A pilot study was undertaken using data from a population based screening program.The study aimed to determine the reliability of the frequency doubling technology using the Octopus 101 as the gold standard. 38 test eyes underwent frequency of doubling and octopus perimetry.Frequency doubling perimetry results were then correlated with Octopus perimetry results.Twenty-one out of the thirty-eight test results had a positive correlation.Test results showed a high sensitivity (76%) as compared with a lower (48%) specificity of the frequency-doubling perimeter for detecting visual field abnormalities
Human ; PERIMETRY