ArticleInternational ophthalmology2026
Comparison of the visual and optical outcomes after different corneal refractive surgeries for asymmetric corneal astigmatism.
Article in International ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo compare visual and optical outcomes after selective corneal wavefront aberration-guided femtosecond laser-assisted in situ keratomileusis (CW-FS-LASIK), aspheric aberration-free femtosecond laser-assisted in situ keratomileusis (AF-FS-LASIK), and small-incision lenticule extraction (SMILE) in patients with asymmetric corneal astigmatism.
methodsThis retrospective comparative study included 269 patients (269 eyes) who underwent CW-FS-LASIK (67 eyes), AF-FS-LASIK (69 eyes), or SMILE (133 eyes) for myopia with asymmetric corneal astigmatism. Asymmetric corneal astigmatism was defined as an inferior-superior (I-S) dioptric difference of at least 1.00 D within the central 3 mm anterior corneal zone on the anterior sagittal curvature map. Visual and refractive outcomes, functional optical zone (FOZ), decentration, and corneal higher-order aberrations (HOAs) at analysis diameters of 4 and 6 mm were compared at 1 month postoperatively.
resultsBaseline characteristics were comparable among the three groups except for sex distribution. At 1 month, visual and refractive outcomes were comparable, and no significant difference in decentration was observed. FOZ was larger in the SMILE group than in the other groups (P < 0.001). At the 4 mm analysis diameter, postoperative total HOAs and total coma were lower in the CW-FS-LASIK group. At the 6 mm analysis diameter, induced total coma was lowest in the CW-FS-LASIK group, whereas induced spherical aberration was lowest in the SMILE group.
conclusionsAll three procedures achieved similarly favorable early visual and refractive outcomes in eyes with asymmetric corneal astigmatism. CW-FS-LASIK showed lower corneal coma, but its clinical relevance remains uncertain and requires further validation with patient-reported outcomes.
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