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OPHTHALMIC APPARATUS WITH CORRECTIVE MERIDIANS HAVING EXTENDED TOLERANCE BAND
专利权人:
ABBOTT MEDICAL OPTICS INC.
发明人:
Huawei Zhao
申请号:
US15467963
公开号:
US20170273781A1
申请日:
2017.03.23
申请国别(地区):
US
年份:
2017
代理人:
摘要:
The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) and associated method for their design and use. In an embodiment, an ophthalmic apparatus (e.g., a toric lens) includes one or more angularly-varying phase members comprising a diffractive or refractive structure, each varying the depths of focus of the apparatus so as to provide an extended tolerance to misalignment of the apparatus when implanted in an eye. That is, the ophthalmic apparatus establishes an extended band of operational meridian over the intended correction meridian.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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