Optics Experimental Review

What did we learn?

Color blindness is a vision condition in which a person has difficulty distinguishing certain colors, usually due to problems with the color-sensing cells (cones) in the retina of the eye. It often makes it hard to tell the difference between shades of red and green (Protanopia & Deuteranopia), or sometimes blue and yellow (Tritanopia & Tritanomaly). In rare cases, a person may not see any color at all, only shades of gray (Monochromacy or Achromatopsia). Instead of three types of cones (red, green, & blue) like seen in humans, animals can have a fewer amount or more than three, leading to them being able to see different colors than humans.