. Author manuscript; available in PMC: 2017 Feb 18.

Published in final edited form as: J Opt Soc Am A Opt Image Sci Vis. 2016 Mar;33(3):A65–A76. doi: 10.1364/JOSAA.33.000A65

Table 2.

Tolerance Limits of Vector Length of Thresholds^a

Age (yrs.)	16–30	31–60	61–88	16–50	51–88	All Ages
N	62	55	45	101	61	162
Protan	78.3	95.8	124.9	83.8	117.5	97.6
Deutan	79.3	88.8	131.7	78.3	123.9	98.8
Tritan	138.1	190.5	356.4	149.5	326.5	237.9

Tolerance limits are for 90% of the population with 95% probability.