USER MANUAL (Instruction for Use) SW 6.1
AppendiXes
Version 6.1.6 dated 2020-01-31 EN Page 190 of 201
12 APPENDIXES
12.1 Backup Batteries
Default settings are stored by backup batteries located in Panel PC and embedded PC:
Panel PC: Advantec Bios backup battery type CR 2032, 3V
Panel PC ONYX Bios backup battery type CR 2032, 3V
Panel PC ONYX Zeus Bios backup battery type CR 2032, 3V
EPC up to 1521413: Bios backup battery type CR 2032, 3V
EPC starting from 1521414: Bios backup battery type TL-5242, 3,6V
EPC starting from 1521415 Bios backup battery type CR 2032, 3V with solder tags
WARNING!
Keep the batteries away from children!
Do not swallow, open, recharge or expose to water, fire or high temperature:
may explode, leak or cause damage.
Please consider the disposal instructions of the backup batteries, refer to chapter 10.9 Disposal.
12.2 Nomogram
What is here introduced as a nomogram file is, in reality, a profile definition. Currently, no
classical nomogram is used well. The laser has an aspheric “aberration-free” profile definition,
but no compensation based on the dioptric deviations coming from the experience.
The “nomogram” must consider the latest knowledge on Age Factors, Customized Ablations,
Aberration-free profiles and it logically considers the differences existing between myopia and
hyperopia, and between surface and stromal ablations.
Age Factors
In Age Factors the nomogram considers three implicitly intended contributions:
a) Water content of the cornea
b) Over/Under refraction due to accommodation
c) Target refraction
The water content of the cornea decreases with age, and it is independent from the refraction or
from the type of refraction. The more water the cornea contains the less effective the ablation is.
The ability to accommodatie decreases with Age, and it is independent from the refraction or
from the type of refraction. This means that typically the patients are over minused in the
refractions when they are myopic, and underplused when they are hyperopic. Young patients
often become happier if they are slightly hyperopic as they are able to accommodate greatly.
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