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APODIZED HYBRID DIFFRACTIVE-REFRACTIVE IOL FOR PSEUDO-ACCOMMODATION
专利权人:
NOVARTIS AG
发明人:
DAS, KAMAL K.,KARAKELLE, MUTLU
申请号:
EP13743279
公开号:
EP2773288A4
申请日:
2013.01.28
申请国别(地区):
EP
年份:
2015
代理人:
摘要:
In certain embodiments, an ophthalmic lens comprises an optic. The optic has an optical axis and surfaces comprising an anterior surface and a posterior surface. At least one of the surfaces has an inner refractive region and a refractive-diffractive structure disposed outwardly from the inner refractive region in a direction away from the optical axis. The inner refractive region is adapted to contribute refractively to a distance focus optical power. The refractive-diffractive structure comprises one or more diffractive regions and one or more refractive regions. A diffractive region is adapted to contribute diffractively to a multi-zone optical power, and a refractive region is adapted to contribute refractively to the distance focus optical power.
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