Novel glasses can help the color-blind perceive more colors
More colors is always a good thing -- especially for those who didn't yet get to enjoy them.
Tag: Seeing
Scientists find a woman that can see 99 million more colors than you or me
Just one extra cell type can make a huge difference.
Half the world will need glasses by 2050
Nearly half the world's population, close to some 5 billion people, will develop myopia by 2050 according to a study ...
How the eye works
How eyesight works and other functions.