Eye Care Information

Hi!

I recently visited the eye doctor, and for the first time in my life--not a clean bill of health (which I kind of expected due to headaches and vision trouble--mainly seeing my computer screen). The doctor thought the problem might be eyestrain related to computer use and also identified a convergence insufficiency (my eyes apparently tend to turn out a little).

The doctor gave me two prescriptions--one for reading glasses and one for anti-fatigue lenses. He told me to try the reading glasses first, then the anti-fatigue if they don't seem to help. Here's what I'm confused about: both prescriptions have the same prism correction, but the reading glasses prescription has +0.50 on both left and right, while the anti-fatigue prescription has -0.25 left and plano right.

Is it common for an eye doctor to suggest trying two completely different things? Also, is it weird that the diopters would be different on the two prescriptions?

Thanks!