The Farnsworth's 100 Hue test is used for the evaluation of small physiological variations in colour discrimination.

Roth's Hue 28 test with 100 charts and instruction manual(as the D15 test but with higher sensitivity).

Lanthony's 40 Hue test with 100 charts and instruction manual.

Farnsworth's dichotomous test, D 15 type with 100 charts and instruction manual. Studies the characteristic axes of true dyschromatopsia.

Lanthony's desaturated 15 Hue test with 100 charts and instruction manual. The administration of this test with paler colours (lower saturation) allows the study of lesser dyschromatopsias.

Lanthony's New colour Test with 100 sepatation charts, 100 classification charts and instruction manual. Studies quantitatively the neutral zone characteristics of dyschromatopsia and evaluates the relative luminance.

Lanthony's Tritan Album. Permits selective study of blue-Yellow axis dyschromatopsia. For the clinical dianosis of acquried colour defects and particular, retinal disorders.