It is estimated that there are approximately 300 million people worldwide living with color vision deficiency. They have difficulties 'naming' some of the colours, since greens, yellows, oranges, reds, and browns may appear similar to them, especially when the light is bad. People with colour blindness find it difficult to tell apart blues and purples, or pinks and grays.

EnChroma, a company from California, boasts a large team of researchers, engineers, and technology experts as well as an advisory board of vision scientists, dedicated to developing innovative eyewear products with cutting-edge optical technology for men, women and children. They make glasses, designed with a special spectral-filtering technology to help red-green color blind people see an enriched spectrum of color – without compromising color accuracy or balance.

According to EnChroma, people with normal color vision are able to see about 1 million distinct shades of color, while the colour blind see only about 5% to 10% as many. "Most people with regular color vision don't realize the limitations and everyday frustrations color vision deficiency can cause for the color blind," said Andrew Schmeder, CEO of EnChroma. "Before EnChroma, optometrists and other healthcare professionals really had little they could offer their color blind patients."

EnChroma glasses do not, however, treat the condition nor provide the ability to overcome all occupational limitations. What they do is they boost and improve color vision, and are effective for about four out of five color blind people. Currently, there are already over 25,000 color blind people around the world using EnChroma's eyewear.

See the reactions from people trying out the glasses.