
Wavefront analysis of the human eye is based on an optical theory that was first developed in astronomy more than 100 years ago, with roots that date back almost 400 years. Astronomers used the technology to reduce higher order aberrations (HOAs) induced by the earth's atmosphere. Recognising the potential of this analysis in ocular refractive surgery, manufacturers have recently introduced wavefront technology into several major laser systems in order to improve treatment outcomes and address HOAs within the visual system.