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Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics

  • Authors:
    • Yinjuan Wei
    • Lingxiao Xu
    • Hui Song
  • View Affiliations / Copyright

    Affiliations: Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin Eye Institute, Clinical College of Ophthalmology, Tianjin Medical University, Tianjin 300020, P.R. China
    Copyright: © Wei et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1626-1632
    |
    Published online on: June 26, 2017
       https://doi.org/10.3892/etm.2017.4675
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Abstract

The aim of the present study was to evaluate the effects of femtosecond laser-assisted cataract surgery (FLACS) and phacoemulsification on corneal biomechanics using corneal visualization Scheimpflug technology. The medical records of 50 eyes from 50 patients who received phacoemulsification and intraocular lens implantation because of age-related factors between June 2014 and September 2014 were retrospectively analyzed. FLACS was used in 12 eyes (FLACS group), and conventional phacoemulsification in 38 eyes (PHACO group). The evaluation of corneal biomechanical parameters included the first/second applanation time (A-time1/A-time2), the first/second applanation length (A-length1/A-length2), corneal velocity during the first/second applanation moment (Vin/Vout), highest concavity time, highest concavity-radius (HC-radius), peak distance (PD), deformation amplitude (DA), central corneal thickness (CCT), and intraocular pressure (IOP). The differences in A-length1/A‑length2, IOP, CCT, PD, and DA were significant in the PHACO group between those before, 1 week after, and 1 month after surgery. No significant differences in corneal biomechanical parameters were found between those at 1 month after surgery and before surgery. There were significant differences in IOP and CCT in the FLACS group between those before, 1 week after, and 1 month after surgery. There were no significant differences in the other corneal biomechanical parameters. No significant differences were found in corneal biomechanical parameters between those 1 month after surgery and before surgery. There were significant differences in A-length1/A‑length2, CCT, PD, and DA between the two groups at 1 week after surgery. There were no significant differences in corneal biomechanical parameters between the two groups at 1 month after surgery. In conclusion, the effect of FLACS on corneal biomechanics is smaller than that of phacoemulsification. The corneal biomechanical parameters are restored to preoperative levels with the healing of the incision, and the reduction of swelling of the tissue near the incision.
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Copy and paste a formatted citation
Spandidos Publications style
Wei Y, Xu L and Song H: Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics. Exp Ther Med 14: 1626-1632, 2017.
APA
Wei, Y., Xu, L., & Song, H. (2017). Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics. Experimental and Therapeutic Medicine, 14, 1626-1632. https://doi.org/10.3892/etm.2017.4675
MLA
Wei, Y., Xu, L., Song, H."Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics". Experimental and Therapeutic Medicine 14.2 (2017): 1626-1632.
Chicago
Wei, Y., Xu, L., Song, H."Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics". Experimental and Therapeutic Medicine 14, no. 2 (2017): 1626-1632. https://doi.org/10.3892/etm.2017.4675
Copy and paste a formatted citation
x
Spandidos Publications style
Wei Y, Xu L and Song H: Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics. Exp Ther Med 14: 1626-1632, 2017.
APA
Wei, Y., Xu, L., & Song, H. (2017). Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics. Experimental and Therapeutic Medicine, 14, 1626-1632. https://doi.org/10.3892/etm.2017.4675
MLA
Wei, Y., Xu, L., Song, H."Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics". Experimental and Therapeutic Medicine 14.2 (2017): 1626-1632.
Chicago
Wei, Y., Xu, L., Song, H."Application of Corvis ST to evaluate the effect of femtosecond laser-assisted cataract surgery on corneal biomechanics". Experimental and Therapeutic Medicine 14, no. 2 (2017): 1626-1632. https://doi.org/10.3892/etm.2017.4675
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