My vision problems WERE connected to my headaches.

Look for an optometrist who does Vision Efficiency Evaluations. You can get referrals at these websites: http://www.braininjuries.org or http://www.nora.cc

A medical eye exam will most likely not show the true extent of the visual difficulties you are having; only a VEE will.

Did you ask the physiatrist about vestibular therapy due to your balance problems? You may have to push for physical and/or occupational therapy. I did, and it's been one of the most helpful things I've done.