PASCAL
®
Synthesis TwinStar Ophthalmic Scanning Laser Systems
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88293-EN, Rev C
aiming laser spots should provide suitable indication of the level of uniformity attainable in
any given system configuration, and treatment should proceed only when the user is
satisfied as to the level of laser deposition uniformity by observation of properly focused
aiming laser spots. Service personnel should be contacted for any concerns in this regard.
Treatment with laser deposition that is highly non-uniform can result in localized over-
and/or under-treatment of the affected areas.
The larger the pattern, the more likely that spots within the pattern would be non-uniformly
delivered. Smaller pattern sizes may be less likely to produce non-homogeneous lesions
than larger patterns.
There are other variables which may contribute to non-uniform pattern laser application,
including, but not limited to the following: media opacities (i.e. cataract) and heterogeneity
within a particular opacity; ischemic retinal changes; other situations where there is no
visible retinal/media non-homogeneity.
Fiber Optic Cable Assembly
WARNING: LASER HAZARD
Use extreme care with the cable assembly to/from the console and slit lamp. The cable
assembly consists of wiring and fiber optic cables.
Do not pull or stress any cables. Do not exceed bend radius of 15cm
Do not set items on or under the cable assembly.
Damage to the fiber optic cables may cause unintended laser exposure.
Pattern Titration
WARNING
The Physician is expected to show discretion in the dosage and location of the laser
delivery when using the Pattern Titration feature. It is the responsibility of the physician to
select the appropriate power and treatment location.
Please note that when retrieving a favorite that has been saved in titration mode, the
values of the pattern parameters that are not allowed to be changed in titration will be
restored to the defaults.
