[The tritan plates of the Ergovision apparatus: evaluation]

The two pseudoisochromatic tritan plates of the Ergovision apparatus were evaluated in 215 normal pathological subjects, by comparison with the usual clinical albums H.R.R., S.P.P. 2 and tritan album. A good specificity for tritan axis and a good correlation (according to statistical K of Cohen) with H.R.R. and S.P.P. 2 was evidenced for the plate n.1; this plate was not very influenced by age of the subjects. Conversely, the plate n.2 was in poor correlation with the 3 albums, and multiple false positive responses were evidenced, particularly in hereditary red-green dyschromatopsias and in subjects after 50 years.