About: http://webisa.webdatacommons.org/2574882

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	More recently the use of a soft, biocompatible material, such as silicone, to manufacture the lenses is more common.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au