Subjective and objective performance of the Lenstec KH‐3500 “accommodative” intraocular lens
Identifieur interne : 000941 ( Pmc/Curation ); précédent : 000940; suivant : 000942Subjective and objective performance of the Lenstec KH‐3500 “accommodative” intraocular lens
Auteurs : J S Wolffsohn ; S A Naroo ; N K Motwani ; S. Shah ; O A Hunt ; S. Mantry ; M. Sira ; I A Cunliffe ; M T BensonSource :
- The British Journal of Ophthalmology [ 0007-1161 ] ; 2006.
Abstract
To determine whether eyes implanted with the Lenstec KH‐3500 “accommodative” intraocular lenses (IOLs) have improved subjective and objective focusing performance compared to a standard monofocal IOLs.
28 participants were implanted monocularly with a KH‐3500 “accommodative” IOL and 20 controls with a Softec1 IOL. Outcome measures of refraction, visual acuity, subjective amplitude of accommodation, objective accommodative stimulus response curve, aberrometry, and Scheimpflug imaging were taken at ∼3 weeks and repeated after 6 months.
Best corrected acuity with the KH‐3500 was 0.06 (SD 0.13) logMAR at distance and 0.58 (0.20) logMAR at near. Accommodation was 0.39 (0.53) D measured objectively and 3.1 (1.6) D subjectively. Higher order aberrations were 0.87 (0.85) μm and lower order were 0.24 (0.39) μm. Posterior subcapsular light scatter was 0.95% (1.37%) greater than IOL clarity. In comparison, all control group measures were similar except objective (0.17 (0.13) D; p = 0.032) and subjective (2.0 (0.9) D; p = 0.009) amplitude of accommodation. Six months following surgery, posterior subcapsular scatter had increased (p<0.01) in the KH‐3500 implanted subjects and near word acuity had decreased (p<0.05).
The objective accommodating effects of the KH‐3500 IOL appear to be limited, although the subjective and objective accommodative range is significantly increased compared to control subjects implanted with conventional IOLs. However, this “accommodative” ability of the lens appears to have decreased by 6 months post‐surgery.
Url:
DOI: 10.1136/bjo.2006.090951
PubMed: 16531421
PubMed Central: 1860198
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Sira</name></author><author><name sortKey="Cunliffe, I A" sort="Cunliffe, I A" uniqKey="Cunliffe I" first="I A" last="Cunliffe">I A Cunliffe</name></author><author><name sortKey="Benson, M T" sort="Benson, M T" uniqKey="Benson M" first="M T" last="Benson">M T Benson</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">16531421</idno><idno type="pmc">1860198</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1860198</idno><idno type="RBID">PMC:1860198</idno><idno type="doi">10.1136/bjo.2006.090951</idno><date when="2006">2006</date><idno type="wicri:Area/Pmc/Corpus">000941</idno><idno type="wicri:Area/Pmc/Curation">000941</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Subjective and objective performance of the Lenstec KH‐3500 “accommodative” intraocular lens</title><author><name sortKey="Wolffsohn, J S" sort="Wolffsohn, J S" uniqKey="Wolffsohn J" first="J S" last="Wolffsohn">J S Wolffsohn</name></author><author><name sortKey="Naroo, S A" sort="Naroo, S A" uniqKey="Naroo S" first="S A" last="Naroo">S A Naroo</name></author><author><name sortKey="Motwani, N K" sort="Motwani, N K" uniqKey="Motwani N" first="N K" last="Motwani">N K Motwani</name></author><author><name sortKey="Shah, S" sort="Shah, S" uniqKey="Shah S" first="S" last="Shah">S. Shah</name></author><author><name sortKey="Hunt, O A" sort="Hunt, O A" uniqKey="Hunt O" first="O A" last="Hunt">O A Hunt</name></author><author><name sortKey="Mantry, S" sort="Mantry, S" uniqKey="Mantry S" first="S" last="Mantry">S. Mantry</name></author><author><name sortKey="Sira, M" sort="Sira, M" uniqKey="Sira M" first="M" last="Sira">M. Sira</name></author><author><name sortKey="Cunliffe, I A" sort="Cunliffe, I A" uniqKey="Cunliffe I" first="I A" last="Cunliffe">I A Cunliffe</name></author><author><name sortKey="Benson, M T" sort="Benson, M T" uniqKey="Benson M" first="M T" last="Benson">M T Benson</name></author></analytic><series><title level="j">The British Journal of Ophthalmology</title><idno type="ISSN">0007-1161</idno><idno type="eISSN">1468-2079</idno><imprint><date when="2006">2006</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Aim</title><p>To determine whether eyes implanted with the Lenstec KH‐3500 “accommodative” intraocular lenses (IOLs) have improved subjective and objective focusing performance compared to a standard monofocal IOLs.</p></sec><sec><title>Methods</title><p>28 participants were implanted monocularly with a KH‐3500 “accommodative” IOL and 20 controls with a Softec1 IOL. Outcome measures of refraction, visual acuity, subjective amplitude of accommodation, objective accommodative stimulus response curve, aberrometry, and Scheimpflug imaging were taken at ∼3 weeks and repeated after 6 months.</p></sec><sec><title>Results</title><p>Best corrected acuity with the KH‐3500 was 0.06 (SD 0.13) logMAR at distance and 0.58 (0.20) logMAR at near. Accommodation was 0.39 (0.53) D measured objectively and 3.1 (1.6) D subjectively. Higher order aberrations were 0.87 (0.85) μm and lower order were 0.24 (0.39) μm. Posterior subcapsular light scatter was 0.95% (1.37%) greater than IOL clarity. In comparison, all control group measures were similar except objective (0.17 (0.13) D; p = 0.032) and subjective (2.0 (0.9) D; p = 0.009) amplitude of accommodation. Six months following surgery, posterior subcapsular scatter had increased (p<0.01) in the KH‐3500 implanted subjects and near word acuity had decreased (p<0.05).