In a recent email from my friend Steve Andreas, he sent a link to an exercise created by Nelson Zink.
Zink is the author of the book, "The Structure of Delight" which I highly recommend. As such, I also recommend using the exercise as a way of enhancing your peripheral vision or photofocus.
http://www.navaching.com/hawkeen/nwalk.html
Good luck, and...
CommonSense
[This message has been edited by CommonSense (edited May 02, 2002).]