Adaptive optic lens system and method of use
View Patent ↗An lens for correcting human vision, for example an IOL, contact lens or corneal inlay or onlay, that carries and interior phase or layer comprising a pattern of individual transparent adaptive displacement structures. In one embodiment, the displacement structures are actuated by a shape memory polymer (SMP) material or other polymer that is adjustable in shape in response to applied energy. The SMP can be designed to be selectively adjustable in volumetric dimension, modulus of elasticity and/or permeability. The adaptive optic means of the invention can be used to create highly localized surface corrections in the lens to correct higher order aberrations—which types of surfaces cannot be fabricated into and IOL and then implanted. The system of displacement structures also can provide spherical corrections in the lens.
1. A method of making an ophthalmic lens comprising the steps of sealably assembling anterior and posterior lens body portions about an interior phase that carries and a fixed pattern of actuatable displacement structures for deforming the lens surface to alter an optical parameter of the lens, the interior phase further comprising an index-matched fluid layer about the displacement structures, wherein the displacement structures define a scale that allows for correction of higher order aberrations.
2. A lens for spherical or higher order aberration correction in a human vision treatment, comprising a lens body defining an optical axis, a lens having an interior phase extending transverse to the optical axis that carries and a fixed pattern of actuatable displacement structures for deforming a lens surface to alter an optical parameter of the lens, wherein the displacement structures define a scale that allows for correcting higher order aberrations.
3. A lens as in claim 2 , wherein the one lens surface is resilient to permit a shape change in response to actuation of the displacement structure.
4. A lens as in claim 2 , wherein both anterior and posterior lens surfaces are resilient.
5. A lens as in claim 2 wherein the displacement structures are arranged over in concentric circles in the interior phase.
6. A lens as in claim 2 , wherein the displacement structures changes a selected functional parameter in response to energy applied to a cooperating lens component from a light source, the functional parameter selected from the class consisting of volume, shape, porosity, density, internal pressure and interior fluid pressure.
7. A lens as in claim 6 , wherein the cooperating lens component is a photo-modifiable polymer.
8. A lens as in claim 6 , wherein the cooperating lens component is a hydrogel which swells or contracts.
9. A lens as in claim 6 , wherein the displacement structure is alterable in volume in response to the applied energy to media adjacent said fluid.
10. A lens as in claim 6 wherein the cooperating lens component is stably compressed or extended to store energy which is released in response to the applied energy.
11. A lens as in claim 6 , where cooperating lens component carries a chromophore which selectively absorbs a predetermined light wavelength.
12. A method for adjusting an optical characteristic of vision correction lens, said method comprising applying energy from a remote energy source to a cooperating lens component wherein the cooperating lens component alters a parameter of a displacement element in the lens body of the lens, wherein the displacement element adjusts an optical characteristic of the lens at a plurality of locations sufficient to correct higher order aberrations.
13. A method as in claim 12 , wherein the applying energy step utilizes light energy.
14. A method as in claim 12 , wherein the applying energy step scans a laser beam to irradiate the cooperating lens component.
15. A method as in claim 12 , wherein the altering step alters a volume parameter of a displacement element.
16. A method as in claim 12 , wherein the altering step alters a shape parameter of a displacement element.
17. A method as in claim 12 , wherein the altering step alters a porosity parameter of a displacement element.
18. A method as in claim 12 , wherein the altering step alters a density parameter of a displacement element.
19. A method as in claim 12 , wherein the altering step alters an internal pressure parameter of a displacement element.
20. A method as in claim 12 , wherein the altering step alters an interior fluid pressure parameter within a displacement element.