Editing Color blindness (section)

==Epidemiology==
{| class="wikitable" style = "float: right; margin-left:15px; text-align:center"
|+ Rates of color blindness{{clarify|date=March 2014}}<!--study? year? test sample?-->{{citation needed|date=February 2020}}
|-
! !! Males !! Females
|-
| '''Dichromacy''' || 2.4% || 0.03%
|-
| Protanopia || 1.3% || 0.02%
|-
| Deuteranopia || 1.2% || 0.01%
|-
| Tritanopia || 0.008% || 0.008%
|-
| '''Anomalous trichromacy''' || 6.3% || 0.37%
|-
| Protanomaly || 1.3% || 0.02%
|-
| Deuteranomaly || 5.0% || 0.35%
|-
| Tritanomaly || 0.0001% || 0.0001%
|}
Color blindness affects a large number of individuals, with protans and deutans being the most common types.<ref name=pmid21774112/> In individuals with Northern European ancestry, as many as 8 percent of men and 0.4 percent of women experience congenital color deficiency.<ref>{{cite journal |last1=Birch|first1=Jennifer |title=Subjects with colour vision deficiency in the community: what do primary care physicians need to know? |journal=Journal of the Optical Society of America A |volume=29 |issue=3 |year=2012 |pages=313–320 |doi=10.1364/JOSAA.29.000313|pmid=22472762 }}</ref><ref>{{cite journal |last1=Chan |first1=Xin |last2=Goh |first2=Shi |last3=Tan |first3=Ngiap |title=Subjects with colour vision deficiency in the community: what do primary care physicians need to know? |journal=Asia Pacific Family Medicine |volume=13 |issue=1 |year=2014 |page=10 |doi=10.1186/s12930-014-0010-3 |doi-access=free }}</ref> Interestingly, even Dalton's first paper already arrived upon this 8% number:<ref name="Dalton1" />

{{Blockquote
|text=...it is remarkable that, out of 25 pupils I once had, to whom I explained this subject, 2 were found to agree with me...
|author=John Dalton
|source=''Extraordinary facts relating to the vision of colours: with observations'' (1798)
}}