Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism
Purpose: This study aimed to evaluate the outcomes of astigmatic correction by single-step transepithelial photorefractive keratectomy (TransPRK) and femtosecond-assisted laser in-situ keratomileusis (Femto-LASIK) surgeries. Methods: A total of 218 subjects received TransPRK or Femto-LASIK surgery f...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2022-01-01
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| Series: | Indian Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3483;epage=3489;aulast=Sun |
| _version_ | 1797995932929753088 |
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| author | Lixia Sun Vishal Jhanji Senmao Li Jinyu Li Ruifeng Ji Hongqiang Zeng Tsz Kin Ng Mingzhi Zhang Riping Zhang |
| author_facet | Lixia Sun Vishal Jhanji Senmao Li Jinyu Li Ruifeng Ji Hongqiang Zeng Tsz Kin Ng Mingzhi Zhang Riping Zhang |
| author_sort | Lixia Sun |
| collection | DOAJ |
| description | Purpose: This study aimed to evaluate the outcomes of astigmatic correction by single-step transepithelial photorefractive keratectomy (TransPRK) and femtosecond-assisted laser in-situ keratomileusis (Femto-LASIK) surgeries. Methods: A total of 218 subjects received TransPRK or Femto-LASIK surgery for the treatment of myopia and astigmatism (−2.25 to −0.25 D). Refraction errors and uncorrected (UDVA) and corrected distance visual acuity (CDVA) were examined before and at 3 months after surgery. Astigmatism changes were assessed by vector analysis. Results: Preoperative parameters of the TransPRK group were similar to the Femto-LASIK group. UDVA and CDVA at 3 months were similar between both groups. Manifest refraction (MR) spherical equivalent in the TransPRK group (0 ± 0.20 D) was slightly lower compared with the Femto-LASIK group at 3 months (0.11 ± 0.25 D, P = 0.001). MR cylinder was -0.06 ± 0.19 D in the TransPRK group and -0.02 ± 0.15 D in the Femto-LASIK group at 3 months (P = 0.135). The index of success (IS) was 0.15 ± 0.36 in the TransPRK group and 0.06 ± 0.17 in the Femto-LASIK group (P = 0.125). The correction index (CI) was 1.03 ± 0.19 in the TransPRK group and 1.01 ± 0.11 in the Femto-LASIK group (P = 0.815). Conclusion: For low to moderate myopic astigmatism, TransPRK provided a comparable astigmatic treatment effect as Femto-LASIK. Myopic astigmatism was both slightly overcorrected after TransPRK and Femto-LASIK surgeries. |
| first_indexed | 2024-04-11T10:09:31Z |
| format | Article |
| id | doaj.art-652744ab698340498bc3bf2e0c3f804b |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-04-11T10:09:31Z |
| publishDate | 2022-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-652744ab698340498bc3bf2e0c3f804b2022-12-22T04:30:09ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892022-01-0170103483348910.4103/ijo.IJO_649_22Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatismLixia SunVishal JhanjiSenmao LiJinyu LiRuifeng JiHongqiang ZengTsz Kin NgMingzhi ZhangRiping ZhangPurpose: This study aimed to evaluate the outcomes of astigmatic correction by single-step transepithelial photorefractive keratectomy (TransPRK) and femtosecond-assisted laser in-situ keratomileusis (Femto-LASIK) surgeries. Methods: A total of 218 subjects received TransPRK or Femto-LASIK surgery for the treatment of myopia and astigmatism (−2.25 to −0.25 D). Refraction errors and uncorrected (UDVA) and corrected distance visual acuity (CDVA) were examined before and at 3 months after surgery. Astigmatism changes were assessed by vector analysis. Results: Preoperative parameters of the TransPRK group were similar to the Femto-LASIK group. UDVA and CDVA at 3 months were similar between both groups. Manifest refraction (MR) spherical equivalent in the TransPRK group (0 ± 0.20 D) was slightly lower compared with the Femto-LASIK group at 3 months (0.11 ± 0.25 D, P = 0.001). MR cylinder was -0.06 ± 0.19 D in the TransPRK group and -0.02 ± 0.15 D in the Femto-LASIK group at 3 months (P = 0.135). The index of success (IS) was 0.15 ± 0.36 in the TransPRK group and 0.06 ± 0.17 in the Femto-LASIK group (P = 0.125). The correction index (CI) was 1.03 ± 0.19 in the TransPRK group and 1.01 ± 0.11 in the Femto-LASIK group (P = 0.815). Conclusion: For low to moderate myopic astigmatism, TransPRK provided a comparable astigmatic treatment effect as Femto-LASIK. Myopic astigmatism was both slightly overcorrected after TransPRK and Femto-LASIK surgeries.http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3483;epage=3489;aulast=Sunastigmatismkeratorefractive surgerylow to moderate myopiavector analysis |
| spellingShingle | Lixia Sun Vishal Jhanji Senmao Li Jinyu Li Ruifeng Ji Hongqiang Zeng Tsz Kin Ng Mingzhi Zhang Riping Zhang Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism Indian Journal of Ophthalmology astigmatism keratorefractive surgery low to moderate myopia vector analysis |
| title | Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism |
| title_full | Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism |
| title_fullStr | Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism |
| title_full_unstemmed | Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism |
| title_short | Vector analysis of astigmatic correction after single-step transepithelial photorefractive keratectomy and femtosecond-assisted laser in-situ keratomileusis for low to moderate myopic astigmatism |
| title_sort | vector analysis of astigmatic correction after single step transepithelial photorefractive keratectomy and femtosecond assisted laser in situ keratomileusis for low to moderate myopic astigmatism |
| topic | astigmatism keratorefractive surgery low to moderate myopia vector analysis |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2022;volume=70;issue=10;spage=3483;epage=3489;aulast=Sun |
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