0301-4738.171520</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Brief Communications</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Bilateral spontaneous anterior dislocation of intraocular lens with the capsular bag in a patient with pseudoexfoliation</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Bhattacharjee</surname>
<given-names>Harsha</given-names>
</name>
<xref ref-type="aff" rid="aff1"></xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Saxena</surname>
<given-names>Rushil Kumar</given-names>
</name>
<xref ref-type="aff" rid="aff1"></xref>
<xref ref-type="corresp" rid="cor1"></xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Medhi</surname>
<given-names>Jnanankar</given-names>
</name>
<xref ref-type="aff" rid="aff1"></xref>
</contrib>
</contrib-group>
<aff id="aff1">Department of Vitreoretina Services, Sri Sankardeva Nethralaya, Guwahati, Assam, India</aff>
<author-notes>
<corresp id="cor1">
<bold>Correspondence to:</bold>
Dr. Rushil Kumar Saxena, Sri Sankardeva Nethralaya, 96, Basistha Road, Beltola, Guwahati - 781 028, Assam, India. E-mail:
<email xlink:href="rushilkr@gmail.com">rushilkr@gmail.com</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub">
<month>10</month>
<year>2015</year>
</pub-date>
<volume>63</volume>
<issue>10</issue>
<fpage>796</fpage>
<lpage>798</lpage>
<history>
<date date-type="received">
<day>01</day>
<month>5</month>
<year>2015</year>
</date>
<date date-type="accepted">
<day>15</day>
<month>9</month>
<year>2015</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright: © Indian Journal of Ophthalmology</copyright-statement>
<copyright-year>2015</copyright-year>
<license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by-nc-sa/3.0">
<license-p>This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.</license-p>
</license>
</permissions>
<abstract>
<p>We report a rare case of bilateral spontaneous anterior partial in-the-bag intraocular lens (IOL) dislocation in a 75-year-old man with pseudoexfoliation (PXF). He underwent uneventful phacoemulsification in both eyes with in-the-bag IOL implantation 9 years back. In the right eye, single piece poly (methyl methacrylate) (PMMA) IOL (+19 D) and in the left eye, single piece acrylic foldable IOL (+19 D) were implanted. An attempt at pharmacological IOL repositioning was unsuccessful. The dislocated IOLs were explanted and exchanged with scleral suture fixated PMMA IOLs. Vision improved to 20/30 in both eyes following surgery, without any associated ocular morbidity. We believe that zonular weakness secondary to PXF, capsular contraction, and myopia together were the predisposing factors for partial anterior dislocation of IOLs and IOL exchange with scleral suture fixation of IOL is a safe and effective treatment option.</p>
</abstract>
<kwd-group>
<kwd>Spontaneous bilateral anterior dislocation of intraocular lens</kwd>
<kwd>pseudoexfoliation</kwd>
<kwd>pseudophakia</kwd>
</kwd-group>
</article-meta>
</front>
<body>
<p>Bilateral spontaneous anterior partial in-the-bag intraocular lens (IOL) dislocation is extremely rare.[
<xref rid="ref1" ref-type="bibr">1</xref>
] Overall anterior and posterior dislocation of IOL occurs in 0.2–3% pseudophakic cases as postoperative complications.[
<xref rid="ref2" ref-type="bibr">2</xref>
<xref rid="ref3" ref-type="bibr">3</xref>
<xref rid="ref4" ref-type="bibr">4</xref>
] We report a case of bilateral spontaneous anterior partial in-the-bag IOL dislocation in a case of pseudoexfoliation (PXF) which occurred 9 years following surgery along with its management.</p>
<sec id="sec1-1">
<title>Case Report</title>
<p>A 75-year-old man reported with the blurring of vision in both eyes. He was known to suffer from PXF and had undergone standard uneventful phacoemulsification with in-the-bag implantation of monofocal IOL in both eyes. In the right eye, a single piece poly (methyl methacrylate) (PMMA) IOL (+19 D) and in the left eye, a single piece acrylic foldable IOL (+19 D) were implanted. The surgeries were performed in the right and left eye at 9 and 8½ years, respectively, before to this examination. All the previous dilated annual eye examinations had been normal, with no clinical evidence of IOL subluxation.</p>
<p>On clinical examination, his visual acuity was 20/60 in both the eyes. Slit lamp examination revealed anterior partial in-the-bag IOL dislocation [Figs.
