On the Relationship between Corneal Biomechanics, Macrostructure, and Optical Properties

Journal of Imaging

Laura Remón¹  Francisco J. Ávila¹  Maria Concepción Marcellán¹ 

[1] Departamento de Física Aplicada, Universidad de Zaragoza, 50009 Zaragoza, Spain;

关键词: corneal biomechanics;    corneal structure;    corneal aberrations;    optical density;    Scheimpflug imaging;    ocular response analyzer;   

DOI  :  10.3390/jimaging7120280

来源: DOAJ

【 摘 要 】

Optical properties of the cornea are responsible for correct vision; the ultrastructure allows optical transparency, and the biomechanical properties govern the shape, elasticity, or stiffness of the cornea, affecting ocular integrity and intraocular pressure. Therefore, the optical aberrations, corneal transparency, structure, and biomechanics play a fundamental role in the optical quality of human vision, ocular health, and refractive surgery outcomes. However, the inter-relationships of those properties are not yet reported at a macroscopic scale within the hierarchical structure of the cornea. This work explores the relationships between the biomechanics, structure, and optical properties (corneal aberrations and optical density) at a macro-structural level of the cornea through dual Placido–Scheimpflug imaging and air-puff tonometry systems in a healthy young adult population. Results showed correlation between optical transparency, corneal macrostructure, and biomechanics, whereas corneal aberrations and in particular spherical terms remained independent. A compensation mechanism for the spherical aberration is proposed through corneal shape and biomechanics.

【 授权许可】

Unknown