Addendum 3 Cleaning and disinfection of reusable measuring prisms
Instructions for use and disinfection of
tonometer measuring prisms
3.3 Rinsing and storage
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3.3 Rinsing and storage
CAUTION!
Risk due to contaminated or damaged measuring prisms
The patient may be injured by contaminated or damaged
measuring prisms.
u Never use damaged measuring prisms!
u Only use clean, residue-free and undamaged measuring prisms.
u 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).
Action 1. Place the clean and disinfected funnel on the plastic insert.
2. Rinse the measuring beaker and its contents with drinking-
water quality running water for at least 10 and at most 15
minutes (i).
3. Remove the plastic insert with the measuring prisms (j) and dry
the measuring prisms individually with a clean and sterile, soft,
disposable cloth (k).
4. Store the cleaned and disinfected measuring prisms in the
sealed and disinfected Desinset glass container (l) until their
next use.
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