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Type: Artigo de periódico
Title: Pain Perception At Laser Treatment Of Peripheral Retinal Degenerations With Green And Infrared Wavelengths.
Author: Lira, Rodrigo Pessoa Cavalcanti
Nascimento, Mauricio Abujamra
Arieta, Carlos Eduardo Leite
de Carvalho, Keila Miriam Monteiro
Silva, Valdir Balarin
Abstract: To compare the pain perception at laser treatment of peripheral retinal degenerations with green (532-nm) and infrared (810-nm) wavelengths. Prospective randomized clinical trial. Sequential patients with indications for photocoagulation of bilateral peripheral retinal degenerations were invited to participate in the study. Thirty patients (60 eyes) were enrolled in the study. Each patient had 1 eye treated with infrared laser (diode, 810-nm wavelength) and the other eye treated with green laser (frequency-doubled solid-state laser, diode-pumped, with 532-nm wavelength). The eyes were randomized to infrared or green wavelengths. The right eye was the first treated in all cases regardless of the wavelength arrangement. Immediately after photocoagulation of each eye, the patient was asked to grade pain perception according to an 11-point (ie, 0-10) numerical rating scale (NRS), with 0 meaning No pain and 10 meaning Pain as bad as you can imagine. The primary outcome was the assessment of pain. The mean grading of pain perception was 2.80 (SD 1.27; mode and median = 2) to green wavelengths and 5.07 (SD 1.36; mode = 4 and median = 5) to infrared wavelengths (P < .001). The results showed a statistically and clinically significant difference of pain perception between the 2 groups, with advantage to the green laser group.
Subject: Adolescent
Laser Coagulation
Lasers, Semiconductor
Lasers, Solid-state
Middle Aged
Pain Measurement
Prospective Studies
Retinal Degeneration
Young Adult
Citation: American Journal Of Ophthalmology. v. 150, n. 5, p. 726-730.e1, 2010-Nov.
Rights: fechado
Identifier DOI: 10.1016/j.ajo.2010.05.027
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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