Title:
OPTIMAL IOL SHAPE FACTOR FOR HUMAN EYE
Document Type and Number:
Japanese Patent JP2014131742
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an improved IOL, hardly having adverse effect of aberration resulting from mismatch of an embedded IOL to a cornea and/or inherent aberration of the eye on the optical performance of a lens and attaining more reliable optical performance.SOLUTION: The present invention comprises an optic lens with an anterior surface and a posterior surface, which presents a shape factor (defined as a ratio of the sum of the anterior and posterior curvatures to the difference of the two curvatures) in a range of about -0.5 to about 4. In a related aspect, the shape factor of the optic lens lies in a range of about 0 to about 2. The shape factors effect a plurality of different lens shapes, such as concave-convex, plano-convex, and plano-concave.
Inventors:
HONG XIN
VAN NOY STEPHEN J
XIE JIHONG
STANLEY DAN
KARAKELLE MUTLU
SIMPSON MICHAEL J
ZHANG XIAOXIAO
VAN NOY STEPHEN J
XIE JIHONG
STANLEY DAN
KARAKELLE MUTLU
SIMPSON MICHAEL J
ZHANG XIAOXIAO
Application Number:
JP2013273270A
Publication Date:
July 17, 2014
Filing Date:
December 27, 2013
Export Citation:
Assignee:
ALCON INC
International Classes:
A61F2/16; A61L27/00
Domestic Patent References:
| JPH02198547A | 1990-08-07 | |||
| JPH04126144A | 1992-04-27 | |||
| JPH07508359A | 1995-09-14 | |||
| JP2003523261A | 2003-08-05 | |||
| JPH02198547A | 1990-08-07 | |||
| JPH04126144A | 1992-04-27 | |||
| JP2003523261A | 2003-08-05 | |||
| JPH07508359A | 1995-09-14 |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito
Tetsuro Shimada
Shinji Mitsuhashi
Koichi Ito