[Evaluation of the desaturated Panel D-15. I. Method of quantification and normal scores].

Description of a method of quantification of the desatured Panel D-15 test: the principle was the calculation of the differences between the caps of the desatured Panel D-15, according to the differences between the corresponding caps of the 100-hue test, thus allowing the calculation of partial and total scores. 337 normal subjects, divided in 5 years age groups, were examined by this procedure. A color discrimination impairment was evidenced, the total scores being increased in the older age groups. These results give norms for clinical evaluations.