2
Warnings and Cautions
CAUTION: To minimize lamp housing temperatures, on-
time should not exceed 2 minutes with off-time not less than
10 minutes.
CAUTION: No acute optical radiation hazards are identified
for ophthalmoscopes. However, Welch Allyn recommends
limiting the intensity of the light directed into the patient’s
eye to the minimum level that is necessary for diagnosis.
Infants, aphakes, and persons with diseased eyes are at a
greater risk. The risk is also increased if the examined per-
son has had any exposure with the same instrument or any
other ophthalmic instrument using a visible light source
within the previous 24 hours. This will apply particularly if
the eye has had exposure to retinal photography. The
intended use of this device is for routine ophthalmic exams
on the order of typically less than 60 seconds per eye.
Although there is a benefit versus risk factor in any medical
procedure, these more complicated exams should not
exceed a three minute exam time in 24 hours. Significant
use of this device beyond its intended use is not recom-
mended; it may cause harm to the eyes.
Use only PanOptic Patient Eyecups (part number 118092)
with this product.
CAUTION: Federal Law restricts this device to sale by or
order of a physician.
CAUTION: Spectrally weighted photochemical radiance LB
and LA give a measure of the potential hazard that exists for
a beam of light to cause photochemical damage to the retina.
LB gives the measure for eyes in which a crystalline lens is
not in place. LA gives this measure either for eyes in which
the crystalline lens has been removed (aphakes) and has not
been replaced by a UV-blocking lens or for the eyes of very
young children.
The value stated for this ophthalmoscope gives a measure of
hazard potential when the instrument is operated at maxi-
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