CenterVue
DRS Operating Manual
Pg. 12 of 59
The DRS needs to be stored under the following environmental conditions:
Temperature: -10 - 60 C° (14 - 140 F°) / Humidity (max): 90% not condensing
A not optimal pupil alignment may cause the acquisition of an image of the retina
that has a growing light crescent on a board. Such growing light should be
considered an artifact and not a feature of the retina under examination.
Do not leave the front lens uncovered while the system is not in use.
The DRS display is a
touch screen panel
: wherever this manual says “click on ...” it
means “point the finger on the display on ...”
Automatic alignment of the pupil:
Automatic alignment of the pupil is a sophisticated computer algorithm procedure. The
algorithm may fail in some circumstances such as:
long eyelashes;
make-up;
room too bright or presence of breaches of light on patient face;
very big pupil.
Under these conditions the alignment may fail and the device could rest on the patient
face.
No safety issue is compromised, but the exam should be repeated under better
conditions.
8. NOTES TO OPERATOR
No specific skills are required to operate the DRS.
A minimal, device specific, training is required to become able to use the system.
The operator needs to be acquainted with the following concepts:
pupil: the central part of the external surface of the eye, through which light goes in;
retina: the internal surface of the eye ball;
fixation / fixating: the ability of a subject to stare at a specific point in space and specifically
the DRS internal fixation targets.
