About: http://webisa.webdatacommons.org/19994255

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	In attempting to resolve the vergence???accommodation conflict, the viewer can experience symptoms including eyestrain, blurry vision, eye tiredness, and headache.
http://www.w3.org/ns/prov#wasQuotedFrom	arvojournals.org