<xref ref-type="fig" rid="F1">1</xref>
and
<xref ref-type="fig" rid="F2">2</xref>
], capsular contraction and deformation of IOL haptics. Intraocular pressure by Goldmann applanation tonometer (GAT) was 19 mmHg in both eyes. Pupils were dilated with 2.5% phenylephrine eye drops. Indirect ophthalmoscopy revealed normal ocular fundi. Constriction of pupils and IOL repositioning was tried by instillation of 2.0% pilocarpine eye drops in the supine position, but the procedure was unsuccessful. The next day, IOL along with the capsular bag were explanted surgically, [
<xref ref-type="fig" rid="F3">Fig. 3</xref>
] and secondary scleral suture fixation of single piece PMMA IOL (Auro India) was done in the same sitting for the right eye. The procedure was repeated for the left eye 7 days later. The IOLs were held with micro forceps and explanted through the limbal route. Limited anterior vitrectomy through pars plana route was also performed. The secondary IOL implantation procedures and postoperative period were uneventful. After 12 months of surgery, best corrected visual acuity was 20/30 in both eyes. The manifest refraction was ±1.00 DC × 180° and +1.00 DS/−1.50 DC −180° in the right and left eye, respectively. The eyes were quiet and IOP was 19 mmHg (GAT) in both eyes.</p>
<fig id="F1" position="float">
<label>Figure 1</label>
<caption>
<p>Anteriorly dislocated in-the-bag acrylic foldable intraocular lens with (a) capsular contraction and (b) compressed haptic</p>
</caption>
<graphic xlink:href="IJO-63-796-g001"></graphic>
</fig>
<fig id="F2" position="float">
<label>Figure 2</label>
<caption>
<p>In-the-bag modified C loop poly (methyl methacrylate) intraocular lens with (a) ring of soemmering and (b) compressed haptic</p>
</caption>
<graphic xlink:href="IJO-63-796-g002"></graphic>
</fig>
<fig id="F3" position="float">
<label>Figure 3</label>
<caption>
<p>Explanted intraocular lens with the capsular bag</p>
</caption>
<graphic xlink:href="IJO-63-796-g003"></graphic>
</fig>
</sec>
<sec sec-type="discussion" id="sec1-2">
<title>Discussion</title>
<p>IOL dislocation may occur in the immediate postoperative period and is mainly due to poor IOL fixation. This complication may also occur months to years after surgery secondary to zonular weakness. 50% cases of IOL dislocation are associated with PXF.[
<xref rid="ref1" ref-type="bibr">1</xref>
] Other predisposing factors are prior vitrectomy surgery,[
<xref rid="ref1" ref-type="bibr">1</xref>
] trauma,[
<xref rid="ref1" ref-type="bibr">1</xref>
] high myopia,[
<xref rid="ref2" ref-type="bibr">2</xref>
] retinitis pigmentosa[
<xref rid="ref5" ref-type="bibr">5</xref>
] and connective tissue disorders such as Marfan syndrome, homocystinuria, hyperlysinemia, scleroderma, Weill–Marchesani, and Ehler–Danlos syndrome.[
<xref rid="ref3" ref-type="bibr">3</xref>
] A cause-effect relationship between IOL dislocation and severity of glaucoma is suspected.[
<xref rid="ref4" ref-type="bibr">4</xref>
] The late dislocation of IOL may occur anytime from 1 month to 8½ years following surgery.[
<xref rid="ref1" ref-type="bibr">1</xref>
<xref rid="ref2" ref-type="bibr">2</xref>
<xref rid="ref3" ref-type="bibr">3</xref>
<xref rid="ref4" ref-type="bibr">4</xref>
<xref rid="ref6" ref-type="bibr">6</xref>
<xref rid="ref7" ref-type="bibr">7</xref>
]</p>
<p>Bilateral spontaneous in-the-bag IOL dislocations were reported in the anterior or posterior chamber in two cases of gyrate atrophy,[
<xref rid="ref7" ref-type="bibr">7</xref>
<xref rid="ref8" ref-type="bibr">8</xref>
<xref rid="ref9" ref-type="bibr">9</xref>
] one case of retinitis pigmentosa,[
<xref rid="ref5" ref-type="bibr">5</xref>
] and in one patient with intermediate uveitis.[
<xref rid="ref10" ref-type="bibr">10</xref>
] A literature search revealed only one case report of bilateral spontaneous anterior partial in-the-bag IOL dislocation in a patient with PXF. It occurred following mydriasis during a routine annual eye examination.[
<xref rid="ref3" ref-type="bibr">3</xref>
] The case was managed by IOL repositioning and scleral suture fixation of same IOL.[
<xref rid="ref3" ref-type="bibr">3</xref>
] Various corrective surgical management approaches to dislocated IOL including IOL exchange or IOL repositioning with scleral or iris fixation have been described.[
<xref rid="ref3" ref-type="bibr">3</xref>
<xref rid="ref11" ref-type="bibr">11</xref>
<xref rid="ref12" ref-type="bibr">12</xref>
] Apart from the more commonly used suture fixation, a sutureless, glued IOL technique has also been described in a case of bilateral, anterior, in-the-bag subluxation of IOL in a patient with retinitis pigmentosa.[
<xref rid="ref13" ref-type="bibr">13</xref>
] As all the mentioned surgical procedures are reported to be equally efficacious, the ultimate choice of surgery depends on the surgeons’ preference and experience. Our case is of a healthy man with myopia and PXF both eyes. He denied any history of trauma. Bilateral anterior partial in-the-bag IOL dislocation occurred spontaneously 9 years after cataract surgery. Capsular bag revealed fibrotic activity and ring of soemmering. Both the IOLs were of different design and biomaterial. IOL haptics were found to be compressed either due to loss of biomechanical memory or due to contraction of the capsule. Except pseudophakia, during all previous eye examinations, no other signs indicative of future risk of IOL dislocation were observed. The present method of management of IOL exchange, limited anterior vitrectomy, and scleral suture fixation of IOL was found to be a safe and effective surgical option in such a case. It is also observed that IOL design and biomaterial had no role in the prevention of spontaneous dislocation of IOL. We believe PXF, myopia, and capsular contraction together were responsible for spontaneous dislocation of the IOLs, and it is only the second such case report in literature.</p>
</sec>
<sec sec-type="conclusion" id="sec1-3">
<title>Conclusion</title>
<p>Pseudophakia in PXF has potential for spontaneous anterior dislocation with the capsular bag. Annual detailed eye examination has no preventive role in such complications. IOL design and biomaterial are independent of such complications. Such dislocations can be managed definitively by IOL exchange and scleral suture fixation and limited anterior vitrectomy.</p>
<sec id="sec2-1">
<title>Financial support and sponsorship</title>
<p>Nil.</p>
</sec>
<sec id="sec2-2">
<title>Conflicts of interest</title>
<p>There are no conflicts of interest.</p>
</sec>
</sec>
</body>
<back>
<ack>
<title>Acknowledgment</title>
<p>Sri Kanchi Sankara Health and Educational Foundation.</p>
</ack>
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