Reading glasses are out. What's in: a surgical procedure called conductive keratoplasty, or CK, to treat presbyopia, the all-but-inevitable age-related condition that makes it difficult to read fine print.

The operation takes minutes and requires an eyedropper of local anesthetic. So far 100,000 have had it.

Downside: Your eyes keep aging. The surgery's benefit will disappear within five to 10 years, and the procedure isn't typically covered by insurance.

Maybe reading glasses aren't so bad after all.