G-30-1529-en OPMI® VISU 160 on S8, S81 & S88 Suspension Systems Issue 5.0
Printed on 09. 10. 2006
Safety 27
When using a wide-angle observation system (e.g. BIOM 3)
When using a wide-angle observation system (e.g. BIOM 3 from Oculus)
which is usually installed between the surgical microscope and the pa-
tient, make sure that the patient is neither put at risk nor injured by the mo-
torized focusing system or the movement of the suspension system arm.
Only use accessories expressly certified by the manufacturer for combi-
nation with the surgical microscopes described in this manual.
Warning!
• With the wide-angle observation system swung out of position, always
position the microscope body in such a way that index dot (1) of the
microscope's focus is in the middle of triangle (2) of the marking.
• Select a medium magnification (e.g. 1.0).
• Lower the surgical microscope toward the surgical field until you see
the patient's cornea sharply defined.
• Turn the locking lever for limiting the downward movement clockwise
as far as it will go and check without the patient that the suspension
arm cannot be lowered any further.
• It is vital that you read the user manual for the wide-angle observation
system used (e.g. BIOM 3 from Oculus).
Phototoxic retinal injury in eye surgery
General
Several papers
1)-5)
dealing with the problem of phototoxicity in ophthalmic
surgery have been published. A comprehensive review of these publica-
tions reveals five aspects of particular concern:
– Illumination characteristics (spectral composition)
– Illumination intensity
– Angle of illumination
– Focus of the light source
– Exposure time to light
1
2
Risk of collision!
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