Comparison Between Static and Kinetic Threshold Fluctuations Determined by Automated Perimetry

Static threshold fluctuations have already been analyzed by other Authors. In this work, short and long term intra- and interindividual threshold fluctuations in static perimetry were compared with those obtained by kinetic perimetry under the same testing conditions. Both normal and pathological visual fields were considered. A computerized Goldmann perimeter (Perikon, Optikon) (Fig. 1) was employed to reproduce constant examination conditions and to avoid any variables due to different examiners. This investigation has demonstrated that intraindividual threshold fluctuation in Open image in new window Fig. 1 Fig. 1. The computerized Goldmann perimeter ‘PERIKON’ both static and kinetic procedures are not consistently correlated, however a better correlation is noted if the sensitivity gradient steepness increases. The interindividual overall average fluctuation is lower with the kinetic than the static method in both the short and long term, without any relationship to eccentricity.