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Browsing mode: recall of a possible patient.
When pressing the left arrow button the patient's data is shown overlaying the image for a
couple of seconds. The following data are displayed: patient number, patient name, date of
birth, age selection, folder name, exam date and software version used to acquire and save
the exam.
10.7 Preparation of the patient
During the exam the patient must look at the device, staring to the central front hole of the
device.
The operator shall instruct the patient to look at the device and to try to open wide his eyes
so to avoid eyelashes covering the pupils.
In case the patient is not collaborative, the operator should use interactivity features to
attract the attention of the patient itself, by activating either visible flickering lights, or sound,
or both. We recommend activating first the sounds and the light only in extreme case when
the sounds are not enough.
In case of infants, the patient may be held on the parent's legs during the examinations.
Also, it is a good practice to ask the patient to try to keep the head horizontal, although the
device will evaluate and automatically compensate for inclination, when measuring the axis
of the refraction.
In case of monocular measurement, ask the patient to cover his other eye with a hand.
10.8 Measurement
The instrument, since the beginning of the examination, uses a top bar in the display that
gives feedback on the conditions for measurement: in particular, this bar becomes red or
green. When the bar is red, there are no conditions to acquire the images correctly, on the
contrary, when the bar is green, correct conditions for measuring are satisfied and images
can be acquired and processed correctly.
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