We bought the TP-006 color blind glasses for our red-green color blind son to test him more expensive options like contact with would benefit from a red filter, or the more famous color blind glasses that cost over $250. First, let's clear up some misunderstandings. These glasses do not allow the person to see the missing colors like a non-color blind person. Instead, these glasses help change the contrast of colors that look the same to have more or less contrast so a person can better distinguish them from other colors that usually look the same. When my son put them on, he didn't notice any difference at first. It wasn't until he started noticing certain objects around the house and outside that now looked different that he was able to appreciate the effect. For example, some yellows now "pop" (his words). He can now see yellow warning signs. Now he sees the yellow stripes on the road. Now he can tell from a much greater distance whether a traffic light is red, yellow or green. In the color blindness test, he can still correctly identify a few targets. These glasses are as dark as sunglasses, making them difficult to use indoors or outdoors in cloudy or evening weather. The side of the lens that we see has an iridescent specular tint. The side of the lens that the user is looking through gives the world a pink tint with a sunglass effect. It reminds me of looking at a blank frame on developed 35mm film. The fit is similar to any aviator sunglasses you'll find in a big store. It comes with a nice storage case and the design seems to be comparable to regular sunglasses. I'm rating it 5 stars because of the price compared to the competitor ($70 vs. $299) and it does what it is. Designed to allow a color-blind person to distinguish several more shades that are usually mixed. For my son it didn't capture all the targets on the color blindness test and I'm curious if there are any. Other lenses would help more. For now, it was enough for us to move forward by touching the red filter on his non-dominant eye.
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