About: http://webisa.webdatacommons.org/319643274

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	Ask if he/she has experienced any changes in his vision, especially night vision.
http://www.w3.org/ns/prov#wasQuotedFrom	nurseslearning.com