Our latest Freakonomics Radio on Marketplace podcast is called “Playing the Nerd Card.”
It's about the rise in basketball players (and other athletes) showing up at press conferences wearing the kind of eyeglasses usually associated with Steve Urkel and Buddy Holly. Among the practitioners: LeBron James, Dwyane Wade, Kevin Durant and Russell Westbrook, Carmelo Anthony, and Robert Griffin III.
What's going on here? Has the rate of myopia exploded, even among premier athletes?
We talk to Susan Vitale, a research epidemiologist with the NIH's National Eye Institute, who worked on a large study on myopia in the U.S. There has indeed been a huge spike in recent decades, and it's especially pronounced among blacks.