Laser fiducials for axis alignment in cataract surgery

Abstract

A fiducial is generated on an internal anatomical structure of the eye of a patient with a surgical laser. A toric artificial intraocular lens (IOL) is positioned so that a marker of the toric IOL is in a predetermined positional relationship relative to the fiducial. This positioning aligns the toric IOL with the astigmatic or other axis of the eye. The toric IOL is then implanted in the eye of the patient with high accuracy.

Description

[0001] cross reference [0002] This application claims priority to U.S. Provisional Application No. 61 / 813,172, filed April 17, 2013, which is related to U.S. Patent Application Serial No. 14 / 199,087, filed March 6, 2014, entitled "MICROFEMTOTOMYMETHODSANDSYSTEMS," which This application claims priority to US Provisional Application No. 61 / 788,201, the contents of which are incorporated herein by reference for all purposes. The full Paris Convention priority is hereby expressly reserved. Background technique [0003] The present disclosure generally relates to labeling of anatomical features to facilitate treatment of nearby tissue structures, such as eye tissue. Although specific reference is made to marking tissue for procedures such as eye surgery, embodiments as described herein can be used in many ways with many anatomical structures to facilitate the treatment of many tissue structures. [0004] Cutting of material can be done mechanically using chisels, knives, scalp...

AI Technical Summary

Problems solved by technology

[0009] At least some existing laser surgery systems may provide less than ideal results when used to place an intraocular lens in the eye to address ocular aberrations such as lower order aberrations including astigmatism or higher order aberrations

While accommodating IOLs can correct the eye's refractive error and restore accommodation, existing accommodating IOLs may provide less than ideal correction of the eye's astigmatism

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