The PASCAL® (Pattern Scan Laser) Photocoagulator is a fully integrated pattern scan laser system designed to treat retinal diseases using a single spot or a predetermined pattern array of up to 56 spots.

The PASCAL technology platform is based upon the use of a proprietary, semi-automated, pattern generation method employing short 532 nm laser pulses. These laser pulses are delivered in a rapid predetermined sequence resulting in improved precision, safety, patient comfort, and a significant reduction in treatment time compared with single-spot photocoagulation.

Pre-clinical animal studies, as well as initial pilot studies in humans indicate that in addition to reducing treatment duration for typical patients with proliferative diabetic retinopathy, the number of sessions may also be reduced.

This fully integrated system incorporates design advancements including:

Intuitive touch screen user interface
Pattern scanner technology
Advanced optics slit lamp
Slit lamp mounted micromanipulator
Dual slit lamp mounted rotary power controls
PrecisionSpot™ laser delivery
LIO compatible
Wheelchair accessible table
Ergonomic features for physician and patient

Benefits

Speed
More efficient than standard single shot photocoagulation.

Improved Comfort
Patients are likely to experience less discomfort and therefore have more tolerance for the procedure.

Advanced Precision
Macular Grid treatment provides an improved margin of safety and dosimetry control when compared with single shot treatments. Unlike the irregular pattern placement obtained in single shot photocoagulation, PASCAL delivers more even pattern burns.

Ease of Use
The PASCAL Method of photocoagulation is similar to single shot photocoagulation, therefore physician training is minimal.

Fundus Images
Pan retinal photocoagulation for proliferative diabetic retinopathy. These 600 micron burns were obtained by using a 3x3 array.
Laser photocoagulation demarcation surrounding posterior retinal tear adjacent to retinal venule with sub-clinical retinal detachment in a patient with preceeding blunt trauma. These 400 micron burns were obtained using a combination of modified grid and 3x3 pattern arrays.
Complete Pan retinal photocoagulation for proliferative diabetic retinopathy. These burns were obtained using a variety of square array patterns with a pulse duration set at 20ms.
Pan retinal photocoagulation for proliferative diabetic retinopathy. The burns on the left side of the fundus photograph were the result of conventional, single spot photocoagulation. The arrayed burns were obtained with the Pascal Method of Photocoagulation.
Macular Grid for clinically significant diabetic macular edema. The extrafoveal burns on the superonasal hemisphere of the fundus image were the result of conventional single spot treatment. The burns on the lower, inferotemporal extrafoveal region were obtained by means of the Pascal Method of Photocoagulation.
Slit lamp image post pan retinal photocoagulation for Proliferative Diabetic Retinopathy.

Lower half of image: Conventional single spot photocoagulation (pulse duration was 100 ms).

Upper half of image: Pascal Method of Photocoagulation (4x4 array – pulse duration was 20 ms).
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