Official ESCRS | European Society of Cataract & Refractive Surgeons


Comparative evaluation of visual quality, ocular surface and corneal biomechanics with small incision lenticule extraction and femtosecond laser-assisted in-situ keratomileusis

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Session Details

Session Title: Small Incision Lenticule Extraction II

Session Date/Time: Monday 16/09/2019 | 16:30-18:00

Paper Time: 17:00

Venue: Free Paper Forum: Podium 3

First Author: : J.Titiyal INDIA

Co Author(s): :    A. Brar   M. Kaur   N. Sharma                       

Abstract Details


To compare visual and anatomical outcomes of femtosecond laser-assisted in-situ keratomileusis (FS-LASIK) and small incision lenticule extraction(SMILE) in moderate-high myopia.


Dr RP Centre for Ophthalmic Sciences, AIIMS, New Delhi.


Prospective comparative evaluation of 80 eyes undergoing FS-LASIK (n=40) or SMILE (n=40). Primary outcome measures were visual acuity and quality. Secondary outcome measures were ocular surface stability, corneal biomechanics and subbasal nerve fibre density (SNFD). Follow up was performed on day 1, 30 and 6 months.


At 6 months, uncorrected visual acuity was comparable in both groups (p=0.65). Visual quality (higher order aberrations) was significantly better with SMILE (p<0.001). Tear-film breakup time (p<0.001), Schirmer test (p=0.02) and SNFD (p<0.001) was significantly better in SMILE group at all follow up visits. Ocular hysteresis was better in SMILE group (p<0.001).


SMILE leads to better visual quality, ocular surface and biomechanical stability as compared with FS-LASIK.

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