G-30-1529-en
OPMI® VISU 160 on S8, S81 & S88 Suspension Systems
Issue 5.0
Printed on 09. 10. 2006
Preparations
147
Adjusting the surgical microscope
Bring the surgical microscope into its starting position within the focusing range. Adjust the minimum magnification on the surgical
microscope. Bring the surgical microscope into the position required. Adjust your interpupillary distance on the binocular tube. Adjust
your prescription on the eyepieces. Please note that instrument myopia may occur.
Emmetropes
adjust the diopter scale to 0 diopter
(D).
Eyeglass wearers
(who perform surgery wearing their
eyeglasses) adjust the diopter scale
to 0 diopter (D).
Ametropes
(who know their prescription and
perform surgery without wearing
their glasses) adjust the diopter sca-
le to their prescription.
Ametropes
(who do not know their prescription and perform surgery without wea-
ring their glasses)
Adjust both eyepieces on the main microscope to +8 D.
Adjust both eyepieces on the assistant's microscope to +8 D (if applicable).
Eyepieces without reticle:
Eyepieces with reticle:
Remove the binocular tube and the
eyepieces from the microscope
body and point them at a distant ob-
ject
*)
, i.e. use them like a pair of bi-
noculars. The image of the object is
still unsharp.
Turn the diopter scale on the eyepiece
slowly clockwise until the reticle is
imaged sharply.
Turn the diopter scale of one eye-
piece slowly clockwise until the ob-
ject is imaged sharply. If necessary,
repeat this procedure three times
and take the average of the rea-
dings. Adjust the second eyepiece
in the same manner.
Focus the surgical microscope on the
object. The reticle and the object must
be in focus at the same time.
Mount the tube and eyepieces on
the microscope body and tighten
the securing screw firmly.
Adjust the second eyepiece in the same
manner until the object is seen sharply.
Adjust the eyecups in such a way that you can see the full field of view. Adjust maximum magnification on the surgical microscope
and focus on the object. Adjust the working magnification required. When the magnification is changed, the focal plane is retained,
but the depth of field changes.
Note: If several surgeons use the instrument, it is advisable to draw up a table with
the individual prescriptions and to keep it in a handy location near the instrument.
*) CAUTION:
Never use the sun as the distant object!
