Funny you mention the eyesight issue, Kevin. I just read this note about Carlos Beltran, clipped from an AP article. Might be just what the doctor ordered:
>> In the most unusual clause of the deal, the Mets agreed to lease for Beltran an ocular enhancer machine, a device that throws colored, numbered tennis balls to batters at 150 mph or faster.
I've had bifocals for some time. But I only use them for reading. I think regular glasses will do. I use contacts since they are so much easier than wiping glasses off all the time.