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<http://webisa.webdatacommons.org/110106472>	<http://www.w3.org/ns/prov#value>	"Though most do not cause vision loss, some types can progress to severe loss of sight or total blindness." .
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<http://webisa.webdatacommons.org/110106472>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<netplaces.com> .