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Title:
【発明の名称】屈折型レーザ・システムのための眼球追尾/位置決めシステム
Document Type and Number:
Japanese Patent JP2003506139
Kind Code:
A
Abstract:
An eye tracking and positioning system for use with a refractive laser system includes a camera interface, a computer, and a system for moving the patient relative to the laser beam. The computer includes a video frame grabber which extracts images of the eye from the camera, and is programmed to perform an eye tracking algorithm. The eye tracking algorithm calculates the exact center of the eye pupil, and compares the center with the desired location of the laser beam, as determined by a surgeon, with an image processing algorithm. If the relative location of the eye center and the laser beam fall outside a predetermined value, the patient chair, and thereby the patient, is repositioned relative to the laser beam, as opposed to the laser beam being repositioned relative to the patient. The repositioning counters the movement of the eye.

Inventors:
Freeman, Jere M
Freeman, James F
Roy Yee, Williams
Application Number:
JP2001514867A
Publication Date:
February 18, 2003
Filing Date:
August 10, 2000
Export Citation:
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Assignee:
Memphis I and Cataract Associates Ambulatory Surgery Center (D.B.A.Mecha Laser and Surgery Center)
International Classes:
A61B3/113; A61F9/007; A61F9/01; A61G13/00; A61G13/02; A61G15/00; A61G15/02; A61F9/008; (IPC1-7): A61F9/007; A61B3/113; A61G13/00; A61G13/02; A61G15/00; A61G15/02
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)