About: http://webisa.webdatacommons.org/12305615

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	In terms of what would be a tolerable amount of spherical defocus for a premium lens, for most multifocal lenses and accommodating lenses the best results are when the patient has a sphere he is ??0.5 D of plano.
http://www.w3.org/ns/prov#wasQuotedFrom	reviewofophthalmology.com