Correction of higher order aberrations in intraocular lenses
AssigneeNovartis AG
InventorsXin Hong, Mutlu Karakelle, Xiaoxiao Zhang
Life of this patent
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Abstract
In one aspect, the present invention provides a method of designing an intraocular lens (IOL) to address variations of at least one ocular parameter in a population of patient eyes. The method can include establishing at least one eye model in which the ocular parameter can be varied over a range exhibited by the population. The eye model can be employed to evaluate a plurality of IOL designs in correcting visual acuity for eyes in the patient population. An IOL design that provides a best fit for visual performance over at least a portion of the parameter range can then be selected.
Claims10
A method of modeling visual performance of an ophthalmic lens, comprising
- establishing a model eye that incorporates said ophthalmic lens,
- determining a modulation transfer function (MTF) at a retinal plane of said model eye,
- utilizing at least one MTF value corresponding to a low spatial frequency to evaluate a contrast sensitivity of said model eye.
A method of modeling a visual performance of an ophthalmic lens, comprising
- establishing a model eye that incorporates the ophthalmic lens,
- determining a modulation transfer function (MTF) at a retinal plane of the model eye, and
- utilizing at least one MTF value corresponding to a high spatial frequency to evaluate a visual acuity of said model eye.
Dependencies are inferred from the claim text.