Now what physiologists say:
As for vision, color and distance…
Rods and cones are two very different and separate cells that have nothing to do with distance. Rods are achoromatic(colorless) and scotopic(darkness) Their specialty is grays, blacks and whites. The more rods stimulated by a wavelength the brighter and object will appear. Cones are all color or chromatic and photopic, which is to say they react to light. Now getting to the basics it was a Czechoslovakian physiologist(Johannes Purkinje) that noticed colors are more vibrant at dusk; this is because as illumination begins to dim, fewer cones are activated by long wavelenghts rather than shorter ones…Example: rose red…it’s hue is produce by a long wavelength, and it seem bright because it stimulates so many cones…as darkness comes thos cones stimulated drop and the cones that are stimulate by a shorter wavelength(grass green)become brighter…finally at full darkness there is such a low illumination that very few cones are active and the rods began to take over…
As for distance that al depends on the accommodation(the degree in which light rays scatter) The greater the distance the light has to travel, the less the angle of the rays, which results in less bending. So as for distance that all has to do with the lens, and if you are nearsighted, farsighted or suffer from myopia…
Hit you head on your computer, did you feel that or just believe you did?
