■
3-18
● Checking
central corneal thickness
The measured central corneal thickness is shown on the R/L eye analysis
screen and single eye analysis screen.
Abbr
eviati
on
Analysis item Unit
Details
CCT
Central
corneal
thickness
μ
m
The thickness of the cornea at its center
CCT
(US)
Ultrasonic
correction for
central
corneal
thickness
μ
m
The reference value expected when
measuring the same corneal thickness
using the ultra-sound pachymeter
- A hyphen (-) is shown in CCT and CCT (US) when CCT cannot be
measured.
- It can be se
t on the System Setup screen whether to show “CCT (US)” or not.
Refer to “3.7.3 Application”
for setting method. The initial setting is OFF.
- CCT (US) is calculated by adding a specific thickness (offset value) to CCT.
The offset value can be changed on the System Setup screen. Refer to
“3.7.3 Application”
for setting method. The initial setting is “13μ
m
”
.
● Checking distribution according to sizes/shapes
Distribution according to cell sizes and shapes obtained by automatically
analyzing the displayed image of endothelium is displayed using a histogram
on the single eye analysis screen.
- The class width of distribution according to cell sizes can be set on the
System Setup screen. Refer to “3.7.3 Application”
for setting method. The
initial setting
is “100 μ
m
2
”
.
- If the cell outlines cannot be extracted correctly by automatic analysis,
neither a bar nor a number is displayed on the histogram.
● Changing displayed image
s
The displayed endothelial images are automatically analyzed and resultant
images are displayed on the R/L eye analysis screen and single eye
analysis screen. Use the following buttons to change the image.
Abbrevi
ation
Item
Details
Photo
Captured
image
Displays the captured image.
Trace
Cell
outlines
Displays outlines of extracted endothelial cells in
red.
The outlines of the Dark Area are shown in blue
when the Dark Area
is extracted. Refer to “1.3
Glossary” for
Dark Area.
Area
Area-
specific
Displays an endothelial image color-coded
according to cell area.
Apex
Shape
specific
Displays an endothelial image color-coded
according to cell shapes.
- The image to be displayed immediately after automatic analysis can be
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