11 Mea
s
urement Procedure
Instruction Manual Easyfield® (GA/15000/XXXX/EN 1219 Rev01)
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11.1.6
Po
s
itioning of the pupil
Ask the patient to fixate on the middle of the four red points.
The pupil is correctly positioned when it is displayed in the red
square.
☞
Note
If necessary, adjust the camera image settings in the Easyfield® program
settings so that the movements of the eye are displayed in the
convenient way (mirrored or not mirrored).
11.1.7
Mea
s
uring the Pupil
To conclude the examination preparations, the pupil diameter must now
be measured. To do this:
Move the mouse pointer to the left edge of the pupil on the monitoring
image.
Press and hold down the left mouse button. The left edge of the pupil is
marked with a green line.
Move the mouse pointer to the right edge of the pupil and stop pressing
the mouse button there.
The right edge of the pupil is also marked with a green line and the
measured pupil diameter is displayed in the "Pupil" field.
11.2 Starting the examination
Now instruct the patient to press the hand-held button every time a
light spot is seen flashing.
Explain to the patient the examination can be interrupted at any time
by pressing and holding down the hand-held button. The examination is
automatically resumed when the patient lets go of the hand-held
button.
Click on the button [Start Exam.].
Fig. 11-7: Button [Start Exam.]
