The answer
To clean the NIDEK TONOREF II air nozzle, display the NT measuring screen, inspect the glass from an oblique angle, blow off loose dust, and gently wipe the glass with a cotton swab dampened with methanol or absolute alcohol. Recheck the glass afterward and avoid rubbing settled particles into it.
Filed under Maintenance
- Display the NT measuring screen.
- Inspect the glass part of the air nozzle from an oblique direction.
- Use a blower to remove dust or foreign particles that are settled on the glass.
- Gently wipe the glass with a cotton swab dampened with methanol or absolute alcohol.
- Inspect the glass part again for remaining soiling.
The air nozzle affects the reliability of tonometry values, so this procedure is the manual’s specific response to startup pressure errors such as PRESSURE PEAK ERROR. After use on a patient with an infection, the manual specifies rubbing alcohol on the cotton swab. Do not rub the nozzle while dust or foreign matter remains on it, and do not allow particles to enter the nozzle; the glass can be scratched.
