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TERMINOLOGY
Term
Description
Page
R-L Travel Distance
When measuring right/left eyes under auto alignment
measurement mode, KR-1W can set the distance of
movement from one eye to the other. "R-L Travel Dis-
tance" means the travel distance, and it can be set
between 58mm and 74mm in 1mm unit.
RMS
Short for Root Mean Square. Standard deviation of ideal
wavefront and actual wavefront. A unit for expressing
aberration quantitatively.
-
SA (Spherical Aberration) Short for Spherical Aberration.
4th order of Zernike polynominal equation, meaning
spherical aberration.
Scotopic
Means dark place measurement.
Screen Layout
Custom layout to select and display maps and RMS as
desired.
In KR-1W, screen layout can be prepared up to four
types.
Screen Shot Output
Function to data-output analysis result screen. KR-1W
outputs the analysis result screen displayed in main body
in bit map style.
Sim-K
Short for Simulated Aberration.
In KR-1W, the highest refractive power value at the
φ
3mm position from cornea apex is expressed as Sim-Ks
and the lowest refractive power value as Sim-Kw.
Axis of Sim-Ks/Sim-Kw is called the Sim-K axis.
Sim-Ks
Refractive power of the flat meridian of 3mm area of
Kerato analysis diameter.
Sim-Kw
Refractive power of the steep meridian of 3mm area of
Kerato analysis diameter.
Smoothing
The Topo-map smoothing function performs analyses by
changing the production algorithm of map information of
the Axial Power map and Instantaneous Power map.
Sph
Spherical refractive power.
Spherical Aberration
Aberrations of even orders (as 4th, 6th, etc.) of Zernike
polynominal equation are expressed altogether as spher-
ical aberration.
Summary map (analysis
result display map)
When right and left eyes are measured more than once,
Summary map can display ocular total aberration and
Landolt's ring simulation for each measurement.
Tap
Light touch to button on screen.
Temporary Setting
Function used to temporarily perform measurements
under certain conditions. Single-eye measurement mode,
IOL mode, etc. can be set. After measurement (and data
output), the system returns to the initial status.
Summary of Contents for KR-1W
Page 1: ...INSTRUCTION MANUAL WAVE FRONT ANALYZER KR 1W ...
Page 2: ......
Page 186: ......
Page 188: ...KR 1W WAVE FRONT ANALYZER 41835 97992 Printed in Japan 2010 02 100LW2 ...