No, it's not a place you grow things. A "Visual Field" is the amount of central vision you have. Someone correct me if I'm wrong, but I believe we have 120 degrees in each eye normally, anything below 10 degrees in one eye, is legally blind (In Canada). A field vision test is one way of discovering R.P., and other eye defects.

To see an animated depiction of what it's like to have Retinitis PigmentosaClick on this link.(Opens in new window) You will need the Flash player to view this animation. See next link Get Flash here.(Opens in new window

To check your own "Visual Field" Follow this link.(Opens in new windowand follow the instructions.