About: http://webisa.webdatacommons.org/446431902

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	Macular degeneration is a condition in which it affects old people particularly 50 years old in which there is a loss of vision in the center of visual field of the eye due to the damage to the retina.
http://www.w3.org/ns/prov#wasQuotedFrom	allhealthsite.com