Optical system for ophthalmic surgical laser

Abstract

A laser system for ophthalmic surgery includes a laser source to produce a surgical pulsed laser beam, an XY scanner to scan the surgical pulsed laser beam in XY transverse directions, a Z scanner, to scan the XY scanned laser beam along a Z axis, an objective, to focus the XYZ scanned beam into a focal spot in a target region, and a computational controller, to use a computational process to control at least one of the Z scanner and the XY scanner, to control an optical distortion of the focused scanned beam.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to Utility Model Application Serial No. 12 / 511,961, "Optical System for Ophthalmic Surgical Laser," filed July 29, 2009, which application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to systems for surgery on the anterior segment of the eye using femtosecond lasers, and more particularly to embodiments that minimize optical distortion of the laser beam while scanning and focusing the laser beam into the eye. Background technique [0004] The present application describes examples and embodiments of techniques and systems for laser surgery of the lens within the anterior segment of the eye by photodisruption caused by laser pulses. The various lens surgery procedures used to remove the lens utilize various techniques to break the lens into small pieces that can be removed from the eye through small incisio...

AI Technical Summary

Problems solved by technology

These procedures use manual devices, ultrasound, heated fluid, or lasers and tend to have significant disadvantages, including the need to enter the eye with a probe to achieve fragmentation, and the limited precision associated with such lens fragmentation techniques

Therefore, these designs do not provide a solution for the significant challenge of operating on the lens of the eye

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