Have you heard the one about the blind archer?

No, seriously. Have you?

South Korean archer Im Dong-Hyun is legally blind, with 10 percent vision in his left eye and 20 percent in his right, and says he shoots for the “blow of yellow color” when taking aim at the bullseye 70 meters away. Im is part of the South Korean Olympic men’s archery team competing in the 2012 London Summer Games.

The thing is, Im is anything but the punch line to some crude joke. He’s really, really good.

In the ranking round, he broke his own individual 72-arrow world record by three points with a score of 699. He followed that by combining with teammates Kim Bub-min and Oh Jin-hyek to break another record for 216 arrows with a score of 2,087 – 18 more than South Korea’s previous high score set in May.

“It’s just the first round so I won’t get too excited about it,” Im told reporters.

Oddsmakers are pretty excited about the South Koreans’ chances in London, pricing the men’s archery squad as a -800 favorite to win the team event. The next closest competitors, in the eyes of bookmakers, are the Americans at +900.

Im was part of the gold-medal winning South Korean team at the 2008 Beijing Olympics and 2004 games in Athens.

Odds provided by bet365.com.