Essilor Instruments VISION-R 700, Руководство пользователя

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c. Adjusting the forehead rest
The forehead rest adjustment is performed manually thanks to the knob located on the front of the head of
refraction.
Adjustment of the forehead rest affects the Vertex distance. So, it is better to place the refraction head as
close as possible to the patient’s eyes.
Check the Vertex distance
The inspection of the Vertex distance is performed on the touch screen by pressing on .
> Images of the patient’s right eye and the left eye appear at the top of the console screen.
> Adjust the position of the vertical lines to match the corneal apex of each eye using the central button or the
incrementation keys (+/-) on the console keyboard.
The Vertex distance can be modified by adjusting the forehead rest using the knob located on the front of
the refraction head.
To refresh the image, press the touchscreen on the eye and a new picture will be taken.
d. Going from far-vision mode to near-vision mode
Going from far-vision mode to near-vision mode can be performed:
On the console keyboard, by pressing on the key [NV/FV].
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