Interfacial refraction accommodating lens (IRAL)
First Claim
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1. A method of correcting visual acuity, the method comprising the steps of:
- replacing a defective natural lens of an eye of a patient in need of such replacement with an interfacial refraction accommodating lens (IRAL);
permitting the IRAL to accommodate the patient'"'"'s need to change the focal point of the eye by changing the diopter strength and thus the focal point of the IRAL;
wherein the IRAL employs immiscible liquids that define an optical interface and includes an implant sidewall at a perimeter of the interface; and
wherein the curvature of the optical interface depends on properties, namely, surface tensions, of the liquids and the implant material and changes responsive to a force that deforms or displaces the sidewall at the perimeter of the interface.
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Abstract
This invention relates to intraocular lenses. More particularly, this invention relates to intraocular lenses that have the ability to alter the light refractive power in response to changes in the tension of the ciliary muscle or ciliary body of the eye or any other accommodative forces. Lenses of this invention are generally referred to as interfacial, i.e., lens properties being defined as the interface of two liquids having different refractive indices, refractive accommodating lenses (IRAL).
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10 Claims
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1. A method of correcting visual acuity, the method comprising the steps of:
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replacing a defective natural lens of an eye of a patient in need of such replacement with an interfacial refraction accommodating lens (IRAL); permitting the IRAL to accommodate the patient'"'"'s need to change the focal point of the eye by changing the diopter strength and thus the focal point of the IRAL; wherein the IRAL employs immiscible liquids that define an optical interface and includes an implant sidewall at a perimeter of the interface; and wherein the curvature of the optical interface depends on properties, namely, surface tensions, of the liquids and the implant material and changes responsive to a force that deforms or displaces the sidewall at the perimeter of the interface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification