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What is a Protan?

Protans are people with protanomaly, a type of red-green color blindness in which the red cones do not detect enough red and are too sensitive to greens, yellows, and oranges.

As a result, greens, yellows, oranges, reds, and browns may appear similar, especially in low light. It can also be difficult to tell the difference between blues and purples, or pinks and grays. Red and black might be hard to tell apart, especially when red text is against a black background.

What are Enchroma glasses?

Enchroma glasses look like ordinary tinted glasses, but the effect they have on color vision is extraordinary. If you have red-green color blindness, Enchroma glasses can reveal a greater spectrum of color without compromising either color accuracy or balance.


30% of people with strong protanomaly experience improved color vision with Enchroma glasses. However, the effect is often subtle and you may need to wear the glasses a few weeks before you start to notice. You can try our glasses risk free. We accept returns for any reason within 60 days.


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