Red-green colorblindness is the most common form of colorblindness in men, affecting 7 percent of all men. It’s rare in women, though, affecting only 0.4 percent of all women.

There are four types of red-green colorblindness:

 Deuteranomaly (weak green), Deuteranopia (Green Absence) ,Protanomaly (weak red) and Protanopia (Red Absence)

Covisn Color Correct Glasses  are suitable for the people with red color blindness, green color blindness, and red-green color blindness. The cure rate of these kinds of color blindness is as high as 97%, bringing true natural color freshness to its users.