Factors influencing astigmatic correction outcomes following small incision lenticule extraction
Liu Caiyu
Yang Fangwen
Ou Shangkun
Abstract：Femtosecond laser small incision corneal stromal lenticule extraction(SMILE)is a representative of the new generation of refractive surgeries,which is a minimally invasive and flapless refractive correction procedure based on femtosecond laser technology.This surgical method,with its outstanding corneal biomechanical stability and relatively minor damage to the nerve plexus of the stromal layer,has established a dominant position in the field of myopia and astigmatism correction.However,current clinical studies have shown that although SMILE surgery demonstrates good safety and effective-ness in myopia and astigmatism correction,postoperative refractive undercorrection and regression phenomena still cannot be ignored,and this phenomenon is particularly prominent in patients with high astigmatism.This review systematically analyzed the multiple factors that affect the refractive correction effect of SMILE surgery,aiming to provide theoretical basis and deci-sion-making references for clinical practice.
Keywords：AstigmatismSmall incision lenticule extractionVisual qualityCorrection outcomeInfluence factors
Publication Date：2026-01-18
Online Publishing Date：2026-02-04(First online date of this platform, not the publication date of the document)
Pages：5( 121-125 )