The changing radius of curvature from relatively flat to progressively steeper in {HEAD ~ the horizontal meridian} allows the aspheric plano lens of {TAIL ~ this invention} to sufficiently wrap around the temple area as schematically shown in FIG 10 
The changing radius of curvature from relatively flat to progressively steeper in { HEAD ~ the horizontal meridian } allows the aspheric plano lens of { TAIL ~ this invention } to sufficiently wrap around the temple area as schematically shown in FIG 10
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH