VISUSCOUT 100-GA-GB-031219
25
STEPS FOR RETINAL IMAGING:
1.
The examination room should be as dark as possible.
2.
Both the patient and the examiner shall be seated while taking the images.
3.
Either autofocus or manual focus can be used. Autofocus range is from -15
to +10 diopters and manual focus range is from -20 to +20 diopters.
If patient has a refractive error and
autofocus is off
, focus needs to be
adjusted:
•
Hyperopia: camera is focused to distance by pressing arrow key up.
One click of the key is approximately 1 diopter.
•
Myopia: camera is focused closer by pressing arrow key down. One
click of the key is approximately 1 diopter.
4.
Aiming light is automatically turned on
when camera enters live view.
5.
The middle fixation target is lit when pressing left soft key
and it provides
a macula centered image. To change the fixation target use navigation key to
navigate between the 9 targets as shown in the graphics in lower left corner
of the display. If fixation target is turned off, ask patient to look at a target in
a wall 2-3 meters behind the operator.
6.
Light is adjusted using left and right arrow key. There are altogether 10
brightness levels. Default value is 5. Suitable illumination is typically 2 for
bright eyes to 8 for very dark eyes.
For small children it is recommended
to set the illumination as low as possible (1-3).
When using IR/White
capture mode changing illumination brightness affects only the white
capturing flash. If using IR/IR or White/White both aiming and capturing
light are changed.
7.
Aim help circle on the screen guides user when to take image.
When retina
is not fully in view the circle is red. Once the aim is good and retina fully
appears on screen, the circle turns green indicating a good moment for
capturing the image.
NOTICE: Some eye diseases and certain eye colors may prevent aim help
from turning green. In this case images can be taken normally, except AF
assist mode cannot be used.
8.
Approaching the eye is started from 10 centimeters (4 inch) distance. If
internal fixation target is not used patient is asked to look at a target in a wall
2-3 meters behind the operator (patient’s eye targets to infinity and stays
still).
Pupil is approached until the reflection from the eye fundus can be seen.
Summary of Contents for VISUSCOUT 100
Page 1: ...VISUSCOUT 100 Mobile Retinal Camera User Manual...
Page 2: ...VISUSCOUT 100 GA GB 031219...
Page 57: ...VISUSCOUT 100 GA GB 031219 55...
Page 59: ......
