Variability of sensitivity thresholds in short-wavelength automated perimetry (SWAP) in the central vision field

• Published in: Archivos de la Sociedad Española de Oftalmología Vol. 75; no. 2; pp. 85 - 90
• Main Authors: Polo Llorens, V, Larrosa Poves, J M, Pinilla Lozano, I, Pablo Júlvez, L, Rojo Aragües, A, Cuevas Andrés, R, Ruiz Moreno, O, Honrubia López, F M
• Format: Journal Article
• Language: Spanish
• Published: Spain 01.02.2000
• Subjects: Adult; Female; Humans; Male; Middle Aged; Reference Values; Sensory Thresholds; Visual Field Tests - methods; Visual Fields - physiology
• ISSN: 0365-6691

To determine the distribution of sensitivity thresholds of short-wavelength automated perimetry (SWAP) in the central visual field, analysing their variability depending on the eccentricity, in normal subjects. 128 eyes of 128 normal subjects were analyzed. They underwent a SWAP examination. A lineal regression model was used to establish a <<standard visual field>> (SVF). The SVF determines the threshold distribution and its variability. The regression analysis obtained a SVF, age-corrected, which considers the influence of age in the different points of the visual field. The threshold distribution showed higher inter-subject deviations as eccentricity increased (p<0.001). The determination of variability of the threshold sensitivity deviations in the different points of the central visual field allows future development of perimetric algorythms for SWAP.