Open AccessAstigmatism Correction Using SMILE
Author(s) -
Sharon S W Chow,
Loraine L. W. Chow,
Chester Z Lee,
Tommy C.Y. Chan
Publication year - 2019
Publication title -
asia-pacific journal of ophthalmology
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.163
H-Index - 20
ISSN - 2162-0989
DOI - 10.1097/01.apo.0000580140.74826.f5
Subject(s) - keratomileusis , astigmatism , optometry , medicine , corneal topography , ophthalmology , reduction (mathematics) , cornea , optics , mathematics , physics , geometry
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.