I had written an article some time ago on the issue of "depth perception in aging eyes" (see previous BLOG entry - http://activerain.com/blogsview/55174/Depth-Perception-in-Aging-Eyes).
As I stood in the pharmacy section of the department store yesterday, trying to find what I was looking for ... I realized how bad my eyes are getting ! I've worn glasses for many years ... for driving, and oh just being able to find stuff (like product on a shelf !!). But lo and behold, once I find it I can't read it. Ugh ... this could explain the recent headaches.