Glasses That Solve Colorblindness, for a Big Price Tag

A few weeks back, I wrote about special lenses that were developed to give doctors “a clearer view of veins and vasculature, bruising, cyanosis, pallor, rashes, erythema, and other variations in blood O2 level, and concentration,” especially in bright light.

But these lenses turned out to have an unintended side effect: they “may cure red-green colorblindness.”

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