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8. Measurement procedure
8.1 Installation on to the Slit Lamp
Before installing the Tonometer on a Slit Lamp ensure that they
are mutually suitable and that the tonometer is level.
• Mount the plate for the Tonometer onto the microscope body
using the securing screw.
• Mount the Tonometer onto the mounting post ensuring the
grub screws are loose
• Swing the Tonometer arm forward in front of the microscope
for examination. Rotate the Tonometer body until the prism is
in the center of the view through the eyepiece. Carefully
tighten the two retaining grub screws in turn until the
Tonometer is secure on the mount and the prism is in the
center of view.
• To obtain an image as clear and as free of reflexes as
possible, the angle between the illumination and the
microscope should be about 60° and the slit diaphragm
should be fully opened.
• When not in use the tonometer arm should be
swung up against the protection plate.
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Mounting
plate
Continued
