Higher order aberrations in keratoconus: A review

This paper describes the challenges in measuring and correcting the optical aberrations in keratoconic eyes, and reviews what has been learned from studies investigating the use of aberration-controlling contact lenses in keratoconus. At present the idea of aberration-controlling contact lenses is plausible. If contact lens designers can manufacture customised lenses with accuracy and good movement stability, then aberration-controlling contact lenses could possibly prove to be a very useful tool for those involved in managing keratoconic patients.