WHY ARE SO MANY PEOPLE NEARSIGHTED?
• http://www.popsci.com, By Alexandra OssolaRESEARCHERS MAY HAVE FOUND THE ANSWER THAT COULD KEEP GLASSES OFF ONE-THIRD OF THE WORLD'S POPULATION
RESEARCHERS MAY HAVE FOUND THE ANSWER THAT COULD KEEP GLASSES OFF ONE-THIRD OF THE WORLD'S POPULATION