Tomey UD-600, Operator'S Manual

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3-117
3.7.2 Calculation
„ „ „ „ „
When using the measurement results of axial length mea-
surement for IOL power calculation, the physician shall
always check the measurement results before calcula-
tion.
„ „
„ „ „ The UD-6000 may have some extent of calculation error
due to the effective digits of internal calculation.
„ „
„ „ „ There may appear an imaginary number in the formula
SRK/T. In this case the calculation will be done with the
imaginary part as 0 and "*" will be put on the right of the
calculated value.
This instrument automatically performs calculation when all necessary con-
ditions necessary for IOL calculation, which are referred to "3.7.3 Setting
of calculation formulas" and "3.7.4 Inputting of calculation data", have been
inputted and calculation results will be displayed.
3.7.3 Setting of calculation conditions
a) Setting of the eye type
See "3.6.3 a) Setting of the type of eye to be measured".
b) Setting of the calculation formula
Select the IOL power calculation formula from the following
seven formulas.
„ SRK II
„ SRK/T
„ HOLLADAY
„ Hoffer Q
„ HAIGIS optimized
„ HAIGIS standard (*)
„
SRK Showa (SHOWA)
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4GH
+&0Q 5GZ/CNG 5GR
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2QYGT
.KUV
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+1.
#$%
C
C
C C
C
C
&
+1.
#$%
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3.7 IOL power calculation