Indeed, I too found the zooming and weird colors most disconcerting and VERY ANNOYING. Albeit I could have forced myself to use it, but I would have had an inner hatred knowing there was an easy fix but conciously ignored by the iOS7 creators.
My solution was simple, move on.
I already and an Android tablet, so moving to Galaxy S4 was an easy decision, as our cell contract was up for renewal. I'll never look back.
I'm here now because the forum diligently send me updates on this topic, and did note what appears to be similar contexual wording in complaints of physical sickness.
My son & wife, on the same family plan, with iPhone 5's also disabled as much of the screen action, but are resigned, pending some resolution. However, today, for Sunday lunch, he did admire my wise decision after trying the Android Galaxy.
Do listen to the Bill Moyers program with: Sherry Turkle on Being Alone Together