Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer
AIM: To investigate the changes of corneal biomechanical properties before and after femtosecond laser assisted LASIK(FS-LASIK)using Corneal Visualisation Scheimpflug Technology(Corvis ST)and Ocular Response Analyzer(ORA), and the correlation with other myopic parameters. <p>METHODS:Sixty thre...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Press of International Journal of Ophthalmology (IJO PRESS)
2017-02-01
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| Series: | Guoji Yanke Zazhi |
| Subjects: | |
| Online Access: | http://ies.ijo.cn/cn_publish/2017/2/201702001.pdf |
| _version_ | 1819049338988396544 |
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| author | Jing Li Sheng-Sheng Wei Ya-Qun Wan Yong Li Juan Li Jing Du Jian-Guo Liu |
| author_facet | Jing Li Sheng-Sheng Wei Ya-Qun Wan Yong Li Juan Li Jing Du Jian-Guo Liu |
| author_sort | Jing Li |
| collection | DOAJ |
| description | AIM: To investigate the changes of corneal biomechanical properties before and after femtosecond laser assisted LASIK(FS-LASIK)using Corneal Visualisation Scheimpflug Technology(Corvis ST)and Ocular Response Analyzer(ORA), and the correlation with other myopic parameters. <p>METHODS:Sixty three patients(63 eyes)who had myopic femtosecond laser assisted LASIK(FS-LASIK)were enrolled in the study. The right eye of each patient was analyzed in this study. The corneal biomechanical parameters pre-operative and 1mo post-operative was measured with the Corvis ST(Oculus, Wetzlar, Germany)and ORA(Reichert, Buffalo, New York, USA). Comparison of the biomechanical property values before and after surgery was peformed using Paired <i>t</i>-test or Mann-Whitney <i>U</i>. Pearson or Spearman correlations were used to evaluate the relationship between parameters.<p>RESULTS: The postoperative 1<sup>st</sup> A-time, Vin, 2<sup>nd</sup> A length, Vout, HC time and Radius demonstrate significant decreases comparing with preoperative values(<i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00 respectively). The postoperative 2<sup>nd</sup> A-time, DA and PD significantly increases(<i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00), however, the 1<sup>st</sup> A length had no significant difference after surgery. The CH and CRF were significantly lower after FS-LASIK(<i>P</i>=0.00, <i>P</i>=0.00). A statistically significant correlation coefficient was found between preoperative central corneal thickness(CCT)with postoperative-preoperative changes of 1<sup>st</sup> A-time, 2<sup>nd</sup> A-time, DA and Radius respectively(<i>P</i>=0.01, <i>P</i>=0.04, <i>P</i>=0.03, <i>P</i>=0.01). <p>CONCLUSION:There were significantly changes of corneal biomechanical properties after FS-LASIK surgery. The changes of corneal biomechanical properties after FS-LASIK can be reflected by some parameters of Corvis ST and ORA. The mainly influence of corneal biomechanical alteration was possibly correlation with corneal thickness. |
| first_indexed | 2024-12-21T11:30:34Z |
| format | Article |
| id | doaj.art-4bc7ad19f20f4132a2d344a162304203 |
| institution | Directory Open Access Journal |
| issn | 1672-5123 1672-5123 |
| language | English |
| last_indexed | 2024-12-21T11:30:34Z |
| publishDate | 2017-02-01 |
| publisher | Press of International Journal of Ophthalmology (IJO PRESS) |
| record_format | Article |
| series | Guoji Yanke Zazhi |
