Well, actually there are many kinds of glasses which can be used by color blindness people who have difficulty in distinguishing some colors. Long before, there was a German scientist who wrote about the possibility of restoring color vision with lenses. However, it wasn't until the twentieth century that many began to experiment with tinted glasses to help people who were colorblind. So now you can try tinted glasses to help you. And generally speaking, the process of using tinted glasses to improve colorblindness is very simple. First, you should know that the colorblind person should use a tinted lens on the non-dominate eye. In this way, it will make both eyes to see different colors because both sides of the brain will work together to get information from the side using the tinted lens. Anyway, it is very convenient. And you can just surf them online shop.