DUAL SCHEIMPFLUG SYSTEM FOR THREE-DIMENSIONAL ANALYSIS OF AN EYE

• US 20100165293A1
• Filed: 03/09/2010
• Published: 07/01/2010
• Est. Priority Date: 12/21/2007
• Status: Abandoned Application

• Current Assignee: Sifi Diagnostic S.P.A.
• Original Assignee: Sifi Diagnostic S.P.A.
• Inventors: MOGENTALE, Irene, TANASSI, Cesare, ZANETTE, Walter, MENEGHINI, Gianluigi
• Application Number:
  US12/720,588
• Publication Number:
  US 20100165293A1
• Time in Patent Office: Days
• US Class Current: 351/208
• CPC Class Codes: A61B 3/1005 for measuring distances inside the eye, e.g. thickness of the cornea A61B3/11 takes precedence
• CPC Class Codes: A61B 3/107 for determining the shape or measuring the curvature of the cornea
• CPC Class Codes: A61B 3/117 for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes

Abstract

An apparatus for imaging an eye can include a pair of Scheimpflug imaging systems. Each Scheimpflug imaging system can have respective video cameras and optics configured to direct light reflected from an eye into the video cameras. The apparatus can also have a movable platform configured to move the pair of Scheimpflug imaging systems in accordance with eye movement detected by an eye tracking imaging system. In some embodiments, the Scheimpflug imaging systems can rotate 90 degrees about an optical axis of an eye being examined.

Claims

1. An apparatus for imaging an eye, comprising:

a first Scheimpflug imaging system having a first video camera and first optics configured to direct a first group of light reflected from an eye being examined into the video camera;

a second Scheimpflug imaging system having a second video camera and second optics configured to direct a second group of light reflected from an eye being examined into the second video camera, the second Scheimpflug imaging system and the first Scheimpflug imaging system are positioned perpendicular to one another;

a movable platform having at least a portion of the first Scheimpflug imaging system and least a portion of the second Scheimpflug imaging system fixedly connected to the platform so that the respective portions of the first and second Scheimpflug imaging systems move in accordance with any movement of the platform; and

an eye movement tracking system comprising a third video camera and a third optics configured to direct a third group of light reflected from the eye into the third video camera, wherein the eye movement tracking system is capable of detecting movement of an eye away from an alignment position and wherein the movable platform is capable of moving to compensate for the detected eye movement so as to keep the eye in the alignment position.

2-19. -19. (canceled)