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African Health Sciences
Makerere University Medical School
ISSN: 1680-6905
EISSN: 1680-6905
Vol. 18, No. 4, 2018, pp. 1010-1017
Bioline Code: hs18125
Full paper language: English
Document type: Study
Document available free of charge

African Health Sciences, Vol. 18, No. 4, 2018, pp. 1010-1017

 en PASCAL laser platform produces less pain responses compared to conventional laser system during the panretinal photocoagulation: a randomized clinical trial
Inan, Sibel; Polat, Onur; Yıgıt, Safiye & Inan, Umit Ubeyt


Background: Most of patients experience pain during the panretinal photocoagulation(PRP). Laser photocoagulation delivery has advanced with the introduction of pattern-scanning laser systems (PASCAL). Shorter pulse duration and less choroidal penetration believed to reduce pain during the laser treatment.
Objectives: To compare the severity of expressed pain scores in patients with PDR who underwent PRP either with PASCAL laser or conventional laser.
Methods: A total of 28 patients with a diagnosis of PDR who were scheduled for bilateral PRP therapy were enrolled into the prospective study. Both eyes were treated within the same session and while one eye was treated with PASCAL the other was treated with conventional laser randomly. Pulse duration was adjusted to 100-ms in conventional laser and 30 ms in PASCAL. The severity of pain was graded using a verbal scale and a visual analog scale (VAS).
Results: Mean age was 61.36±9.10 years. Mean verbal and VAS scores were 1.32±0.47 and 2.86±1.21 in the PASCAL laser and 2.39±0.49 and 5.75±1.35 in the conventional laser group, respectively. Differences between expressed pain scores obtained by both two scales were statistically significant (p<0.001).
Conclusion: PASCAL laser significantly alleviates pain levels possibly due to the shorter laser pulse duration and lower intensity.

Panretinal photocoagulation; PASCAL; pain.

© Copyright 2018 - Inan et al.

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