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Review
. 2019 Sep-Oct;8(5):391-396.
doi: 10.1097/01.APO.0000580140.74826.f5.

Astigmatism Correction Using SMILE

Affiliations
Review

Astigmatism Correction Using SMILE

Sharon S W Chow et al. Asia Pac J Ophthalmol (Phila). 2019 Sep-Oct.

Abstract

Small incision lenticule extraction (SMILE) was introduced in the recent decade for the treatment of myopia and myopic astigmatism. This flap-free technique has a high efficacy and safety profile and also carries potential advantages over laser in situ keratomileusis such as a better corneal biomechanical stability, reduction in dry eyes rate, and the avoidance of flap complications. However, there have been concerns regarding the precision of astigmatism correction that undercorrection has been reported to be apparent. Various factors that affect astigmatism correction have been identified in the literature. The purpose of this review is to discuss the factors that affect astigmatism correction in SMILE and several techniques to improve the refractive outcomes.

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Conflict of interest statement

The authors have no conflicts of interest to disclose.

References

    1. Sekundo W, Kunert KS, Blum M. Small incision corneal refractive surgery using the small incision lenticule extraction (SMILE) procedure for the correction of myopia and myopic astigmatism: results of a 6 month prospective study. Br J Ophthalmol 2011; 95:335–339. - PubMed
    1. Xu Y, Yang Y. Dry eye after small incision lenticule extraction and LASIK for myopia. J Refract Surg 2014; 30:186–190. - PubMed
    1. Reinstein DZ, Archer TJ, Randleman JB. Mathematical model to compare the relative tensile strength of the cornea after PRK, LASIK, and small incision lenticule extraction. J Refract Surg 2013; 29:454–460. - PubMed
    1. Moshirfar M, Moshirfar JC, Desautels JD, Birdsong OC, Linn SH, Hoopes PC., Sr Ectasia following small-incision lenticule extraction (SMILE): a review of the literature. Clin Ophthalmol 2017; 11:1683–1688. - PMC - PubMed
    1. Reinstein DZ, Yap TE, Carp GI, Archer TJ, Gobbe M. Reproducibility of manifest refraction between surgeons and optometrists in a clinical refractive surgery practice. J Cataract Refract Surg 2014; 40:450–459. - PubMed