About: http://webisa.webdatacommons.org/390032633

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	Astigmatism is a type of refractive error, meaning that the eye does not bend light coming into it to focus on the correct place on the retina.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeekhealth.com