PRK-7000 Operation Manual
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5.2 Refractometry [REF Mode]
Only refractometry can be performed in the REF mode.
(1) Enter REF Mode
Press MODE button until “REF” is displayed on the right side of the display.
(2) Follow the same procedure (2) of the Continuous Keratometry and Refractometry [K/R
Mode].
(3) Perform alignment and Focusing
Align the pupil and alignment marks, and focus on the mire image by using the
operation lever.
(4) Measurement
Press the measuring button .
Measurement will be continuously performed when the measuring button is kept
pressed.
z If you change setting at PAGE1 of SETUP Mode, you can select the vertex distance.
z If you change setting at PAGE1 of SETUP Mode, you can change display format of
CYL value.
NOTES:
① There can be error if the Outer Alignment Mark and the pupil is eccentric.
② There may be some aberration to the measurement value due to the
eccentricity or inclination of lens, or deformation of cornea after surgery.
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