Patent ID: 9575334
Date: 2017-02-21
CPC Classifications: A61B,A61F,G02C

Claim:
1. A lens for an eye, the lens having an optical axis and an aberration profile about its optical axis, the aberration profile: having a focal distance; and including higher order aberrations having at least one of a primary spherical aberration component, a secondary spherical aberration component, and a tertiary spherical aberration component, wherein the aberration profile provides, for a model eye with no aberrations and an on-axis length equal to the focal distance: wherein said RIQ is Visual Strehl Ratio measured along the optical axis for at least one pupil diameter in the range 3 mm to 6 mm, over a spatial frequency range of 0 to 30 cycles/degree inclusive and at a wavelength selected from within the range 540 nm to 590 nm inclusive.