Reply to Johnson and Wright.
Philipona
David
D
O'Regan
J Kevin
JK
D003116:Color; D003118:Color Perception / Q000502:physiology*; D006801:Humans; D008027:Light; D017949:Retinal Cone Photoreceptor Cells / Q000528:radiation effects*; D012542:Scattering, Radiation; D009626:Terminology as Topic