Zeiss AT 030, Product Documentation Set

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Instruction for use 5 Daily startup
AT 030 5.1 Preparation safety
319300-9120-000-GA-GB-240320 23 / 60
5 Daily startup
5.1 Preparation safety
CAUTION!
Risk due to contaminated or damaged measuring prisms
The patient may be injured by contaminated or damaged
measuring prisms.
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Never use damaged measuring prisms!
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Only use clean, residue-free and undamaged measuring prisms.
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Prior to every use, the contact surface of the measuring prism
must be inspected for contaminants and damage (scratches,
cracks or sharp edges). This must be performed with a slit lamp
microscope at a medium magnification (e.g. 12x or 16x).
CAUTION!
Risk of non-compliance with contraindications
The patient may be injured or suffer complications if the contraindi-
cations are ignored.
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The device should not be used if the patient is susceptible to
the anesthetic used for the tonometry.
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Utmost caution is also advised with patients suffering from
corneal epithelium lesions.
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Utmost caution is also advised with patients with keratitis,
infection of the cornea or penetrating eye injuries.
CAUTION!
Risk due to measuring errors
Measurements with a damaged tonometer may be faulty.
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Check the tonometer for visible damage as described in the
chapter Checking the tonometer [
}
44].
Prior to using the device, the user must ensure that it is in a good
condition and fully functioning. Furthermore, the user must follow
the instructions in the user manual.
NOTE! The tonometric measurement should be taken in a
darkened room and the slit lamp operated at normal lamp
intensity. Only under these conditions is it possible to repro-
ducibly observe the weakly shining inner edge of the
fluorescein ring. To ensure that the scale can also be seen in
darkened rooms, it is set against a green fluorescent
background.
NOTE! The actual measuring process should take no longer
than 30 seconds, otherwise the pressure will be reduced by
flowing processes.