About: http://webisa.webdatacommons.org/437370258

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	It deals with the tendency of light to become distorted as it passes through different media such as air, water, or living tissue.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com