PASCAL
®
Synthesis Ophthalmic Scanning Laser Systems
Page 55 of 141
88292-EN, Rev D
Triple Arc
Primary pattern
Secondary pattern
20ms Triple
Arc
Not available
General Use
•
PRP, retina tears, retina detachments
Pattern
Exposure
Time (ms)
Spot
Diameter
(μm)
Spacing
Curvature
EPM %
20 ms Triple Arc
15 to 30
200
0.25Ø to
3.00Ø
0.00 to 2.00
10 to 95
400
0.25Ø to
1.50Ø
The Triple Arc pattern is selectable in various orientations, depending on the spot diameter,
spacing, and curvature settings. You must select the spot diameter, spacing, and curvature
settings before selecting the pattern orientation. If you select the pattern orientation and then
select the spot diameter, spacing, and/or curvature settings, the pattern returns to its default
orientation.
To select the pattern orientation, drag your finger along the outside of the rotation guide that
displays in the pattern background.
Auto Advance Feature
If the Auto Advance feature is enabled, the first Triple Arc pattern is delivered when you
depress the footswitch, after which the system automatically rotates the pattern at 30 degree
intervals. When you press the footswitch a second time, the pattern is delivered, and the
system automatically rotates pattern.
The orientation is selectable in clockwise and counter-clockwise on the Physician
Preferences.
System Automatically Advances to Next Pattern
when Auto Advance Feature is Enabled