G-30-1439-en
OPMI® VISU 200 BrightFlex™ Surgical Microscope
Issue 3.0
Printed on 21. 11. 2002
Safety
17
use of fluids in the eye, manipulation and movement of the eye, among
other factors, result in the interruption of the illumination from the surgical
microscope light source. Such factors would be expected to significantly
extend the time at which photoretinitis might occur.
In conclusion
Carl Zeiss recommends:
–
Use of the GG 475 eye protection filter.
–
Reduction of the illumination of the surgical area to the extent required
for the patient's safety and for microscopic visualization.
–
Tilting of the microscope body as required.
–
Insertion of the retinal protection device.
–
Maximum reduction of the exposure of the patient's eye to light from
surrounding light sources.
These measures should help the surgeon to reduce the likelihood of pho-
totoxic retinal injury.
Note:
The VISU 150 microscope always contains a UV blocking filter.
The use of this filter ensures that the illumination intensity lies below 50
µW/cm
2
in the range between 305 nm and 400 nm.
These measures help the surgeon to reduce the risk of phototoxic retinal
injury.
