Figure 38
Follow the instructions of the red and blue arrows until optimum acquisition conditions have been reached
and the software will automatically capture the image for the measurement.
In these conditions, the instrument records the anterior chamber depth.
13.8 Keratometry acquisition (KER)
Keratometry is used to measure the corneal curvature. It is based on the reflection of the Placido disk on the
eye at a controlled working distance for high measurement precision.
Aladdin allows the user to acquire the corneal topography of the eye. The “Corneal Map” is obtained from
the reflection of 24 rings of the Placido disk at a distance of 80 millimeters from the patient's eye. The position
of the device, in relation to the patient’s eye thus found, serves as a starting point for fine adjustments to be
made in the respective measurement mode.
By selecting this mode, the acquisition environment shown in Figure 39 appears.
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