title: Clinical measurement of saturation discrimination.
abstract: In this paper, we describe how a circular reflective neutral-density wedge can be used to construct an apparatus which provides a relatively rapid procedure for the clinical measurement of saturation discrimination. Subsequent to an initial measurement of the patient's relative luminosity function, the patient need only turn a single control which varies the colorimetric purity of a test field which remains luminance matched to a white light reference field.
authors.forename: K E
authors.initials: KE
authors.lastname: Higgins
authors.forename: K
authors.initials: K
authors.lastname: Knoblauch
authors.forename: E
authors.initials: E
authors.lastname: Thall
authors.forename: N J
authors.initials: NJ
authors.lastname: Coletta
authors.forename: F L
authors.initials: FL
authors.lastname: Ferris
authors.forename: F M
authors.initials: FM
authors.lastname: de Monasterio