52 Auto Ref/Keratometer HRK-7000/7000A --------------------------------------------------------
at the bottom of measurement mode indication.
Four(4) boxes are to be indicated in up/down, left/right side of Mire ring. Each box
indicates the proceeding state of measurement on part around cornea. If there is
the measured result around part of cornea where the box is located, the inside of
box is to be full with color: In case of no result, the box is to be indicated as an
empty box. The relevant box indicated at the part around cornea which is
measured now is to flicker.
Direction of part around cornea
-
Superior (SUP) : Upside from corneal center
-
Inferior (INF) : Downside from corneal center
-
Temple (TEM) : To the temple of examinee from corneal center
-
Nasal (NAS) : To the nose of examinee from corneal center
⑤
Sequence to measure the part around cornea
Measure it following the sequence of TEM -> SUP -> NAS -> INF
In case that the measurement in the direction of part around cornea becomes
difficult, the direction lamp (guidance LED light) is to radiate in order to draw the
examinee’s sight around Mire ring actually. After the examiner shall ask the
examinee to look at the light of direction lamp, then he or she can perform the
measurement by adjusting the focus of Mire ring.
In case of part around cornea (SUP, INF, TEM, NAS),
-
R1 : Radius of curvature on maximum meridian in periphery
-
R2 : Radius of curvature on minimum meridian in periphery
-
AX : Axis on the radius of curvature on maximum meridian in periphery
-
RM : Average curvature in periphery
-
EQ :Difference between diopter and corneal center
-
E : Eccentricity of periphery
You can change the present measurement position by pushing SEL button in
KER-P mode. If the measurement fails at the specific position, in case that re-
measurement is needed, or as checking the measured result, you can change
the present measurement position by consecutively pushing SEL button.
Summary of Contents for HRK-7000
Page 1: ... Auto Ref Keratometer HRK 7000 7000A 1 User s Manual Auto Ref Keratometer HRK 7000 7000A ...
Page 43: ... Auto Ref Keratometer HRK 7000 7000A 43 Figure 22 Example of Print ...
Page 47: ... Auto Ref Keratometer HRK 7000 7000A 47 Figure 24 Example of Print ...
Page 53: ... Auto Ref Keratometer HRK 7000 7000A 53 Figure 26 Screen indicating KER P Mode ...
Page 74: ...74 Auto Ref Keratometer HRK 7000 7000A Figure 41 Display of VIRTUAL COMPARISON Mode ...