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Visual and refractive outcomes of 100 small incision lenticule extractions (SMILE) in moderate and high myopia: a 24-month follow-up study

  • Refractive Surgery
  • Published:
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Abstract

Purpose

We aimed to present the visual results obtained in 100 small incision lenticule extraction (SMILE) refractive surgeries, demonstrate whether the technique is effective in the treatment of moderate and high myopia, and observe the follow-up of these patients over 24-month period.

Methods

One hundred eyes of 50 consecutive patients were treated with SMILE. The preoperative spherical equivalent refraction was − 5.64 ± 1.23 D. During the postoperative period, patients were examined at 3, 6, 12, and 24 months. We analysed the efficacy, safety, predictability, and stability of the technique.

Results

The Snellen visual acuity of 99% of the patients was 20/20 or better after 24 months of follow-up. Two eyes had a loss of two lines of visual acuity; 1% of the patients had a loss of one line of visual acuity. The postoperative spherical refraction was − 0.04 ± 0.35 D (− 1.00 to 0.50 D). The postoperative spherical equivalent refraction was − 0.19 ± 0.38 D (− 1.25 to 0.50 D). Eighty-three percent of the eyes were within ± 0.50 D, and 87% obtained a residual astigmatism of 0.50 D or less.

Conclusion

The SMILE technique was demonstrated to be an effective, predictable, safe, and stable technique in the treatment of moderate-to-severe myopia during the 24-month follow-up. Long-term follow-up should be undertaken to observe possible refractive regressions.

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Acknowledgments

Data collection and support help: Amián-Cordero, Jonatan; Hernández-Barahona, Mariano; Castellanos-Gómez, Ignacio; Socas-Priego, Luisa and López-Martos, Nino.

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Authors and Affiliations

  1. Department of Physics of Condensed Matter, Optics Area, University of Seville, Reina Mercedes St. Physic Faculty, Seville, Spain

    José-María Sánchez-González

  2. Department of Ophthalmology, Tecnolaser Clinic Vision®, Refractive Surgery Centre, Juan Antonio Cavestany 14 Street, Seville, Spain

    Federico Alonso-Aliste

Authors
  1. José-María Sánchez-González
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  2. Federico Alonso-Aliste
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Corresponding author

Correspondence to José-María Sánchez-González.

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Conflict of interest

Sánchez-González, José-María declares that he has no conflict of interest. Alonso-Aliste, Federico declares that he has no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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The authors whose names are listed immediately below certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.

•Sánchez-González, José-María

•Alonso-Aliste, Federico

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The corresponding author is who receive reprints

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Sánchez-González, JM., Alonso-Aliste, F. Visual and refractive outcomes of 100 small incision lenticule extractions (SMILE) in moderate and high myopia: a 24-month follow-up study. Graefes Arch Clin Exp Ophthalmol 257, 1561–1567 (2019). https://doi.org/10.1007/s00417-019-04349-4

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  • DOI: https://doi.org/10.1007/s00417-019-04349-4

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