G-30-1416-en
OPMI® 1FR XY Surgical Microscope on S7 Floor Stand
Issue 4.0
Printed on 14. 11. 2007
Preparations for use
69
Adjusting the surgical microscope
Bring the surgical microscope into starting position within the focusing range. Set the minimum magnification on the surgical micros-
cope. Bring the surgical microscope into working position. Adjust the interpupillary distance on the binocular tube. Set the diopter sca-
les on the eyepieces. Please note that instrument myopia may occur.
Emmetropes
set the diopter scale to 0 diopter (D).
Eyeglass wearers
(who perform surgery wearing their
glasses) set the diopter scale to 0 di-
opter (D).
Ametropes
(who know their refractive powers
and perform surgery without wea-
ring their glasses) set the diopter
scale ring to their refractive powers.
Ametropes
(who do not know their refractive powers and perform surgery without
wearing their glasses):
Set both eyepieces on the main microscope to +8 D.
Set both eyepieces on the assistant’s microscope to +5 D (if applicable).
Eyepieces without reticles:
Eyepieces with reticles:
Remove the binocular tube and
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 ring on the eye-
piece slowly clockwise until the reticle is
imaged sharply. Stop turning the ring.
Turn the diopter scale ring of one
eyepiece slowly clockwise until the
image of the object is sharp. Stop
turning the ring. If necessary, repeat
this procedure three times and take
the average of the readings found.
Adjust the second eyepiece in the
same manner.
Focus the surgical microscope on the
object. The reticle and the object must
be imaged sharply at the same time.
Replace the tube and eyepieces on
the microscope body and firmly
tighten the securing screw.
Adjust the second eyepiece in the same
way until the object is seen sharply.
Adjust the eyecups in such a way that the full field of view can be seen. Set the maximum magnification on the microscope and focus
on the object. Set 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
showing the individual refractive powers of each surgeon and to keep it in a handy
location near the instrument.
*) CAUTION:
Never point the eyepieces at the sun!
