ALADDIN
- User manual
Rev. 19 EN of 10/07/2019
50
11.6 Biometry: acquisition procedure
There are two acquisition mode:
MODE
BUTTON
DESCRIPTION
FULL BIOMETRY
ACQUISITION
Perform the AL (Axial Length), CCT-ACD-LT sequence (Central
Corneal Thickness, Anterior Chamber Depth and Lens Thickness)
and KER (Keratometry) acquisitions in a full sequence
measurement.
SINGLE
ACQUISITION
Perform KER (Keratometry) acquisition
Perform AL (Axial Length) acquisition
Perform CCT-ACD-LT sequence (Central Corneal Thickness,
Anterior Chamber Depth and Lens Thickness)
WARNING: a valid LT result cannot be obtained without acquiring the patient's AL.
WARNING: a standalone CCT-ACD-LT measurement cannot be performed without a valid AL result
Backlighting of the Placido disk is automatically activated when you enter the acquisition environment. If the
instrument is not used for a few minutes, the cone turns off; to turn it on again, just press the joystick button.
To acquire the image or measurements in general, whatever mode you are in, simply proceed as follows:
1.
Align the live image in the center and focus, then press the joystick button to start the acquisition
(you need to perform this step only the first time you acquire a patient eye).
2.
Move the instrument forwards and backwards (following the indications of the red and blue arrows
on the screen) to find the ideal focus. While you find the ideal focus achieve the central alignment by
centering the two squared aims with vertical or horizontal movements.
3.
When the green indicators are displayed and the two squares are centered (both green), press the
joystick button again and the system will automatically capture the required image and/or
measurements.
4.
Don’t move the joystick in the few seconds during the acquisition.
Focusing and centering guidance system is composed of two aspects:
Centering
Focusing distance
Centering ideal conditions are achieved by centering the two squared aims by means of horizontal and
vertical movements, reaching the condition of following picture:
The two squares assume different colors depending on two aspects: focusing position and centering in
tolerance.
Summary of Contents for ALADDIN HW3.0
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