Zeiss opmi lumera 700, Instructions For Use Manual, Page: 81 / 236

Instructions for Use 3 Description of the device
OPMI LUMERA 700 3.5 Functional description
G-30-1673-en - 14.0 - 2018-07-12 81 / 236
3.5.2 SCI illumination
SCI illumination (Stereo Coaxial Illumination) is used for illuminating
the surgical field and generating a red reflex.
SCI illumination features three preconfigured types of illumination,
the mix ratio of which can be retrospectively adjusted.
Function Effect
Red reflex
illumination Light emitted by the surgical microscope is limited to
a diameter of approximately 20mm and generates a
red reflex which optimally visualizes the structure of
the patient's eye.
• Red reflex illumination 100%
• Surrounding field illumination 0%
Mixed light: red
reflex with
surrounding
field illumi-
nation The light emitted by the surgical microscope
generates a red reflex and simultaneously illuminates
the surrounding area of the patient’s eye.
• Red reflex illumination 100%
• Surrounding field illumination 50%
By changing the ratio between red reflex and
surrounding field illumination, you can influence the
depth perception and detail recognition according to
your surgical needs. If you would like to work with
one standard setting only for the entire cataract
surgery, we recommend full (100%) red reflex illumi-
nation and about 30-50% surrounding field illumi-
nation. These values can be adjusted in the start
values in each user profile and saved; this allows
them to be activated for each surgery when the
system is moved out of the park position.
Surrounding
field illumi-
nation Light emitted from the surgical microscope illumi-
nates the entire field of view. The red reflex illumi-
nation is deactivated.
• Red reflex illumination 0%
• Surrounding field illumination 100%
3.5.3 Main and auxiliary light source
The main light source (OPMI light) provides light to the SCI illumi-
nation system and is only used for operations on the anterior
segment of the eye. When working on the posterior segment of
the eye with Endo illumination, the main light source can be
switched off and the auxiliary light source (2nd light source)
switched on. The following functions can be adjusted for both light
sources: