FHIT TEC_FHIT_M Rev.1 11/2016
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PROCESS OF EXAMINATION
– VISUAL ACUITY PART
The examination begins When the software shows the following screen with a white dot in the center where
the Landolt C optotype will appear.
The doctor gives an indication to the patient to look at the white point until the optotype appears. Once the
optotype has appeared the patient will indicate which of the 8 possible orientations, which then appear on the
screen, he has seen. Following correct answers for at least 3 out of 5 letters, the letter size will shrink. The
patient can use the keypad to enter the correct number or tell it to the doctor who may select it via the
keyboard.
The examination for visual acuity ends at the moment in which the patient is unable to identify three out of five
optotypes, or when the patient has given all the correct answers. After the test the acuity screen with all the
patient data is displayed. A green flag indicates the patient's visual acuity, which can be saved by the doctor
for following examinations without repeating the test.
