Tomey OA-2000 - Ultrasound Axial Length Measurement Mode; Setting Measurement Conditions

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3.4 Ultrasound axial length measurement mode
Refer to “3.2.4 Switching between optical (OPT) mode and ultrasound (US)
mode” for the method to switch to ultrasound measurement mode.
3.4.1 Setting measurement conditions
■ Settings made here are only effective for the eye currently selected.
Settings cannot be made for both eyes simultaneously. Complete
necessary settings for each eye.
Touch the "Setup" button (1) to display the Setup (Ultrasound Axial) screen (Fig.
2). Set items related to operation conditions.
Touch the “Exit” button (2) after setting is completed to apply selected contents
and return to the measurement screen (Fig. 1).
(Fig. 1) (Fig. 2)
a) Selecting inspection eye
Select the inspection eye from the following 7 options.
● Phakic eye
Select this for a normal eye or when the crystalline lens nucleus is
comparatively soft, such as an eye in the initial stages of cataracts.
● Dense cataract eye
Select this when the crystalline lens nucleus of the inspection eye is
comparatively hard, such as an eye with dense cataracts, and it is difficult
to take measurements in the mode used for a phakic eye with an echo
reflected in the crystal lens.
● Aphakic eye
Select this in the case of aphakic eyes.
● IOL eye (PMMA)
Select this when a PMMA IOL is implanted.
● IOL eye (silicon)
Select this when a silicon IOL is implanted.
● IOL eye (acryl)
Select this when an acrylic IOL is implanted.
a)
b)
c)
(1)
(2)