Filter
Top Products
50
6 Troubleshooting
Abnormality in captured images
Images show white shadow spots
at the same places.
Is there dust on the objective
lens?
Clean the objective lens. See
7.3.1.
Is the objective lens contaminated
by tears etc.?
Clean the objective lens. See
7.3.1.
Are the eyelashes of the patient in
front of the eye?
Make sure that the eyelashes do
not come in front of the pupil.
Image’s peripheral area becomes
darkened.
Is the digital camera located too
far from the patient’s eye?
Align the retinal camera correctly.
Image’s peripheral area becomes
whitened.
Is the digital camera located too
close to the patient’s eye?
Align the retinal camera correctly.
Image is locally too dark.
Is the pupil of the patient’s eye
sufciently dilated?
Try small pupil mode. If it is less
than the pupil diameter guideline,
the center of the images becomes
dark.
Images show black shadow spots
at the same places.
It is necessary to clean the inside
of the camera. Contact Kowa or
your Kowa dealer.