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[Variability of sensitivity thresholds in short-wavelength automated perimetry (SWAP) in the central vision field]
V Polo Llorens1, J M Larrosa Poves, I Pinilla Lozano
1Servicio de Oftalmología, Hospital Miguel Servet, Zaragoza, España.
Purpose:
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.
Methods:
128 eyes of 128 normal subjects were analyzed. They underwent a SWAP examination. A lineal regression model was used to establish a <
Results:
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).
Conclusions:
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.