CORRECTION OF PERIPHERAL DEFOCUS OF AN EYE AND CONTROL OF REFRACTIVE ERROR DEVELOPMENT
First Claim
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1. An ophthalmic lens series for correcting a peripheral defocus of an eye, said series comprising:
- a plurality of ophthalmic lenses forming a series;
each ophthalmic lens of the series having a central power level common to the series; and
each said ophthalmic lens of said series having one differential lens power level selected from a variety of differential lens power levels;
whereby a lens can be selected from the series to reduce the risk of over-correcting or under-correcting the peripheral defocus of a particular eye.
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Abstract
An ophthalmic lens series for reducing the progression of myopia through adequately correcting the peripheral retina, the series comprising more than one ophthalmic lens forming a series. Each ophthalmic lens of the series has a central power level common to the series. Each of the ophthalmic lenses of the series has one differential (peripheral minus central) power level selected from a variety of differential power levels. Providing a variety of differential power levels reduces the risk of over or under-correcting the peripheral retina of a particular eye.
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Citations
10 Claims
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1. An ophthalmic lens series for correcting a peripheral defocus of an eye, said series comprising:
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a plurality of ophthalmic lenses forming a series; each ophthalmic lens of the series having a central power level common to the series; and each said ophthalmic lens of said series having one differential lens power level selected from a variety of differential lens power levels; whereby a lens can be selected from the series to reduce the risk of over-correcting or under-correcting the peripheral defocus of a particular eye. - View Dependent Claims (2, 3, 4, 5)
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6. A method for correcting a peripheral defocus of an eye comprising:
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providing a series of ophthalmic lenses, wherein each lens in the series of ophthalmic lenses has a common central power and each lens in the series has one differential lens power level selected from a variety of differential lens power levels; selecting a first ophthalmic lens from the series of ophthalmic lenses and placing the first lens on an eye; evaluating visual performance of the eye having the first lens, wherein the evaluation determines overcorrection or undercorrection of the peripheral retina; and replacing, on the eye, the first lens with an alternative lens from the series having a higher differential lens power for an eye determined to be undercorrected by the first lens or a lens having a lower differential lens power for an eye determined to be overcorrected by the first lens. - View Dependent Claims (7, 8, 9, 10)
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Specification