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DETAILS OF THE SETTING MENU
Item buttons for setting parameters
(1) Scan Pattern
Scan pattern means the shape or kind to be scanned. It is classified into the following 5 kinds:
Line:
Scans linearly.
3D:
You can scan the range (Scan Size) with the horizontally-set resolution (Scan
Resolution) and display the scanned object as a stereograph.
3D Wide (H):
You can scan the range (Scan Size) with the horizontally-set resolution (Scan
Resolution) and display the scanned object as a stereograph.
5 Line Cross:
Scans with five lines in each of horizontal and vertical directions at regular inter-
vals crosswise.
Radial:
Scans radially with the set radial lines (Radial Scan Count).
(2) Scan Size
"Scan Size" means the length or range to scan.
(3) Scan Resolution
"Scan Resolution" means the data quantity to be read by scanning. In the "Line" and "Radial"
scans, it is the data for one line. In the "3D" scan, it is the data for each side of "Length×Width". As
the scan resolution is higher, a more detailed tomogram can be obtained and at the same time the
data quantity is increased. So, it takes a longer time to process the read data and the saved data is
increased.
(4) Fundus Photography
You can set whether the fundus photography should be done.
This item cannot be set in the instrument without the fundus photography function.
(In DRI OCT-1 Model Triton plus, you can select "Color" and "Auto Fluo".)
(5) Fixation Position
Set the fixation position of the patient. There are five selectable items for setting, "Disc" (optic disc),
"Center", "Macula", "Wide" and "External" (external fixation target). When "Disc" is set, the optic
disc is positioned at the center of the photography screen for the fixation target. When "Center" is
set, the middle position between the optic disc and macula is positioned at the center, and when
"Macula" is set, macula is positioned at the center. When "Wide" is set, the middle position between
"Center" and "Macula" is positioned at the center. When "External" is set, the internal fixation target
is turned off and the external fixation target is used.
(6) Over Scan Count
"Over Scan Count" means the following function: The data is read several times at one position for
one scanned line. Two or more tomograms at one position are obtained and are displayed in the
overlapped status. Consequently the tomogram with better contrast than usual can be obtained.