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Prophylactic corneal crosslinking in myopic small-incision lenticule extraction - Long-term visual and refractive
José-María Sánchez-González1, Carlos Rocha-de-Lossada2, Davide Borroni3
1Department of Physics of Condensed Matter, Optics Area, University of Seville; Department of Ophthalmology, Tecnolaser Clinic Vision®, Seville, Spain.
Purpose:
To analyze the efficacy, safety, predictability, and stability in myopic and astigmatic small-incision lenticule extraction (SMILE) with simultaneous prophylactic corneal crosslinking (CXL) in thin corneas.
Methods:
A total of 48 eyes from 24 patients who underwent myopic and astigmatism SMILE with simultaneous prophylactic CXL were included in this retrospective study. All patients had a 24-month follow-up. A femtosecond laser was performed with VisuMax (Carl Zeiss Meditec). CXL treatment was applied when the predicted stromal thickness was less than 330 μm.
Results:
The patients' mean age was 31.58 ± 6.23 years. The previous mean spherical equivalent was - 6.85 ± 1.80 (-9.75 to - 2.00) D. The postoperative mean spherical equivalent was - 0.50 ± 0.26 (-1.00 to + 0.25) D; 60% of the eyes had 20/20 or better; 19% lost one line; 58% were within ± 0.50 D; and 8.3% of the eyes changed 0.50 D or more between 3 and 24 months.
Conclusion:
Prophylactic CXL with simultaneous SMILE for myopia and astigmatism femtosecond laser surgery technique appears to be partially effective, safe, predictable, and stable after 24 months of follow-up.
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