Zeiss VISU 200, Инструкция по эксплуатации, Страница: 28 / 80

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Description
G-30-1439-en OPMI® VISU 200 BrightFlex™ Surgical Microscope Issue 3.0
Printed on 21. 11. 2002
Illumination system
6° illumination
You can continuously fade out the 6° illumination. This results in markedly
reduced reflection from the cornea, while providing nevertheless a high-
contrast, informative microscope image.
For cataract surgery, we recommend opening the 6° illumination system
approx. 25%.
2° illumination
You can switch the illumination from +2° to -2°. This ensures good visi-
bility of the red reflex even when the patient's eye is decentered.
1 6° illumination and 2° illumination
2 2° illumination with centered patient's eye
Here, the red reflex is clearly visible in both positions (+2° and -2°).
3 2° illumination with decentered patient's eye
The red reflex is no longer visible at +2°. After switching to -2°, the red
reflex is again clearly visible.
- 2° + 2°
+ 6°