Comparison of Corneal Deformation Parameters in Keratoconic and Normal Eyes Using a Non-contact Tonometer With a Dynamic Ultra-High-Speed Scheimpflug Camera

Historically, keratoconus evaluation has been based on clinical examination and diagnostic information such as corneal topography, tomography, and corneal thickness distribution. It has been suggested that the inability to directly measure biomechanical parameters of the cornea has been a limitation for in vivo evaluation of the cornea.1 The fact remains that biomechanical properties are involved in maintaining corneal geometrical and optical properties.2,3 In 2005, the Ocular Response Analyzer (ORA; Reichert Ophthalmic Instruments, Depew, NY) was introduced as a non-contact tonometer that

Source: Journal of Refractive Surgery - September 7, 2017 Category: Opthalmology Authors: Ryan N. Mercer, MD Source Type: research