Corneal astigmatism correction with scleral flaps in trans-scleral suture-fixed posterior chamber lens implantation: a preliminary clinical observation
Identifieur interne : 001346 ( Pmc/Curation ); précédent : 001345; suivant : 001347Corneal astigmatism correction with scleral flaps in trans-scleral suture-fixed posterior chamber lens implantation: a preliminary clinical observation
Auteurs : Li-Wei Ma [République populaire de Chine] ; Dwight Xuan [États-Unis] ; Xiao-Yan Li [République populaire de Chine] ; Jin-Song Zhang [République populaire de Chine]Source :
- International Journal of Ophthalmology [ 2222-3959 ] ; 2011.
Abstract
To study the impact of scleral flap position, under which the posterior chamber intraocular lenses (PC-IOL) were sulcus-fixed by trans-scleral suture, on cornea astigmatism.
Twenty-six aphakic or cataract eyes were comprised in this prospective noncomparative case series study. Eleven eyes had traumatic cataract removed without sufficient capsular support, 3 had blunt trauma with subluxated traumatic cataract, 8 had undergone vitreoretinal surgery and 4 had congenital cataract removed. The average age was 54 years (range 21-74 years), with 17 men and 7 women. The foldable PC-IOL was fixed in sulcus by trans-scleral suture. The incision for IOL implantation was made 1mm posterior to limbus along the steepest meridian of cornea, while scleral flaps to bury the knots of trans-scleral suture were made along the flattest meridian. All the surgeries were performed by a single doctor (Ma L), and the follow up was at least 13 months (range 13-28 months). The preoperative, 3 months and 1 year postoperative corneal curvature along the steepest and flattest cornea meridian and overall cornea astigmatism were compared.
The curvature along the steepest meridian changed from 44.25±2.22D preoperatively to 44.08±2.16D at 3 months postoperatively, and 43.65±5.23D at 1 year postoperatively (
The scleral flap made along the flattest meridian, under which the posterior chamber intraocular lenses (PCIOL) were sulcus-fixed by trans-scleral suture, can steepen the cornea in varying degrees, thus reducing preexisting corneal astigmatism.
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DOI: 10.3980/j.issn.2222-3959.2011.05.09
PubMed: 22553711
PubMed Central: 3340717
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Corneal astigmatism correction with scleral flaps in trans-scleral suture-fixed posterior chamber lens implantation: a preliminary clinical observation</title><author><name sortKey="Ma, Li Wei" sort="Ma, Li Wei" uniqKey="Ma L" first="Li-Wei" last="Ma">Li-Wei Ma</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author><author><name sortKey="Xuan, Dwight" sort="Xuan, Dwight" uniqKey="Xuan D" first="Dwight" last="Xuan">Dwight Xuan</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>USU School of Medicine, Bethesda, MD 20814, USA</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>USU School of Medicine, Bethesda, MD 20814</wicri:regionArea></affiliation></author><author><name sortKey="Li, Xiao Yan" sort="Li, Xiao Yan" uniqKey="Li X" first="Xiao-Yan" last="Li">Xiao-Yan Li</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author><author><name sortKey="Zhang, Jin Song" sort="Zhang, Jin Song" uniqKey="Zhang J" first="Jin-Song" last="Zhang">Jin-Song Zhang</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">22553711</idno><idno type="pmc">3340717</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3340717</idno><idno type="RBID">PMC:3340717</idno><idno type="doi">10.3980/j.issn.2222-3959.2011.05.09</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">001346</idno><idno type="wicri:Area/Pmc/Curation">001346</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Corneal astigmatism correction with scleral flaps in trans-scleral suture-fixed posterior chamber lens implantation: a preliminary clinical observation</title><author><name sortKey="Ma, Li Wei" sort="Ma, Li Wei" uniqKey="Ma L" first="Li-Wei" last="Ma">Li-Wei Ma</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author><author><name