I find all of these visual effects to be disorienting... And superfluous at best. I was closing my eyes when switching apps for the first few days also. I'm disappointed Apple provided no way to disable the zoom animation - just like I would on a desktop OS, the first thing I tried to do was disable that option.
The parallax scrolling of the icons over the background when the phone is titled on the home screen is bizarre. I'm not sure what Apple intends there.
Yes, I felt a bit ill during the first day but I have since got used to it. However, I think it's mainly because I've subconsciously learnt to not pay attention during the animations.
