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TERMINOLOGY
Term Description Page
Fogging During Continu-
ous Measurement
For KR-1W, when performing Ref measurement more
than once, to perform fogging for each measurement or
to perform fogging only once in the first measurement
can be set.
For example, when auto alignment mode is "FULL
AOTO," number of continuous measurements under Auto
mode is "3," and R-L continuous measurement is "BINO,"
select "ONCE" to perform fogging in the first measure
-
ment each of right/left eyes, or select "ALWAYS" to per-
form fogging for each measurement.
130
Fourth-order Display 4th order of Zernike polynominal equation. 85
Hartmann Detection Grid
Overlay
To detect Hartmann point image, detection area is dis-
played.When grid overlay is displayed, Hartmann point
image cannot be detected if it is out of the range.
97,146
Hartmann Detection Point
Overlay
From the Hartmann image displayed on analysis result
screen, the range where the recognized point image is
located can be confirmed. Point overlay is overlapped.
97,146
Hartmann exposure time Hartmann image may not be measured with the IOL
insertion eye and the cataract eye.For KR-1W, using the
Hartmann exposure time at this time allows changing the
exposure time of the camera, leading to the occurrence
rate of errors.
126
Hartmann Image Image taken by Hartmann-Shack sensor's principle.
In KR-1W, Ref measurement values and wavefront aber-
ration related to eyeball are calculated.
77,79,96
High Order Aberration
(irregular astigmatism)
Aberrations of Zernike polynominal equation (3rd and
higher orders). Called irregular astigmatism, which can
-
not be corrected by eyeglasses and contact lenses.
88,95,10
4
HOA Short for High Order Aberration. 143
HV Corneal curvature radius (mm) in horizontal/vertical
direction or corneal refractive power (D) and the angle,
obtained from the results of Kerato measurement.
144
I Mark Mark displayed in the receipt outputted by internal printer
in IOL mode measurement.
24
Instantaneous Power
map
Map showing corneal refractive power with local power
distribution.
83,143
Internal Aberration Intraocular aberration obtained by (aberration of the
whole eyeball minus aberration of cornea).
85
IOL Mode Hartmann image may become unmeasurable on eyes
wearing IOL and eyes suffering cataract.
In this case, KR-1W, using IOL mode, can change cam-
era's exposure time and lower error rate.
126
IOL Selection Map (anal-
ysis result display map)
Map displaying analysis information necessary for pre-
scribing IOL.
87
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