Use
➢ Hide one patient’s eye.
➢ Ask the patient the orientation of the top of the waves.
➢ Enter the patient’s answer:
▪ Good answer: click on "Yes" button.
▪ Wrong answer or orientation not seen: click on 'No' button.
➢ Continue until the end of the test (20 steps)
At the end of the test, the graphic of answer is displayed
➢ Click on ‘Yes’ button to restart the test(for the same or for the other eye).
Result of the test
At the end of the test, the graph of the result is displayed.
Vertical axis : contrast (C=contrast S=Contrast sensibility=1/C)
Horizontal axis: spatial frequency CpD= Cycle per Degree)
Table under the horizontal axis: Log10(S) answers values
Red curve: superior curve of the normal answers
Blue curve : inferior curve of the normal answers
Green curve : curve of the answers
Saving the result
Insert a USB key in the VX22
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