About: http://webisa.webdatacommons.org/81881191

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	In U.S. Pat. No. 5,391,202, the positive lens projects anteriorly from the anterior face of the body member which is preferably a soft lens constructed from a material such as a silicone.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com