You are currently previewing the NEW Scientific American site. Tell us what you think or view the old site

Skip to main content


New Eyewear Could Help People with Red-Green Color Blindness

Glasses based on a new color vision theory are already being used medically to enhance vasculature and bruising beneath skin. Now they are being tested to aid those with color blindness, although the lenses inhibit the perception of yellows and blues

February 5, 2013 — Sam McNerney and Txchnologist

Starting Thanksgiving

Enter code: HOLIDAY 2015
at checkout