It is well known and documented that some women, as many as 10%, are tetrachromates. Implications are simple: while most people can distinguish only three different colors and their variations, tetrachromates can distinguish four colors and their variations, enabling them to see up many more colors, theoretically even 200 time more.
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Synopsis

All current sunglasses and lenses are aimed to reduce luminous intensity of field of view as a whole, to enable an eye or a sensor to process the image better. In other words, we can see better when the image is not too bright. But what happens to the objects that are not that bright when we use sunglasses? When we are in the desert environment, and there are some objects that are using camouflage? Or when we are driving at night and there are bright objects shining right at our faces? For example when there is an oncoming vehicle, there are not many options that are available. Either we don’t look at it and look at the side of the road, not to get blinded, or we look straight and get blinded. The situation is even worse when the oncoming car has its high beams on. We can’t have sunglasses at night, since we wouldn’t see the road in front of us.

This idea provides the solution in form of Adaptive Sunglasses, which filter out only the bright object in the field of view, and not unnecessarily dimming the rest. They can be constructed using current technology, and can range from low quality builds from your own garage, all the way to the NASA grade, filtering even tiniest sources of light, leveling out the brightness of the field of view.
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