Imagine not being able to see colors in their full spectrum. Imagine going to a store and instead of choosing a fruit from a festival of colors you get to see this:
This could be hard to imagine or understand for people accustomed to colored vision. Up to one in 12 men and one in 200 women suffer from red-green color-blindness, the most common color vision deficiency. Most people have three types of color-sensing cones in their eyes: red, green, and blue. The wavelengths of light that these three cones absorb have overlapping regions and when a malfunctioning cone causes wavelengths to overlap even more, it results in poor color discrimination.
Luckily, there is now a solution to this problem – EnChroma glasses use a filter to cut out these overlapping wavelengths, allowing for a clearer distinction between colors, especially red and green. The creator of the invention is Don McPherson, who has a PhD in glass science at Alfred University. His invention brings many people joy, wonder and relief. Many touching reactions where filmed when a color blind person sees colors for the first time, and we can witness how much emotion it can bring on the video below: