Pain Perception at Laser Treatment

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-01-31

Study Completion Date

2010-05-31

Brief Summary

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The purpose of this study is to compare the pain perception at laser treatment of peripheral retinal degenerations with green and infrared wavelengths.

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Detailed Description

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Purpose: To compare the pain perception at laser treatment of peripheral retinal degenerations with green and infrared wavelengths.

Methods: Thirty patients (60 eyes) were enrolled in the study. Each patient had one eye treated with infrared laser (diode, 810nm) and the other eye treated with green laser (frequency-doubled solid state laser, diode-pumped, with 532-nm). The laser treatment was performed following a standardized protocol. Immediately after photocoagulation, the patient was asked to grading pain perception according an 11-point (i.e. 0-10) numerical rating scale (NRS) 2,3, accompanied by the instructions "Please rate your pain by indicating the number that best describes it". This NRS is represented as a straight line (10 cm in length). The numbers between 0 and 10 are spaced at regular intervals along the line, at either end of the line are two poles that are defined as the extreme limits of the response to be measure, with '0' meaning 'No pain' and '10' meaning 'Pain as bad as you can imagine'.

Conditions

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Laser Therapy, Low-Level

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Interventions

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retina photocoagulation

Each patient had one eye treated with infrared laser (diode, 810nm wavelength) and the other eye treated with green laser (frequency-doubled solid state laser, diode-pumped, with 532-nm wavelength

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* horseshoe tears and dialyses, besides operculated holes and lattice degeneration in symptomatic patients (photopsias) or with history of retinal disease