Patent ID: 7656569
Filing Date: 2010-02-02
Classification: A61B,G02B,G02C

Abstract:
1. A system for modifying the vision of a subject comprising: a first optical subsystem having a first spherical focal length, a first cylindrical focal power, and a first axis of cylindrical lens orientation; a second optical subsystem having a second spherical focal length, a second cylindrical focal power, and a second axis of cylindrical lens orientation; a switching mechanism configured to selectively direct a visual input to an eye of the subject through one of said first optical subsystem and said second optical subsystem; an image detector adapted to detect an image reflected from said eye; an image analyzer for determining the quality of said reflected image; and a controller for controlling at least one of said first optical subsystem, said second optical subsystem, or said switching mechanism responsive to the quality of said reflected image.