</p></sec><sec><title>Conclusions</title><p>The objective accommodating effects of the KH‐3500 IOL appear to be limited, although the subjective and objective accommodative range is significantly increased compared to control subjects implanted with conventional IOLs. However, this “accommodative” ability of the lens appears to have decreased by 6 months post‐surgery.</p></sec></div></front></TEI><pmc article-type="case-report"><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">Br J Ophthalmol</journal-id><journal-title>The British Journal of Ophthalmology</journal-title><issn pub-type="ppub">0007-1161</issn><issn pub-type="epub">1468-2079</issn><publisher><publisher-name>BMJ Group</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">16531421</article-id><article-id pub-id-type="pmc">1860198</article-id><article-id pub-id-type="publisher-id">bj90951</article-id><article-id pub-id-type="doi">10.1136/bjo.2006.090951</article-id><article-categories><subj-group subj-group-type="heading"><subject>Clinical Science - Scientific Report</subject></subj-group></article-categories><title-group><article-title>Subjective and objective performance of the Lenstec KH‐3500 “accommodative” intraocular lens</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Wolffsohn</surname><given-names>J S</given-names></name></contrib><contrib contrib-type="author"><name><surname>Naroo</surname><given-names>S A</given-names></name></contrib><contrib contrib-type="author"><name><surname>Motwani</surname><given-names>N K</given-names></name></contrib><contrib contrib-type="author"><name><surname>Shah</surname><given-names>S</given-names></name></contrib><contrib contrib-type="author"><name><surname>Hunt</surname><given-names>O A</given-names></name></contrib><contrib contrib-type="author"><name><surname>Mantry</surname><given-names>S</given-names></name></contrib><contrib contrib-type="author"><name><surname>Sira</surname><given-names>M</given-names></name></contrib><contrib contrib-type="author"><name><surname>Cunliffe</surname><given-names>I A</given-names></name></contrib><contrib contrib-type="author"><name><surname>Benson</surname><given-names>M T</given-names></name></contrib></contrib-group><aff><bold>J S Wolffsohn</bold>,<bold>S A Naroo</bold>,<bold>O A Hunt</bold>, School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK</aff><aff><bold>S Shah</bold>,<bold>I A Cunliffe</bold>,<bold>M T Benson</bold>, Midland Eye Institute, 50 Lode Lane, Birmingham B91 2AW, UK</aff><aff><bold>N K Motwani</bold>,<bold>S Shah</bold>,<bold>S Mantry</bold>,<bold>M Sira</bold>,<bold>I A Cunliffe</bold>,<bold>M T Benson</bold>, Birmingham and Midland Eye Centre, Dudley Road, Birmingham B18 7QU, UK</aff><author-notes><corresp>Correspondence to: J S Wolffsohn<break></break>School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, UK; j.s.w.wolffsohn@aston.ac.uk</corresp></author-notes><pub-date pub-type="ppub"><month>6</month><year>2006</year></pub-date><volume>90</volume><issue>6</issue><fpage>693</fpage><lpage>696</lpage><history><date date-type="accepted"><day>23</day><month>2</month><year>2006</year></date></history><permissions><copyright-statement>Copyright © 2006 BMJ Publishing Group</copyright-statement></permissions><abstract><sec><title>Aim</title><p>To determine whether eyes implanted with the Lenstec KH‐3500 “accommodative” intraocular lenses (IOLs) have improved subjective and objective focusing performance compared to a standard monofocal IOLs.</p></sec><sec><title>Methods</title><p>28 participants were implanted monocularly with a KH‐3500 “accommodative” IOL and 20 controls with a Softec1 IOL. Outcome measures of refraction, visual acuity, subjective amplitude of accommodation, objective accommodative stimulus response curve, aberrometry, and Scheimpflug imaging were taken at ∼3 weeks and repeated after 6 months.</p></sec><sec><title>Results</title><p>Best corrected acuity with the KH‐3500 was 0.06 (SD 0.13) logMAR at distance and 0.58 (0.20) logMAR at near. Accommodation was 0.39 (0.53) D measured objectively and 3.1 (1.6) D subjectively. Higher order aberrations were 0.87 (0.85) μm and lower order were 0.24 (0.39) μm. Posterior subcapsular light scatter was 0.95% (1.37%) greater than IOL clarity. In comparison, all control group measures were similar except objective (0.17 (0.13) D; p = 0.032) and subjective (2.0 (0.9) D; p = 0.009) amplitude of accommodation. Six months following surgery, posterior subcapsular scatter had increased (p<0.01) in the KH‐3500 implanted subjects and near word acuity had decreased (p<0.05).</p></sec><sec><title>Conclusions</title><p>The objective accommodating effects of the KH‐3500 IOL appear to be limited, although the subjective and objective accommodative range is significantly increased compared to control subjects implanted with conventional IOLs. However, this “accommodative” ability of the lens appears to have decreased by 6 months post‐surgery.</p></sec></abstract><kwd-group><kwd>intraocular lens</kwd><kwd>presbyopia</kwd><kwd>ocular accommodation</kwd><kwd>eye focus</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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