Patent ID: 9192296
Filing Date: 2015-11-24
Classification: A61B

Abstract:
1. A method of performing measurements on the eye of a subject, said method comprising: providing a combination system comprising a wavefront analysis system and a corneal topography system that are commonly centered and boresighted to each other on a common optical axis by previous alignment, the corneal topography system including a visual camera system; generating visual images including the pupil of said eye using said camera system; analyzing said visual images obtained by said camera system to determine the central point of the pupil of said eye; laterally adjusting said combination wavefront analysis system and corneal topography system to co-align their common optical axis and the central point of the pupil; projecting an image of a centering object onto said eye; moving said combination system longitudinally to obtain the position of optimum focus of said image of said centering object; and thereafter using in order to center the apex of the cornea of said eye relative to said combination wavefront analysis and corneal topography system.