Background - The Pascal® is a semi-automated photocoagulator that delivers a pattern array of multiple burns in a rapid predetermined sequence with a single foot pedal depression. Each burn is reduced to 10 or 20ms to achieve this. We aim to report our early experience with this system.
Methods – 75 procedures done in 60 patients divided into four groups – group A – patients undergoing PRP, group B – patients undergoing focal or modified grid macular laser, group C – patients undergoing macular grid, and group D – patients undergoing retinopexy were retrospectively studied.
Results –31/34 procedures in group A, 24/26 procedures in group B, 5/7 procedures in group C and all 8 patients in group D had successful outcomes. Significantly higher powers were required with the Pascal® than with conventional laser (p<0.001) in eyes that underwent PRP and focal/modified grid macular treatment with both systems. Single session PRP was successfully performed in 5 patients and 5 were successfully treated with a macular grid using pattern arrays only. No adverse events were noted.
Conclusion – Although the shorter pulse duration of the Pascal® necessitates the use of higher power, it is not associated with adverse effects. Our results suggest that the Pascal® photocoagulator is safe, effective and offers several potential advantages related to the brief exposure time.