PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention is particularly useful for correcting hyperopic conditions with a cylindrical component of curvature (i.e., astigmatism), while also smoothing the transition zone between the optical correction zone and the remainder of the cornea.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com