The eyewear lens includes a plurality of {HEAD ~ projections} that define {TAIL ~ various pantoscopic angles} 
define
The eyewear lens includes a plurality of { HEAD ~ projections } that define { TAIL ~ various pantoscopic angles }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL