Tomey UD-600, Operator'S Manual, Page: 128 / 262

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3.6.6 Measurement
a) How to handle the biometry probe in the contact mode and the immersion mode
<Contact mode>
Apply the eye contacting part of the biometry probe directly
to the center of the cornea at a right angle.
<Immersion mode>
The biometry probe can also be applied with the cornea
protective media, such as water, methylcellulose gel, etc.
„ „
„ „
„ In case of not using the immersion attachment
Position the biometry probe at a right angle to the center of
the cornea by applying the cornea protective media between
the eye contacting part of the probe and the cornea so that
the distance between the eye contacting part of the probe
and the cornea is 2.2 to 5.0mm.
„ „ „ „ „ In case of using the immersion attachment
„ „ „ „ „ Care must be taken not to let an air void in the cornea
protective media, when using it in the end cup of the im-
mersion attachment, which may cause measurement un-
able or result in incorrect measurement.
1) Apply a small amount of the cornea protective media to the
eye contacting part
A
of the biometry probe and next at-
tach the immersion cup onto the face of the probe. (Fig. 1)
2) Put the protective media
B
into the end cup of the immer-
sion attachment in such an amount as it looks swelling.
(Fig. 2)
3) Place the immersion attachment so that its head aligns to
the probe axis and its optic axis and comes to the center of
the cornea in such a position that the head does not touch
the cornea. (Fig. 3)
Approximately 2.2 - 5.0mm
A
(Fig. 1)
(Fig. 2)
(Fig. 3)
B
3.6 Biometry