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ALADDIN
- User manual
Rev. 19 EN of 10/07/2019
49
Error cause
Identification
Closed eyelid
Missing ring reflection on the eye Placido Image, on the upper
hemisphere of the cornea
Movement
Interlace pattern shown in acquired image
BrokenTear film
Missing ring reflection on the eye on Placido Image
Bad focus
Defocus of ring reflection on acquired image
High standard deviation on repetition
Big difference between repeated acquisitions
Measurement not in range
Output out of instrument range of measurement
If a warning sign is shown above a measurement, it is recommended to make further acquisitions until
reliable data is obtained.
It is very important that the main types of measurement (KER-AL-ACD) taken are shown without a
warning sign, otherwise it will not be possible to proceed to IOL Calculation with the current data
(valid ACD is needed only if using Haigis formula).
Valid LT and CCT aren’t needed to access IOL calculation as they are not used in any of the available formulas.
As shown in Figure 28, accessing IOL Calculation, an error window will be shown warning the user to reacquire
the measurements or to manually enter a new set of data.
If the user proceeds with manual input (Figure 29), the software will pre-populate all the fields with acquired
data, even those with error or warning signs. It is also possible to enter arbitrary data, if possible taken with
other instruments.
Figure 29
Summary of Contents for ALADDIN HW3.0
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