If there is a suspicion that liquid or condensation has penetrated the handle, it must not be
charged under any circumstances. This may cause a life-threatening electric shock, espe-
cially with plug-in handles.
Do not disassemble or modify the battery. There are no serviceable components inside the
device.
Do not open, short circuit, or dispose of the battery in a fire.
Only use original parts and spare parts approved by Riester, otherwise device safety and
performance may be impaired.
Because prolonged intense exposure to light can damage the retina, the use of the eye exam
device should not be unnecessarily prolonged, and the brightness setting should not be set
higher than needed for a clear representation of the target structures.
The irradiation dose of the photochemical exposure to the retina is the product of irradiance
and duration of irradiation. If the irradiance is reduced by half, the irradiation time can be
twice as long to reach the maximum limit.
Although no acute optical radiation hazards have been identified for direct or indirect opht-
halmoscopes, it is recommended that the intensity of light directed into the patient's eye be
reduced to the minimum required for examination/diagnosis. Infants / children, aphasics
and people with eye diseases are at higher risk. The risk may be increased if the patient
has already been examined with this or another ophthalmological instrument during the
last 24 hours. This is especially true when the eye has been exposed to retinal photography.
The light of this instrument may be harmful. The risk of eye damage increases with the
duration of irradiation. An irradiation period with this instrument at maximum intensity of
longer than >5 min. exceeds the guideline value for hazards.
This instrument does not pose a photobiological hazard according to DIN EN 62471.
The information in the instructions for use on cleaning and disinfection must be observed.
• If you do not use the device for a long time or take it with you while travelling, please
remove the batteries from the battery compartment.
• New batteries should be inserted when the light intensity of the instrument becomes
weaker and could impair the examination.
For optimal light output, we recommend that you always use new high-quality batteries
when changing the battery.
Follow the instructions for cleaning and regular maintenance to avoid personal injury, or
damage to the device.
Switch off the device and disconnect it from the power supply before starting cleaning or
inspection.
Do not autoclave or immerse in cleaning fluids.
Make sure that excess solution does not get into the instrument. Take special care that the
cloth is not saturated with solution.
Please note that the temperature can exceed 41 °C (105,8°F) during intended use!
Defective bulbs must be replaced immediately.
The used medical device must be disposed of in accordance with current medical practices
or local regulations on the disposal of infectious biological medical waste.
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