About: http://webisa.webdatacommons.org/216190577

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	The anterior convex surface of the lens is thus formed by the mold surface, and the posterior, concave surface of the lens is formed as a result of centrifugal forces, surface tension of the polymerizing mixture, and other factors.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au