A personal note on vision: I would agree with the last post on the affect pregnancy and lactation have on the cornea. I wore contact lenses successfully for 15 years until my pregnancies. With each successive pregnancy my vision became more nearsighted, more astigmatic, and my eyes became dryer. Or maybe it was because I was just getting older. After the pregnancies, I stopped wearing contacts for several months because I felt that they impaired my ability to drop off to a quick nap while breastfeeding if I had to get up to take off my contacts! I was not sleeping too much at night, either, which did not help my eyes. My eyes are now so dry that I can only tolerate contacts for about four hours at a time. But maybe it is this LA smog.... Debbie Rabin, OTR, CLC Los Angeles, CA, where today there was no smog and it was in the low 80's.