This randomized clinical trial is comparing two different needles (27 gauge versus 30 gauge) for intravitreal therapy (IVT). Standardized questionnaires and pain scales should allow for standard recommendation regarding the optimal needle size for IVT.
Purpose: To evaluate the influence of the type of the needle on pain scores after intravitreal therapy (IVT). Design: Randomized clinical trial Methods: A total of 200 patients, treated with an IVT for exudative age-related macular degeneration (AMD) or a vascular retinal disease, will be included and randomly assigned to be treated with either a 27-gauge needle (group 1) or a 30-gauge needle (group 2). After IVt the patient has to fill out a standardized questionnaire including pain scores on the visual analog scale after the surgical procedure. Regression analysis of the scaled questionnaires should allow for a standard recommendation regarding the optimal needle size for minimal subjective pain during IVT.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
200
The Ludwig Boltzmann Institute of Retinology and Biomicroscopic Laser Surgery, Department of Ophthalmology; Rudolf Foundation Clinic, Juchgasse 25
Vienna, Austria
Visual Analoge Scale
pain scores on the visual analog scale after the IVT
Time frame: 1 day, after the intravitreal therapy (IVT)
patients demographic data
age, gender, number of IVT, surgeon, prior surgical procedures
Time frame: 1 day, record of patients data before or after intravitreal therapy (IVT)
Baker scale
pain scores on the baker scale after the IVT
Time frame: 1 day, after the intravitreal therapy (IVT)
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