Handheld vision tester and calibration thereof
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United States of America Patent
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Nov 22, 2016
Grant Date -
Aug 6, 2015
app pub date -
Apr 17, 2015
filing date -
May 9, 2009
priority date (Note) -
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Abstract
In one aspect, there is provided a handheld vision tester. In this particular embodiment, the handheld vision tester comprises a display, cursor control, and an interface port. The display delivers vision tests to a user. The user interacts with the vision tests by using the display and cursor control. The interface port allows for communication of results of the vision tests from the handheld tester to external devices.
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