George Dvorsky/ io9
More from George Dvorsky/ io9
![How Mark Changizi Conquered Colorblindness With Glasses](https://www.popsci.com/wp-content/uploads/2019/03/18/INWGFS4WACI63NAOD6NANA4VBA.jpg?w=525)
Technology
How Mark Changizi Conquered Colorblindness With Glasses How Mark Changizi Conquered Colorblindness With Glasses
By George Dvorsky/ io9
February 8, 2013
By George Dvorsky/ io9
February 8, 2013