Effects of LASIK on Biomechanical Properties of Human Cornea / 医用生物力学
Journal of Medical Biomechanics
;
(6): E304-E310, 2020.
Artículo
en Chino
| WPRIM
| ID: wpr-862385
ABSTRACT
Objective To study the changes in biomechanical properties of human cornea after laser in situ keratomileusis (LASIK) and predict corneal stiffness after the LASIK surgery. Methods According to the measurement results from corneal visualization scheimpflug technology (Corvis ST), the corneal tangent stiffness coefficient (STSC) and energy absorbed area (Aabsorbed) were calculated. The change patterns of corneal stiffness and viscosity after refractive surgery were analyzed. Results The difference of corneal STSC and Aabsorbed before and after LASIK had a statistical significance (P<0.05). The obtained formula for predicting corneal stiffness after refractive surgery was Sbefore surgery =1.055bIOPbefore surgery + 0.015CCTbefore surgery,Safter surgery =0.937Sbefore surgery +0.019CCTafter surgery. Conclusions LASIK surgery not only changes corneal thickness, but also reduces corneal stiffness and viscosity. Prediction of corneal stiffness after surgery can provide guidance for the design of clinical surgery and improve the safety of surgery.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Guía de Práctica Clínica
Idioma:
Chino
Revista:
Journal of Medical Biomechanics
Año:
2020
Tipo del documento:
Artículo
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