About: http://webisa.webdatacommons.org/56846683

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	Present lenses rely on using materials which are permeable to gases such as oxygen and carbon dioxide, since the cornea is avascular and acquires oxygen directly from the atmosphere in order to respire.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au