"My six-year-old daughter has double vision; can you help her?" asked a chiropractor during a KST seminar. He brought her in the next day. She said she saw double if the object was closer than about a dozen feet away.

Her father held a pen and walked toward her from 15 feet away. "Tell me when you start to see two of them," I said. "Now," she said, about a dozen feet away, and at that moment I got an OD. I adjusted the cranials that came up.

We repeated this process, each time bringing the pen closer before she saw double, adjusting what came up each time, until he could bring the pen to the bridge of her nose without her seeing double. No more double vision.