Open Access

Implantable collamer lens with a central hole for residual refractive error correction after corneal refractive surgery

  • Authors:
    • Jing Zhang
    • Fanglin He
    • Yan Liu
    • Xianqun Fan
  • View Affiliations

  • Published online on: October 7, 2020     https://doi.org/10.3892/etm.2020.9289
  • Article Number: 160
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present study aimed to assess the visual and refractive outcomes of an implantable collamer lens with a central hole (ICL V4c) for residual refractive error correction after corneal refractive surgery in individuals with myopia. A total of 16 eyes of eight consecutive patients with myopia undergoing ICL V4c implantation after corneal refractive surgery were investigated. The uncorrected visual acuity (VA) and best‑corrected VA were examined prior to surgery and at 1, 3 and 6 months after surgery. The post‑operative values of the modulation transfer function (MTF) cutoff frequency, Strehl ratio (SR), objective scattering index (OSI) and Optical Quality Analysis System (OQAS) values (OVs) were quantitatively assessed using an OQAS. At 6 months after surgery, the mean uncorrected LogMAR VA was 0.06±0.10 and the values had improved in 100% of the eyes. The mean MTF cutoff frequency, SR, OSI, OV 100%, OV 20% and OV 9%, were 31.294±4.321 cycles/degree, 0.187±0.039, 1.399±0.274, 1.066±0.261, 0.748±0.287 and 0.509±0.229, respectively. In conclusion, ICL V4c implantation for the correction of residual refractive error after corneal refractive surgery appeared feasible and safe and also had an excellent optical performance. However, long‑term changes in visual quality require further investigation.
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December-2020
Volume 20 Issue 6

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Zhang J, He F, Liu Y and Fan X: Implantable collamer lens with a central hole for residual refractive error correction after corneal refractive surgery. Exp Ther Med 20: 160, 2020
APA
Zhang, J., He, F., Liu, Y., & Fan, X. (2020). Implantable collamer lens with a central hole for residual refractive error correction after corneal refractive surgery. Experimental and Therapeutic Medicine, 20, 160. https://doi.org/10.3892/etm.2020.9289
MLA
Zhang, J., He, F., Liu, Y., Fan, X."Implantable collamer lens with a central hole for residual refractive error correction after corneal refractive surgery". Experimental and Therapeutic Medicine 20.6 (2020): 160.
Chicago
Zhang, J., He, F., Liu, Y., Fan, X."Implantable collamer lens with a central hole for residual refractive error correction after corneal refractive surgery". Experimental and Therapeutic Medicine 20, no. 6 (2020): 160. https://doi.org/10.3892/etm.2020.9289