A method of producing an image for viewing by an eye in {TAIL ~ an image field} with a portable head mounted display, comprising {HEAD ~ the steps} of: 
A method of producing an image for viewing by an eye in { TAIL ~ an image field } with a portable head mounted display , comprising { HEAD ~ the steps } of :
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH