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Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Small-incision lenticule extraction vs femtosecond laser-assisted laser in situ keratomileusis for myopia: visual results and predictability

Poster Details

First Author: K.Mehta INDIA

Co Author(s):    C. Mehta                    

Abstract Details


To undertake comparative clinical analysis of the efficacy, safety, and predictability of two surgical procedures (ie, small incision lenticule extraction [SMILE] and femtosecond laser-assisted LASIK [FS-LASIK] in correcting myopia.


Mehta International Eye Institute


155 eyes of patients with a mean spherical equivalent of -6.85 ± 2.25 diopters underwent myopia correction with the SMILE procedure. An equivalent 150 eyes of patients with a mean spherical equivalent of -7.17.± 1.75 diopters were treated with the FS-LASIK procedure. Postoperative uncorrected and corrected distance visual acuity, manifest refraction, and higher-order aberrations were analyzed statistically at 1 and 3 and 6 months post-operatively.


SMILE patients took a month to fully stabilize as compared to FS LASIK, however after a detailed evaluation showed no statistically significant differences were found at 1 and 3 months in. At 3 months, 2 FS Lasik -treated eyes lost one or more line of visual acuity, whereas all SMILE -treated eyes had an unchanged or corrected distance visual acuity. Higher-order aberrations and spherical aberration were significantly lower in the SMILE group than the FS-LASIK group at both 3 1n3 6 months of follow-up.


SMILE and FS-LASIK are undoubtedly safe, effective, and predictable surgical procedures to treat myopia. However SMILE would seem to have a lower rate of higher-order aberrations and spherical aberration than the FS-LASIK procedure. At the 6 month tier both seem to be fairly identical with broad parameters.

Financial Disclosure:

travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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