PASCAL
®
Synthesis TwinStar Ophthalmic Scanning Laser Systems
Page 60 of 142
88293-EN, Rev C
Arc
Primary pattern Secondary pattern
20ms Arc
General Use
•
PRP, retina tears, retina detachments
Pattern
Spot Diameter (
μm
)
Spacing
Radius
(Inner ring)
20 ms Arc
200
0.00Ø
500μm to 1400μm
0.25Ø
500μm to 1600μm
0.50Ø
500μm to 1900μm
400
0.00Ø to 0.50Ø
500μm to 2000μm
20 ms Arc with
Auto Advance
200
0.00Ø
500μm to 1000μm
0.25Ø
500μm to 1200μm
0.50Ø
500μm to 1500μm
The Arc pattern is selectable in various shapes and sizes, including a single spot, a full
circle, and arcs of any number of spots in between. Spot diameter, spacing, and radius
settings are also adjustable.
To select the Arc pattern shape and size, drag your finger around the Arc pattern, or press
the secondary pattern button at the bottom of the Arc pattern screen to select a full circle.
Auto Advance Feature
If the Auto Advance feature is enabled, the inner ring pattern is delivered when you
depress the footswitch, after which the system automatically advances to the middle ring.
When you press the footswitch a second time, the middle ring pattern is delivered, and the
system advances to the outer ring. Press the footswitch a third time to deliver the outer
ring pattern. After the outer ring pattern is delivered, the system returns to the inner ring.
System Automatically Advances to Next Ring
when Auto Advance Feature is Enabled
NOTE
•
If the Auto Advance feature is disabled, only the inner ring displays on the Arc
pattern screen.
•
The Endpoint Management feature is not available for Arc pattern.
