Is your overall vision equivalent to or better than your better eye's vision?

Pretty much. This is how monovision or "blended vision" works in contact lens and LASIK patients. The challenge with these people (over about 43) is how to address both myopia (nearsightedness) and Presbyopia (age-related farsightedness).

If the eye set for distance (usually the dominant one) is 20/20 and the other one (set for near reading) is only 20/100, the two together will provide both useful distance and near vision at the same time -hopefully without even being aware there is a difference. The reverse is also true for near reading, but with the opposite eye's vision being better at near.

We do not see two different images from each eye, but rather a fused image providing the best optical features of each eye. This fusion trick occurs in the brain, not the eye!

_Written by J. Trevor Woodhams, M.D. - Chief of Surgery, Woodhams Eye Clinic