Aberrometry: basic science and clinical applications.

Wavefront refraction and correction.

Galileo Galilei, the father of experimental science, taught that to understand nature, you must measure nature. Galileo’s contemporary, Christophoro Scheiner, explored the nature of eyes as optical instruments and discovered how to measure the eye’s focusing distance simply by viewing a point of light through closely spaced pinholes in an opaque card. Two centuries later, Thomas Young used Sche...

Aberrometry: clinical and research applications.

O ptometry has a history of taking the lead in correcting the optical defects of the eye. While the primary definition of optometry has changed as the profession has expanded its scope of practice, the secondary definition of optometry has remained unchanged. The second definition of optometry is the use of an optometer. The definition of optometer is any of several objective or subjective devi...

Aberrometry: the past, present, and future of optometry.

Avefront Analysis Based on Zernike Polynomials

The simulation of optical wavefront decomposition on Zernike polynomials based on the multi-channel diffractive optical element (DOE) was performed. This approach is an alternative to classical wavefront sensors and may be used to determine weighted values of aberrations in the analysed wavefront in real time thus, facilitating the aberrometry analysis of the human eye optical system. An invest...

Evaluation of Corneal Aberrometry Parameters Before and After Cross-Linking in Patients with Keratoconus

Background and Objective: In the last decade, cross-linking (CXL) has been widely used for treating people with progressive keratoconus. The present study aimed to compare corneal aberrometry parameters before and after CXL in patients with keratoconus. Materials and Methods: In this cross-sectional study, 67 patients with keratoconus referred to Farshchian Sina Medical Education Center, Hamad...