Non-invasive refractive treatment using nanoparticles
Embodiments of this invention generally relate to systems and methods for optical treatment and more particularly to non-invasive refractive treatment method based on sub wavelength particle implantation. In an embodiment, a method for optical treatment identifies an optical aberration of an eye, determines a dopant delivery device configuration in response to the optical aberration of the eye, wherein the determined dopant delivery device is configured to impose a desired correction to the eye to mitigate the identified optical aberration of the eye by applying a doping pattern to the eye so as to locally change a refractive index of the eye.
1. A system for optical treatment of an eye, the system comprising:
a delivery device; and
dopant operably coupled with the delivery device so as to be deliverable from the delivery device into the eye in a dopant pattern, wherein the dopant comprises a plurality of nanoparticles, wherein each nanoparticle is either a metallic nanoparticle producing surface plasmon effects, or a nanoparticle formed of an inorganic polymer with an inorganic transparent material embedded in the inorganic polymer;
wherein the delivery device is configurable to deliver the dopant into the eye so that the dopant pattern locally changes a refractive index of the eye so as to impose a desired correction to the eye to mitigate an optical aberration of the eye.
2. The system of claim 1 , wherein the optical aberration of the eye comprises one of a myopia, a hyperopia, and a regular astigmatism.
3. The system of claim 1 , wherein the optical aberration of the eye comprises a higher order aberration.
4. The system of claim 1 , wherein the correction identifies changes to the index of refraction in the cornea of the eye.
5. The system of claim 1 , wherein the delivery device includes a contact lens configured for placement on a portion of the eye, the contact lens having dopant carrier which releasably carries the dopant.
6. The system of claim 5 , wherein the dopant is released when activated, and wherein the activation of the dopant includes change in shape, composition, and/or properties of the dopant and/or the dopant carrier.
7. The system of claim 5 , wherein the dopant carried by the dopant carrier on a portion of the contact lens is released when the portion of the contact lens is irradiated.
8. The system of claim 5 , wherein the dopant located on portions of the contact lens is configured to diffuse into the cornea.
9. The system of claim 5 , wherein the dopant is configured to implant in the corneal stroma.
10. The system of claim 5 , wherein the dopant is uniformly distributed throughout the contact lens.
11. The system of claim 5 , wherein the dopant is non-uniformly distributed throughout the contact lens.
12. The system of claim 5 , wherein the contact lens comprises an orienting feature configured to orient the contact lens on the eye.
13. The system of claim 1 , wherein the inorganic transparent material is ZrO 2 .
14. The system of claim 1 , wherein the nanoparticles have a refractive index higher than a refractive index of a cornea of the eye.