About: http://webisa.webdatacommons.org/408377962

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	defining a target or aimed astigmatism including a magnitude and axis, the axis being an angle presented in a 0??? to 180??? range;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com