Multitask vision architecture for refractive vision corrections
AssigneeAdvanced Vision Engineering, inc.
InventorJunzhong Liang
Life of this patent
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Abstract
A multitask vision architecture is constructed based on multitask vision-metrics derived from wave aberration of the eye. The multitask vision metrics include at least one of the followings: vision clarity of eye that measures optical quality of an eye against those in a cohort of eyes with normal acuity, aberration-induced vision symptoms, retinal image quality for best vision and night vision, and retinal image quality for a range of focus depth. The multitask vision architectures is applied for determining a wavefront shape for an optimized vision correction, for specifying excessive aberrations in an eye, and for specifying quality of a vision product.
Claims32
A method for determining an optimized wavefront correction, the method comprising:
- obtaining at least one wave aberration of an eye;
- selecting at least one performance target based on optical quality of a cohort of eyes with normal visual acuity;
- determining a post-correctional wavefront by altering aberrations in the eye to meet the selected performance target;
- determining an optimized wavefront correction from the difference between the obtained wave aberration of the eye and the determined post-correctional wavefront that meets the selected performance target.
A method for specifying quality of a vision product including lenses and refractive surgeries, the method comprising:
- obtaining at least one wave aberration of an eye with a vision product;
- calculating at least one image quality parameter from the obtained wave aberration;
- specifying quality of a vision product by a relative scare based on the calculated image quality parameter from the obtained wave aberration of the eye and the same parameter obtained from a cohort of eyes with normal visual acuity.
A method for specifying quality of a correction lens, the method comprising:
- obtaining at least one wave aberration of an eye;
- measuring at least one wavefront of an correction lens from a wavefront lensometer;
- determining a post-correctional wavefront by combining the obtained wave aberration of the eye and the measured wavefront of the correction lens;
- calculating at least one image quality parameter from the post-correctional wavefront;
- specifying quality of a correction lens in a relative score based on optical quality of a cohort of eyes with normal visual acuity.
Dependencies are inferred from the claim text.