Evening Republican, Volume 20, Number 97, Rensselaer, Jasper County, 22 April 1916 — How Light Affects the Eye. [ARTICLE]

How Light Affects the Eye.

in a dim light the conditions obtained in full diylight do not apply so far as the eye is concerned. In a fee ble illumination the eye becomes raor* or less color-blind and is highly Insen sitive to red. which appears .lea black, whereas green and blue object appeal as uncanny gray.