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Contra-Aspheric Toric Ophthalmic Lens
专利权人:
VALDEMAR PORTNEY
发明人:
VALDEMAR PORTNEY
申请号:
US13312529
公开号:
US20120147321A1
申请日:
2011.12.06
申请国别(地区):
US
年份:
2012
代理人:
摘要:
An ophthalmic toric lens to be worn on an eye or implanted inside of an eye, the lens includes an anterior surface, a posterior surface, and a toric shape formed into one of the anterior and posterior surfaces, the toric shape comprising two non-spherical principle meridians each having a region within an annular area of optical zone and the region of one principle meridian being configured for producing a longitudinal ray aberration of a different sign than a longitudinal ray aberration sign from the region of another principle meridian.
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