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© HAAG‑STREIT AG, 3098 Koeniz, Switzerland ‑ HS‑Doc. no. 1500.7220449‑04090 – 2021 – 08
6.7 Fixation star
• Turning the diaphragm disc as far as it will go to the left switches
on the fixation star and the symbol "S" appears in the window. In
some examinations of the fundus, this star is projected onto the
ocular fundus and is also visible to the patient, who is asked to
focus on the centre hole of the star. This allows the examiner to
see where the patient's vision is most focused.
• A typical use of the fixation star is during laser treatments close to
the macula. Similarly, it is also possible to identify
microstrabismus with the projection of the fixation star. The
fixation star is usually used with an upstream red removal filter.
6.8 Microscope and eyepiece
87. Front lens
88. Rotary knob displaying the set
magnification
89. 5-level magnification changer (Galilei
system)
90. Knurled ring for bayonet connector
91. Binocular tube with convergent view, pupil
distance can be set from 52 to 78 mm
92. Eyepiece 12.5 × / field of vision ø 16 mm
93. Index (white point)
94. Knurled ring with dioptre scale for setting
the refraction of the examiner (± 7 D)
95. Sliding occluder (for people who wear
glasses)
6.9 Operating the Flash unit FU 01
Capture frequency ‘normal’
Captures 1 to 10 in a 1-second cycle
Captures 11 to 20 in a 2-second cycle
Captures 21 to 30 in a 3-second cycle
NOTE!
A pause of 210 seconds will follow.
Capture frequency ‘high’
Captures 1 to 10 in a 1-second cycle
Captures 11 to 15 in a 2-second cycle
Captures 16 to 20 in a 3-second cycle
Captures 21 to 30 in a 5-second cycle
WARNING!
After turning off the FU 01 flash unit, wait at least 2 minutes before
turning it back on!
NOTE!
A pause of 210 seconds will follow.