Explanation
of the plates
Slide no. 2, 3= The normal read them as 8 (No. 2) and 29 (No. 3).
Those with red-green deficiencies read them as 3 (No. 2), and 70 (No. 3).
Those with total colour blindness can not read - any numeral.
Slide no. 4,5,6&7= The normal read them as 5 (No. 4), 3 (No. 5), 15 (No. 6) and 74 (No. 7).
Those with red-green deficiencies read them as 2 (No. 4), 5 (No. 5), 17 (No. 6) and 21 (No. 7).
Those with total colour blindness can not read
any numeral.
Slide no. 8= The normal read them as a nd 45 (No. 8).
The majority of those
with colour vision ceficiencies can not read them or reaf them incorrectly.
Slide no. 9,10,11&12= The normal read them as 5 (No. 9), 7 (No. 10), 16 (No. 11) and 73 (No. 12).
The majority of those with colour vision deficiencies can not read them or
read them incorrectly.
Slide no. 13= The normal read them as 26 (No. 13)
In protanopia and strong protanomalia only 6 (No. 13) can be read, and
In case of mild protanomalia both numerals on each plate can be read but the 6 (No. 13) is clearer than the other numeral.
In deuter- anopia and strong deuterarlomalia only 2 (No. 13) can be read, and
In case of mild
deuteranomalia both numerals on each plate can be read but the 2 (No. 13) is clearer than the other
numeral.