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Updated: Feb 11, 2026

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
Published on: June 27, 2025
Unilateral corneal ectasia after small-incision lenticule extraction in a 43-year-old patient
Jean Christophe Gavrilov1, Raphael Atia1, Vincent Borderie1
1From the Quinze-Vingts National Ophthalmology Hospital (Gavrilov, Atia, Borderie, Laroche, Bouheraoua) and the Institut de la Vision (Borderie, Laroche, Bouheraoua), UPMC-Sorbonne Universities, INSERM, CNRS UMR 7210, Paris, France.
Abstract:
Unilateral corneal ectasia developed after small-incision lenticule extraction for mild myopia in a 43-year-old man with preoperative asymmetric astigmatism. The ectasia was diagnosed 4 years postoperatively. Preoperative data showed asymmetric astigmatism with no signs of forme fruste keratoconus. Inferior anterior curvature steepening exceeded 2.00 diopters without bulging of the posterior curvature, and pachymetric thickness exceeded 515 μm. Corneal ectasia can occur after small-incision lenticule extraction in patients older than 40 years with preoperative asymmetric astigmatism.
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