Beware of any eyeball scout who literally has defective eyeballs. Did you know that you can get an ulcer in your eyeball? Who knew that watching the A's bullpen was so stressful? Apparently bacteria can sneak under a contact lens, an infection can lead to an ulcer, and voila: antibiotic eyedrops and no contact lenses for two weeks.
Here's the problem. When you don't wear your glasses except first thing in the morning, you tend to get a bit lazy about keeping the prescription updated. Having last gotten a new pair just in time to go vote for Thomas Jefferson, last week I pretty much flunked my eye exam while wearing my glasses.