
Chapter 3 - How to...
Problem
Possible cause
Solution
Patient position
feedback not
showing on some
eyes.
Ambient lighting too bright;
irregular pupil shape;
unmanaged ptosis.
Ensure the patient’s pupil is centered on the cross
hairs on the touch screen.
Cannot align the
patient with the
hand control.
Equipment failure; device set
up incorrect.
Ensure the patient’s pupil is centered on the cross
hairs on the touch screen. Contact Optos for
assistance.
Imaging when the
patient position
feedback is green
does not produce
good results.
System virtual point is offset
leading to incorrect feedback.
Compensate by imaging with the alignment target on
red or blue, as appropriate.
Images taken
include large lid and
lash obscuration.
Poor patient position;
unmanaged ptosis.
Review the positioning guidance in this document,
see
on page 34. Contact Optos for
additional training if required.
opto
map images
show horizontal line
artefacts.
System slit mirror requires
cleaning.
Contact Optos to arrange for a Field Service
Engineer to clean the slit mirror.
opto
map images
show small random
artefacts in fixed
position.
Dust on the main mirror, or
main mirror dirty.
Use the recommended cleaning materials and
procedure for cleaning the main mirror, see
If the issue persists contact your Optos
representative.
I see a bright reflex
above the optic
nerve head.
Patient is too close.
Image with the patient further out.
OCT images show
horizontal line
artefacts.
Excessive time spent in the
OCT imaging mode, > 5
minutes for 1 OCT capture.
Exit and re-enter the OCT capture mode to ensure
dark frame processing is re-applied.
Scan head not
starting up. Screen
and power LEDs are
on.
Uncontrolled shut down
leading to disk checks at
start-up.
Allow 15 minutes for the device to complete start up.
Be sure to shut down correctly at the end of each
day, see
Use standby mode at the end of each day
Cannot image due
to image server
error.
Image server disk is full.
Storage provisions on the image server need to be
extended. Contact Optos for assistance.
Cannot locate
images just taken of
patient.
Images taken under wrong
patient.
Confirm the patient's name and check against the
patient name displayed for the recently captured
images. If they do not match contact Optos for help
moving them.
Images are not
appearing in review.
Server or communications
error.
Shut down the scan head and image server. Restart
the image server first followed by the scan head, see
How do I restart the image server?
on page 58 and
How do I restart the scan head?
Page 56 of 72
Part Number: G110230/1ENG
English
Copyright 2019, Optos plc. All rights reserved.
Содержание P200T E Series
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