Advances in biomechanical effects of femtosecond laser corneal refractive surgery

Authors: Zhang Yaohua,  Wang Yan

DOI: 10.3760/cma.j.cn115989-20200512-00339
Published 2020-06-10
Cite as Chin J Exp Ophthalmol, 2020,38(06): 534-538.

Abstract

Femtosecond laser has been widely used in corneal refractive surgery.The refractive state, corneal tissue structure and biomechanical properties are changed through cutting the corneal tissue.Femtosecond laser-assisted in situ keratomileusis(FS-LASIK)and small incision lenticule extraction(SMILE)are the most commonly used femtosecond laser corneal refractive surgery.In this study, the structural basis of corneal biomechanical properties, the commonly used methods for corneal biomechanics measuring, biomechanical effect of corneal flap thickness, side-cut angles, residual stromal bed thickness, flap hinge position for F-LASIK and the size of corneal incision, optical zone diameter, cap thickness, tissue cutting thickness for SMILE on corneal biomechanics are reviewed.

Key words:

Femtosecond laser; Refractive surgery; Biomechanics; Femtosecond laser-assisted in situ keratomileusis; Small incision lenticule extraction

Contributor Information

Zhang Yaohua
Clinical College of Ophthalmology, Tianjin Medical University, Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
Wang Yan
Clinical College of Ophthalmology, Tianjin Medical University, Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Visual Science, Tianjin 300020, China
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Updated: July 2, 2020 — 1:33 am