Apparatus and method for finding of scotomas in the eye of a person tested
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United States of America Patent
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Oct 29, 1991
Issued Date -
N/A
app pub date -
Oct 4, 1990
filing date -
Sep 18, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
1. The invention relates to an apparatus and a method for finding blind spots in the eye of a person tested. 2.1. In examinations carried out to date, it was necessary to scan the entire image field of the person tested. 2.2. According to the invention an image with a plurality of image points lying closely side-by-side is offered to the person tested, the variations in the brightness of which image points are presented at a high frequency, and additionally, a fixation mark at a defined place. 2.3. The apparatus and the method can be used in all types of examinations of the field of vision.
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