sortKey="Xuan, Dwight" sort="Xuan, Dwight" uniqKey="Xuan D" first="Dwight" last="Xuan">Dwight Xuan</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>USU School of Medicine, Bethesda, MD 20814, USA</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>USU School of Medicine, Bethesda, MD 20814</wicri:regionArea></affiliation></author><author><name sortKey="Li, Xiao Yan" sort="Li, Xiao Yan" uniqKey="Li X" first="Xiao-Yan" last="Li">Xiao-Yan Li</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author><author><name sortKey="Zhang, Jin Song" sort="Zhang, Jin Song" uniqKey="Zhang J" first="Jin-Song" last="Zhang">Jin-Song Zhang</name><affiliation wicri:level="1"><nlm:aff id="aff1"><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></nlm:aff><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province</wicri:regionArea></affiliation></author></analytic><series><title level="j">International Journal of Ophthalmology</title><idno type="ISSN">2222-3959</idno><idno type="eISSN">2222-3959</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>AIM</title><p>To study the impact of scleral flap position, under which the posterior chamber intraocular lenses (PC-IOL) were sulcus-fixed by trans-scleral suture, on cornea astigmatism.</p></sec><sec><title>METHODS</title><p>Twenty-six aphakic or cataract eyes were comprised in this prospective noncomparative case series study. Eleven eyes had traumatic cataract removed without sufficient capsular support, 3 had blunt trauma with subluxated traumatic cataract, 8 had undergone vitreoretinal surgery and 4 had congenital cataract removed. The average age was 54 years (range 21-74 years), with 17 men and 7 women. The foldable PC-IOL was fixed in sulcus by trans-scleral suture. The incision for IOL implantation was made 1mm posterior to limbus along the steepest meridian of cornea, while scleral flaps to bury the knots of trans-scleral suture were made along the flattest meridian. All the surgeries were performed by a single doctor (Ma L), and the follow up was at least 13 months (range 13-28 months). The preoperative, 3 months and 1 year postoperative corneal curvature along the steepest and flattest cornea meridian and overall cornea astigmatism were compared.</p></sec><sec><title>RESULTS</title><p>The curvature along the steepest meridian changed from 44.25±2.22D preoperatively to 44.08±2.16D at 3 months postoperatively, and 43.65±5.23D at 1 year postoperatively (<italic>P</italic>>0.05); the curvature along the flattest meridian changed from 41.24±2.21D preoperatively to 43.15±3.94D at 3 months postoperatively, and 42.85±5.17D at 1 year postoperatively (<italic>P</italic><0.05); and the surgery induced astigmatism (SIA) on cornea was calculated by vector analysis, which was 2.42±2.13D at 3 months postoperatively, and 2.18±3.42D at 1 year postoperatively, the difference was statistically significant (<italic>P</italic><0.05).</p></sec><sec><title>CONCLUSION</title><p>The scleral flap made along the flattest meridian, under which the posterior chamber intraocular lenses (PCIOL) were sulcus-fixed by trans-scleral suture, can steepen the cornea in varying degrees, thus reducing preexisting corneal astigmatism.</p></sec></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front><journal-meta><journal-id journal-id-type="nlm-ta">Int J Ophthalmol</journal-id><journal-id journal-id-type="publisher-id">IJO</journal-id><journal-title-group><journal-title>International Journal of Ophthalmology</journal-title></journal-title-group><issn pub-type="ppub">2222-3959</issn><issn pub-type="epub">2222-3959</issn><publisher><publisher-name>International Journal of Ophthalmology Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">22553711</article-id><article-id pub-id-type="pmc">3340717</article-id><article-id pub-id-type="publisher-id">ijo-04-05-502</article-id><article-id pub-id-type="doi">10.3980/j.issn.2222-3959.2011.05.09</article-id><article-categories><subj-group subj-group-type="heading"><subject>Clinical Research</subject></subj-group></article-categories><title-group><article-title>Corneal astigmatism