When I PhotoRead I quickly get myself into state, then enter the PhotoFocus state. I make sure that I can see a good sized blip page.
During the actual PhotoReading process, I stare directly through the center of the book, but I also make a point of recognizing the four corners of the book with my peripheral vision while I'm PhotoReading.
This not only expands my field of vision, but it helps to control the thoughts in my head. Whenever I sense myself wandering (thinking about the future, wondering what's next on my to-do list), I just focus my peripheral attention on the four corners. Seems to work for me.
