Tomey UD-800 Instruction Manual page 114

b) Selecting IOL power formula
Select the IOL formula to be used on the IOL power calculation screen. The selected formulae
will be displayed in the pull-down menu on the IOL power calculation screen. Touch the
"Selection" button to open the IOL Formula Selection screen (Fig. 3).
When Haigis Standard is selected, the a1 and a2 setting fields are displayed. When SRK/T
Double K is selected, the setting field for cornea equivalent refractive index (Keratometric Index
KI) is displayed.
c) Setting IOP formula
Register the intraocular pressure correction formula to be used for the intraocular pressure
correction. The IOP correction formula set here can be selected on the IOL correction screen.
Touch the "Selection" button to open the IOL Formula Selection screen (Fig. 4).
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(5) Warning message
Displays warnings for determination of a0, a1, and a2.
When the "OK" button is touched, the warning message disappears and
the input field appears.
(Fig. 3)
)
(Fig. 4)
)
(1) Intraocular pressure correction formulas
Register the intraocular pressure correction formula to be used for the
intraocular pressure correction.