3-11
3.3.2 Corneal curvature (keratometer) measurement mode
<Keratometer Measurement Screen>
The latest measurement value is displayed in $.
The number of dot in % indicate saved measurement data
number, and & indicate measuring number with latest mea-
surement.
The colors of measurement data $ and dots %, & which
indicate reliability of measurement.
Reliability of color display indicates as "Yellow" for lack of mea-
surement point caused with eyelid or eyelash.
When reliability of measurement data is too low, red color is
indicated on $.
When measurement fails, [E] mark is displayed on $ in red
and data is not shown.
The keratometer measurement memories three times of mea-
surement data. If more than three times measurement data are
taken, it will be deleted from the oldest one. If, however, dates
colored with "Red" and "Yellow" are indicated, this data will be
deleted first.
Displays Keratometer measurement data of cornea center part,
when "Ø3" mark is attached to the right upper part of the mea-
surement value.
Displays Keratometer measurement data of the circumfer-
ence part of cornea when "Ø6" mark is attached.
Displays "Ø3" measurement value when measured both Ø3/
Ø6. Measurement value of "Ø6" can be seen by Data mode.
(See "3.5 Display of data in the memory".)
<Measuring procedure>
1) Select the "KRT" measuring mode. (See "3.2.2 Select-
ing of the measuring mode and setting of the measur-
ing conditions".)
2) Give alignment. (See "3.2.4 Alignment procedure".) Next
press the Measurement switch '. If Auto Shot is set at
"ON", measurement will automatically be started when
alignment is finished. Measurement will consecutively be
given as many times as set (1 or 3 times). After measure-
ments are finished, Auto Shot will be released regardless
of acquirement of measurement data.
3) At the time when set times of measurement data have been
taken, the message of "Finished" will be displayed in the
screen.
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(Fig. 1)
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(Fig. 2)
3.3 MEASUREMENT
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