Target device used in eye movement tests

Details Target device used in eye movement tests Target device used in eye movement tests

1990-01-30

1991-03-26

Dzierzynski, Paul M.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351209, 351239, 351211, A61B 314

Patent

active

050023853

ABSTRACT:
A target device used in an eye movement testing device made up of a light group and a refractor. The light group includes a plurality of light sources lined-up side by side behind an window which opens in the front wall of the casing of the testing device, and the refractor is installed to cover the window from the outside of the casing and face the eye to be examined. When the light sources are successively lit on and off, moving virtual images of the light sources are created so that the images which are expanded (to be longer or higher than the light sources) can be seen through the refractor. Thus, the eye movement (nystagmus) induced when the eye follows these types of moving images, is observed.

REFERENCES:
patent: 3469903 (1969-09-01), Grichnik et al.

Affiliated with

Also associated with

Rating

Target device used in eye movement tests does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Target device used in eye movement tests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Target device used in eye movement tests will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-613567