How do color blind tests determine if someone is color blind?
When someone is color blind, that usually means they have a poor ability to discriminate between certain combinations of colors. The test use various techniques (like numbers on colored backgrounds) to show people these different color combinations in order to figure out which they can and cannot see. Depending on the results, an ophthalmologist (or other tester) can determine which type of color blindness a person has (if any). Q: After attending a photography program at your college earlier this year, one of the teachers had said that the human eyes can see the color green the easiest. Why is that? A: Honestly, I would say that you were misled slightly. Our visual system is most sensitive to green wavelengths of light, so if it were completely dark and someone flashed a very dim light in front of you it would be easiest to detect (i.e., the least energy required) if it were a green wavelength. However, at that level of illumination you really couldn’t even tell it was colored. This f