correction with scleral flaps in trans-scleral suture-fixed posterior chamber lens implantation: a preliminary clinical observation</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Ma</surname><given-names>Li-Wei</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Xuan</surname><given-names>Dwight</given-names></name><xref ref-type="aff" rid="aff2">2</xref></contrib><contrib contrib-type="author"><name><surname>Li</surname><given-names>Xiao-Yan</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib><contrib contrib-type="author"><name><surname>Zhang</surname><given-names>Jin-Song</given-names></name><xref ref-type="aff" rid="aff1">1</xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China</addr-line></aff><aff id="aff2"><label>2</label><addr-line>USU School of Medicine, Bethesda, MD 20814, USA</addr-line></aff><author-notes><corresp><bold>Correspondence to:</bold> Li-Wei Ma. Department of Ophthalmology, the 4th Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Provincial Key Laboratory of Lens Research of Liaoning, Shenyang 110005, Liaoning Province, China. <email>coolrat008@yahoo.com</email></corresp></author-notes><pub-date pub-type="epub"><day>18</day><month>10</month><year>2011</year></pub-date><pub-date pub-type="collection"><year>2011</year></pub-date><volume>4</volume><issue>5</issue><fpage>502</fpage><lpage>507</lpage><history><date date-type="received"><day>27</day><month>5</month><year>2011</year></date><date date-type="accepted"><day>1</day><month>8</month><year>2011</year></date></history><permissions><copyright-statement>International Journal of Ophthalmology Press</copyright-statement><copyright-year>2011</copyright-year></permissions><abstract><sec><title>AIM</title><p>To study the impact of scleral flap position, under which the posterior chamber intraocular lenses (PC-IOL) were sulcus-fixed by trans-scleral suture, on cornea astigmatism.</p></sec><sec><title>METHODS</title><p>Twenty-six aphakic or cataract eyes were comprised in this prospective noncomparative case series study. Eleven eyes had traumatic cataract removed without sufficient capsular support, 3 had blunt trauma with subluxated traumatic cataract, 8 had undergone vitreoretinal surgery and 4 had congenital cataract removed. The average age was 54 years (range 21-74 years), with 17 men and 7 women. The foldable PC-IOL was fixed in sulcus by trans-scleral suture. The incision for IOL implantation was made 1mm posterior to limbus along the steepest meridian of cornea, while scleral flaps to bury the knots of trans-scleral suture were made along the flattest meridian. All the surgeries were performed by a single doctor (Ma L), and the follow up was at least 13 months (range 13-28 months). The preoperative, 3 months and 1 year postoperative corneal curvature along the steepest and flattest cornea meridian and overall cornea astigmatism were compared.</p></sec><sec><title>RESULTS</title><p>The curvature along the steepest meridian changed from 44.25±2.22D preoperatively to 44.08±2.16D at 3 months postoperatively, and 43.65±5.23D at 1 year postoperatively (<italic>P</italic>>0.05); the curvature along the flattest meridian changed from 41.24±2.21D preoperatively to 43.15±3.94D at 3 months postoperatively, and 42.85±5.17D at 1 year postoperatively (<italic>P</italic><0.05); and the surgery induced astigmatism (SIA) on cornea was calculated by vector analysis, which was 2.42±2.13D at 3 months postoperatively, and 2.18±3.42D at 1 year postoperatively, the difference was statistically significant (<italic>P</italic><0.05).</p></sec><sec><title>CONCLUSION</title><p>The scleral flap made along the flattest meridian, under which the posterior chamber intraocular lenses (PCIOL) were sulcus-fixed by trans-scleral suture, can steepen the cornea in varying degrees, thus reducing preexisting corneal astigmatism.</p></sec></abstract><kwd-group><kwd>intraocular lens</kwd><kwd>suture fixation</kwd><kwd>astigmatism</kwd><kwd>lack of posterior capsule</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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