| spelling | doaj.art-4bc7ad19f20f4132a2d344a1623042032022-12-21T19:05:33ZengPress of International Journal of Ophthalmology (IJO PRESS)Guoji Yanke Zazhi1672-51231672-51232017-02-0117219519910.3980/j.issn.1672-5123.2017.2.01Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzerJing Li0Sheng-Sheng Wei1Ya-Qun Wan2Yong Li3Juan Li4Jing Du5Jian-Guo Liu6Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.Co-first authors: Jing Li and Sheng-Sheng WeiRefractive surgery Center, Department of Ophthalmology, Xi'an No.4 Hospital, Xi'an 710004, Shaanxi Province, China.AIM: To investigate the changes of corneal biomechanical properties before and after femtosecond laser assisted LASIK(FS-LASIK)using Corneal Visualisation Scheimpflug Technology(Corvis ST)and Ocular Response Analyzer(ORA), and the correlation with other myopic parameters. <p>METHODS:Sixty three patients(63 eyes)who had myopic femtosecond laser assisted LASIK(FS-LASIK)were enrolled in the study. The right eye of each patient was analyzed in this study. The corneal biomechanical parameters pre-operative and 1mo post-operative was measured with the Corvis ST(Oculus, Wetzlar, Germany)and ORA(Reichert, Buffalo, New York, USA). Comparison of the biomechanical property values before and after surgery was peformed using Paired <i>t</i>-test or Mann-Whitney <i>U</i>. Pearson or Spearman correlations were used to evaluate the relationship between parameters.<p>RESULTS: The postoperative 1<sup>st</sup> A-time, Vin, 2<sup>nd</sup> A length, Vout, HC time and Radius demonstrate significant decreases comparing with preoperative values(<i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00 respectively). The postoperative 2<sup>nd</sup> A-time, DA and PD significantly increases(<i>P</i>=0.00, <i>P</i>=0.00, <i>P</i>=0.00), however, the 1<sup>st</sup> A length had no significant difference after surgery. The CH and CRF were significantly lower after FS-LASIK(<i>P</i>=0.00, <i>P</i>=0.00). A statistically significant correlation coefficient was found between preoperative central corneal thickness(CCT)with postoperative-preoperative changes of 1<sup>st</sup> A-time, 2<sup>nd</sup> A-time, DA and Radius respectively(<i>P</i>=0.01, <i>P</i>=0.04, <i>P</i>=0.03, <i>P</i>=0.01). <p>CONCLUSION:There were significantly changes of corneal biomechanical properties after FS-LASIK surgery. The changes of corneal biomechanical properties after FS-LASIK can be reflected by some parameters of Corvis ST and ORA. The mainly influence of corneal biomechanical alteration was possibly correlation with corneal thickness.http://ies.ijo.cn/cn_publish/2017/2/201702001.pdfmyopia; corneal biomechanical property; femtosecond laser; laser <i>in situ</i> keratomileusis; corneal visualization Scheimpflug technologymyopia; corneal biomechanical property; femtosecond laser; laser in situ keratomileusis; corneal visualization Scheimpflug technology |
| spellingShingle | Jing Li Sheng-Sheng Wei Ya-Qun Wan Yong Li Juan Li Jing Du Jian-Guo Liu Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer Guoji Yanke Zazhi myopia; corneal biomechanical property; femtosecond laser; laser <i>in situ</i> keratomileusis; corneal visualization Scheimpflug technology myopia; corneal biomechanical property; femtosecond laser; laser in situ keratomileusis; corneal visualization Scheimpflug technology |
| title | Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer |
| title_full | Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer |
| title_fullStr | Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer |
| title_full_unstemmed | Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer |
| title_short | Corneal biomechanical properties after femtosecond laser assisted LASIK with the corneal visualization Scheimpflug technology and ocular response analyzer |
| title_sort | corneal biomechanical properties after femtosecond laser assisted lasik with the corneal visualization scheimpflug technology and ocular response analyzer |
| topic | myopia; corneal biomechanical property; femtosecond laser; laser <i>in situ</i> keratomileusis; corneal visualization Scheimpflug technology myopia; corneal biomechanical property; femtosecond laser; laser in situ keratomileusis; corneal visualization Scheimpflug technology |
| url | http://ies.ijo.cn/cn_publish/2017/2/201702001.pdf |
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