OPTIKON KERATRON ONDA, Инструкция по установке и эксплуатации

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Keratron
™
Onda Installation and operating manual
OPTIKON 2000
Cod. 161401EN 7-34
2015-03-27
Rev.C
A label in the lower right and the chart on the left of the display show in real time
the "Stimulus" or "Fogging" being presented, followed by the accommodation
response measured for the patient. In ideal conditions, the curve of responses on
the chart (in red) should follow the green diagonal until the patient is able to
accommodate. Figure 7-55 shows the acquisition phase of the test for a long-
sighted patient.
Figure 7-56: Acquisition of an accommodation test.
After the acquisition is complete, a "Preview" of the aberrometric measurement
displays (Figure 7-57). These measurements are based on the central pupil area
that measures 1.74 mm only.
In this screen, it is possible to view the complete chart of the pupil's trend, from the
approximate Defocus and Astigmatism, and confirm the absence of artefacts,
using the image acquired by the sensor and the gradients at least in this central
area. It is possible to decide whether to repeat the test by pressing [Cancel] or
continue by pressing [Process].
Figure 7-57: Accommodation preview.
If you press [Process], the aberrometric measurements are reprocessed using a
pupil area with a diameter of 3.49 mm, provided that the actual pupil of the patient
is not smaller than 3.49 mm (Figure 7-58).