Methods And Apparatus For Improved Post-Operative Ocular Optical Performance

• US 20140257258A1
• Filed: 05/19/2014
• Published: 09/11/2014
• Est. Priority Date: 11/02/2007
• Status: Abandoned Application

• Current Assignee: Alcon LenSx, Inc. (Alcon Incorporated)
• Original Assignee: Alcon LenSx, Inc. (Alcon Incorporated)
• Inventors: Kurtz, Ronald M.
• Application Number:
  US14/281,330
• Publication Number:
  US 20140257258A1
• Time in Patent Office: Days
• US Class Current: 606/4
• CPC Class Codes: A61B 2090/3937 Visible markers
• CPC Class Codes: A61B 2090/3983 Reference marker arrangements for use with image guided surgery
• CPC Class Codes: A61F 2009/00846 Eyetracking
• CPC Class Codes: A61F 2009/00851 Optical coherence topography [OCT]
• CPC Class Codes: A61F 2009/00855 Calibration of the laser system
• CPC Class Codes: A61F 2009/0087 Lens
• CPC Class Codes: A61F 2009/00872 Cornea
• CPC Class Codes: A61F 2009/0088 based on wavefront
• CPC Class Codes: A61F 2009/00882 based on topography
• CPC Class Codes: A61F 2009/00897 Scanning mechanisms or algorithms
• CPC Class Codes: A61F 9/008 using laser
• CPC Class Codes: A61F 9/00825 for photodisruption
• CPC Class Codes: A61F 9/00827 Refractive correction, e.g. lenticle

Abstract

Techniques, systems are described for performing laser eye surgery. In one aspect, a method for improving an optical function of an eye includes preparing the eye for surgery by determining an optical characteristic of the eye. Laser marking pulses are applied to generate a laser mark in a region of the eye in relation to the determined optical characteristic. Also, a surgical procedure is performed in a surgical region selected in relation to the generated laser mark.

Claims

1. A method of eye surgery, the method comprising:

imaging a portion of an eye with an imaging subsystem;

registering one of a position of an eye axis and a position of an anatomical part of the eye in a non-fixation state of the eye;

registering a relationship of the registered one of a position of an eye axis and a position of an anatomical part of the eye in the non-fixation state to a position of the eye axis and a position of the anatomical part of the eye in a post-fixation state of the eye;

using software of a controller system to calculate a location of an eye surgical procedure based on the registering; and

performing the surgical procedure on the eye.

2. The method of claim 1, wherein:

the imaging subsystem is separated from the laser surgical subsystem.

3. The method of claim 1, wherein:

the imaging subsystem is configured to communicate with the laser surgical subsystem through an interface.

4. The method of claim 1, wherein:

the imaging subsystem is integrated with the laser surgical subsystem.

5. The method of claim 1, the surgical procedure comprising:

applying laser marking pulses to generate a laser mark in a region of the eye.

6. The method of claim 1, the surgical procedure comprising:

scanning with a surgical laser along a surgical pattern in the eye to photodisrupt target tissue along the surgical pattern.

7. The method of claim 1, the surgical procedure comprising:

a surgeon separating an ophthalmic tissue by at least one of tearing, cutting, and aspiration.

8. The method of claim 7, wherein:

the surgical procedure is performed in relation to a laser mark.

9. The method of claim 7, the surgical procedure comprising:

removing laser-photodisrupted target tissue from the eye.

10. The method of claim 1, comprising:

docking a patient interface onto the eye to achieve the post-fixation state of the eye.