<http://webisa.webdatacommons.org/prov/265488603> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/366196416> . <http://webisa.webdatacommons.org/366196416> <http://www.w3.org/ns/prov#value> "Among them are 3% to 5% with persistent symptoms that require specialists such as an ophthalmologist to deal with vision problems." . <http://webisa.webdatacommons.org/366196416> <http://www.w3.org/ns/prov#wasQuotedFrom> <blogspot.com> . <http://webisa.webdatacommons.org/366196416> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> .