Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study
Purpose: To compare the visual outcomes and higher order aberrations (HOAs) following wavefront optimized (WFO) laser in situ keratomileusis (LASIK) versus topography-guided customized ablation (TCAT) LASIK for myopia and myopic astigmatism. Methods: Patients who underwent femtosecond-assisted LASIK...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2018-01-01
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| Series: | Indian Journal of Ophthalmology |
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| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2018;volume=66;issue=11;spage=1558;epage=1561;aulast=Tiwari |
| _version_ | 1817993082192265216 |
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| author | Nitin N Tiwari Gitansha S Sachdev Shreyas Ramamurthy Ramamurthy Dandapani |
| author_facet | Nitin N Tiwari Gitansha S Sachdev Shreyas Ramamurthy Ramamurthy Dandapani |
| author_sort | Nitin N Tiwari |
| collection | DOAJ |
| description | Purpose: To compare the visual outcomes and higher order aberrations (HOAs) following wavefront optimized (WFO) laser in situ keratomileusis (LASIK) versus topography-guided customized ablation (TCAT) LASIK for myopia and myopic astigmatism. Methods: Patients who underwent femtosecond-assisted LASIK for myopic correction between August 2016 and October 2017 were included in this interventional prospective case series. The following parameters were evaluated preoperatively and at 3 months' postoperative visit: uncorrected distance vision acuity (UDVA) and corrected distance vision acuity (CDVA), manifest refraction, and HOAs. Results: Two hundred eyes of 100 patients were included in the study. At 3 months' postoperative visit, 92% and 90% eyes in the TCAT and WFO groups, respectively, demonstrated a UDVA of 20/20 or better (P = 0.90). A residual manifest spherical equivalent within 0.5 D was achieved in 100% and 95% of the eyes in the TCAT and WFO groups, respectively (P = 0.10). No significant difference was observed in the HOAs induced in both the groups, with slightly lower induction of trefoil and horizontal coma in the TCAT group. Conclusion: Both groups demonstrated similar refractive efficacy and predictability, with greater gain of CDVA following TCAT ablation. HOAs induced were not significantly different between the two groups. Further studies are needed to validate the superiority of one procedure over the other. |
| first_indexed | 2024-04-14T01:34:46Z |
| format | Article |
| id | doaj.art-6af49e4f5c1b450fb6a412545e2334e9 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-04-14T01:34:46Z |
| publishDate | 2018-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-6af49e4f5c1b450fb6a412545e2334e92022-12-22T02:20:01ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892018-01-0166111558156110.4103/ijo.IJO_507_18Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye studyNitin N TiwariGitansha S SachdevShreyas RamamurthyRamamurthy DandapaniPurpose: To compare the visual outcomes and higher order aberrations (HOAs) following wavefront optimized (WFO) laser in situ keratomileusis (LASIK) versus topography-guided customized ablation (TCAT) LASIK for myopia and myopic astigmatism. Methods: Patients who underwent femtosecond-assisted LASIK for myopic correction between August 2016 and October 2017 were included in this interventional prospective case series. The following parameters were evaluated preoperatively and at 3 months' postoperative visit: uncorrected distance vision acuity (UDVA) and corrected distance vision acuity (CDVA), manifest refraction, and HOAs. Results: Two hundred eyes of 100 patients were included in the study. At 3 months' postoperative visit, 92% and 90% eyes in the TCAT and WFO groups, respectively, demonstrated a UDVA of 20/20 or better (P = 0.90). A residual manifest spherical equivalent within 0.5 D was achieved in 100% and 95% of the eyes in the TCAT and WFO groups, respectively (P = 0.10). No significant difference was observed in the HOAs induced in both the groups, with slightly lower induction of trefoil and horizontal coma in the TCAT group. Conclusion: Both groups demonstrated similar refractive efficacy and predictability, with greater gain of CDVA following TCAT ablation. HOAs induced were not significantly different between the two groups. Further studies are needed to validate the superiority of one procedure over the other.http://www.ijo.in/article.asp?issn=0301-4738;year=2018;volume=66;issue=11;spage=1558;epage=1561;aulast=Tiwarihigher order aberrationslaser in situ keratomileusistopography-guided customized ablationwavefront optimized ablation |
| spellingShingle | Nitin N Tiwari Gitansha S Sachdev Shreyas Ramamurthy Ramamurthy Dandapani Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study Indian Journal of Ophthalmology higher order aberrations laser in situ keratomileusis topography-guided customized ablation wavefront optimized ablation |
| title | Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study |
| title_full | Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study |
| title_fullStr | Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study |
| title_full_unstemmed | Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study |
| title_short | Comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography-guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism: A contralateral eye study |
| title_sort | comparative analysis of visual outcomes and ocular aberrations following wavefront optimized and topography guided customized femtosecond laser in situ keratomileusis for myopia and myopic astigmatism a contralateral eye study |
| topic | higher order aberrations laser in situ keratomileusis topography-guided customized ablation wavefront optimized ablation |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2018;volume=66;issue=11;spage=1558;epage=1561;aulast=Tiwari |
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