Sight begins when light bounces off surfaces and enters our eyes. The muscles of our pupils control how much light passes through, and the clear cornea and lens bend the light and focus it onto the ...

Forbes contributors publish independent expert analyses and insights. I help people communicate data clearly with graphs. This map is extremely informative for those of us with normal color vision.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In the human eye, there are three types of cone cells that regulate color vision, sensing red, ...

University of Central Florida College of Nursing STIM Center assistant director Syretta Spears in the school’s Critical Care Simulation Lab, Tuesday, October 12, 2021. (Joe Burbank/Orlando Sentinel) ...