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3.6 IOL power calculation
■ When using biometry results for calculation of the IOL power, the
physician must examine the measurement result beforehand.
■ Calculation by this instrument may cause some errors due to the number
of significant digits in internal calculations.
■ Complex numbers may be generated for the SRK/T formula. In this case,
the “√ section” is calculated as zero and an asterisk “*” is shown on the
right of the calculation result.
■ Refer to "3.8 Export, print, and save” for waveforms printed and exported
from the IOL calculation screen.
■ OKULUX calculates IOL power using keratometer measurement values.
When no keratometer measurement value is available, the OKULIX screen
does not open.
■ The OKULIX screen does not open when the OKULIX USB dongle is not
connected to this instrument.
This instrument automatically starts calculation and displays the result when all
items required for IOL power calculation are set. In addition, this instrument is
designed to execute 8 types of IOL power calculations and OKULIX calculation.
Touch the “IOL” button and select the desired calculation on the selection screen
(Fig. 2). The screen last selected will open automatically for the next operation.
Touch the "IOL Selection” button (2) on each calculation screen to open another
calculation screen.
(Fig. 1)
(Fig. 2)
IOL Calculate Haigis standard formula
Haigis optimized formula
Hoffer
®
Q formula
Holladay 1 formula
SRK/T formula
SRK SHOWA formula
Shammas-PL formula
SRK/T Double K
OKULIX OKULIX
(1)
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