Among the colour blind 20 (1.2%) were protanopes, 3 (0.2%) were deuteranopes and none were tritanope.
Distribution of Protanopes and Deuteranopes Colour Blind Protanopes Deuteranopes Total Affected 20 (1.2%) 3 (0.19%) 23 (1.4%) Table 3.
(2014) found different selections for real protanopes and real deuteranopes.
Pridmore, 2014) [L.sub.R] values over one for real protanopes and the pseudoachromatic greens (they see such stimuli lighter than do common observers) but [L.sub.R] values below one for real deuteranopes (they see the pseudoachromatic greens darker).
Additionally, the current study complements our previous work (Lillo et al., 2012; Moreira et al., 2012) on dichromats' (protanopes
and deuteranopes) use of BCTs (for a complete description of both studies see Moreira, 2010).
The differences are statistically significant, except for normal participants between G and Y signals, for deuteranomals between G and Y signals, for deuteranopes between R and Y signals, for protanomals for Y signals with both R and G signals, and for protanopes
for Y signals with both R and G signals.
I had more of Tritan type, which is 25.8%, Deuteranope 4.7%, and Protanopes
The two observer types for whom alterations in luminance-lightness are the most well known are protanopes
and aged tritanomalous (op.
Dichromats lack red pigment gene and those lacking green pigment gene are known as Protanopes
while those lacking blue green pigment are known as Tritanopes (4).
Those with colour vision defects see the spot differently; for example protanopes
usually describe it as blue or dark because their red sensitivity is reduced, and most deuteranopes cannot see the spot at all.
The classification plates are more effective for deuteranopes than protanopes
, with a correct classification possible for around 90% of deuteranopes and around 80% of protanopes
The neutral points for deuteranopes, protanopes
and tritanopes are around 498nm, 492nm and 569nm respectively.