Unlike {HEAD ~ prior art composite lenses}, the ophthalmic lens can be produced conveniently using an insert molding process, which is a modified cast molding or {TAIL ~ double side molding process} 
Unlike { HEAD ~ prior art composite lenses } , the ophthalmic lens can be produced conveniently using an insert molding process , which is a modified cast molding or { TAIL ~ double side molding process }
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