Chapter 4 CATALYS® System Procedure
Page 166 of 314
Part Number: 0160-6411, Rev A, 02/2019
Software Release: cOS 5.00
Figure 4.5 Safety Margin for Lens Fragmentation
Cross‐sectional view highlighting geometric relationships of lens radius (shown in red); lens
fragmentation pattern (shown in orange); and respective safety margins for the iris and anterior
and posterior lens radii.
Table 4.3 User-adjustable Lens Fragmentation Parameters
Table 4.4 Lens Fragmentation Parameters and Safety Margins
Feature
Default
Range
Step Size
Units
Diameter
N/A
a
a.Default diameter is defined by available pupil diameter (less 2 x safety margin).
3.0-10.0
0.5
mm
Horizontal Spot Spacing
10
5-25
2.5
µm
Vertical Spot Spacing
40
10-100
10
µm
Pulse Energy, Anterior
b
b.Pulse energy to vary stepwise (linear) from posterior to anterior, if different.
8
1-10
0.5
µJ
Pulse Energy, Posterior
b
10
1-10
0.5
µJ
Seg-Soft Spacing
200
100-1500
100
µm
Grid Spacing
350
100-2000
100
µm
Safety Margins
Feature
Default
Range
Step Size
Units
Iris
500
N/A
N/A
µm
Anterior
a
a.Safety margins follow lens surface contours.
500
200-1000
100
µm
Posterior
a
500
500-1000
100
µm
Anterior Lens Radius
Posterior Safety Margin*
User-adjustable from
500 - 1000 µm
Posterior Lens Radius
Anterior Safety Margin*
200 - 1000 µm
Central Lens Thickness
*Safety Margins Follow Lens Surface Contours
Iris Safety Margin
500 µm