Patent ID: 9421131
Filing Date: 2016-08-23
CPC Classification: A61B,A61F

Claim Text:
1. A method of photoaltering a region of an eye using a non-ultraviolet, ultrashort pulsed laser beam, the eye having an iris and a pupil, the method comprising the steps of: producing a first digital image of the eye, the first digital image having a first contrast between the iris and the pupil, manually activating a user-selectable button to increase the first contrast between the iris and the pupil to a second contrast by modifying the digital camera's gamma function from the linear default setting to a non-linear function that enhances contrast of the pixels displayed on the imaging interface between the pupil and darker colored irises, wherein the non-linear function increases the contrast of the pixels displayed on the imaging interface between the pupil and darker colored irises based on values in a look-up table stored in a data storage device; displaying a second digital image of the eye on the imaging interface, the second digital image having the second contrast; centrating the eye based on the second contrast between the iris and the pupil; and directing the non-ultraviolet, ultrashort pulsed laser beam at the region after the step of centrating to photoalter the region.