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[Measurement of axial length with immersion mode]
Measurement without using immersion attachment (cap)
Top of the biometry probe can be immersed in the water.
In case of using corneal protective gel, care must be
taken not to put excessive amount of the agent, which
may otherwise influence measurement data.
Measurement with immersion attachment
Care must be taken not to let air bubbles in the cup pro-
vided at the tip of the Immersion Attachment, when plac-
ing the ultrasound gel.
1) Apply a small amount of the ultrasound gel to the tip of
the Biometry probe. (Fig. 1)
2) Cover the biometry probe with the immersion
attachment.(Fig.2)
3) Put the ultrasound gel in the cup provided at the top of
the immersion attachment.(Fig3)
4) Apply the immersion attachment to the probe so that its
tip is aligned to the probe axis and the visual axis, but it
is positioned in such a place where the tip of the
immersion attachment does not touch the cornea. (Fig 4)
Hand, Chin Measurement mode
1) Select the key, (1) key or (2) key, depending on the
measurement method.
2) The selected key is displayed as reverse highlighted.
The converted velocity directly affects the measurement.
Ascertain that you have set the desired converted velocity.
In immersion mode, the ultrasound gel must intervene
between the eye contact area of the biometer probe and
the cornea so that distance between the probe and the
cornea is approximately 1.8 to 3.2 mm.
Excessive ultrasound gel may affect the accuracy of the
measurement.
Auto measurement (Hand mode) assists the examiner to
take measurement, and the function itself does not diag-
nose the data.
Measurement accuracy might be over 0.1mm, due to the
measurement condition or the difference among patients.
(Figure 1)
(Figure 2)
(Figure 3)
(Figure 4)
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