Essilor Instruments AKR 800, User Manual, Page: 32 / 81

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9. Optional function measurement method
a. P.K
Switch to the P.K. measurement mode screen.
Perform the measurement.
The usual measurement is taken in order of H→V→S→T→I→N.
H (Horizontal): Horizontal measurement
V (Vertical): Vertical measurement
S (Superior): Superior measurement
T (Temporal): Ear side measurement
I (Inferior): Inferior measurement
N (Nasal): Nose side measurement.
When the measurement method is Auto (
).
Once alignment is performed and measurement is started, all directions are automatically measured.
When the measurement method is Manual (
).
Center (H/V) measurement is performed after alignment.
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AKR800 - Auto Kerato Refractometer > V4 - 05-2022 - CE0459 32