The image received by the dominating eye is less precise since it is formed by {TAIL ~ the non spherical annular zone} 7 of {HEAD ~ lens} 1 
The image received by the dominating eye is less precise since it is formed by { TAIL ~ the non spherical annular zone } 7 of { HEAD ~ lens } 1
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD OTH