Optical Material and Method for Modifying the Refractive Index
AssigneeUniversity of Rochester
InventorsWayne H. Knox, Li Ding, Jay F. Kunzler, Dharmendra Jani
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Abstract
An optical device comprising an optical hydrogel with select regions that have been irradiated with laser light having a pulse energy from 0.01 nJ to 50 nJ and a wavelength from 600 nm to 900 nm. The irradiated regions are characterized by a positive change in refractive index of from 0.01 to 0.06, and exhibit little or no scattering loss. The optical hydrogel is prepared with a hydrophilic monomer.
Claims20
An optical device comprising an optical hydrogel with select regions that have been irradiated with laser light having a pulse energy from 0.01 nJ to 50 nJ and a wavelength from 600 nm to 900 nm, wherein the irradiated regions are characterized by a positive change in refractive index of from 0.01 to 0.06, and exhibit little or no scattering loss, and the optical hydrogel is prepared with a hydrophilic monomer.
A method of changing the index of refraction of an optical hydrogel that is a component of an optical device implanted in the eye of a patient for vision correction, the method comprising:
- providing a physician with a laser system to irradiate select regions of the optical hydrogel following implantation of the optical device into the eye of the patient, the laser system comprising a laser having a pulse energy from 0.01 nJ to 50 nJ and a light wavelength from 600 nm to 900 nm;
- wherein the irradiated regions are formed by scanning the laser light in an X-Y plane perpendicular to the laser beam, the irradiated regions characterized by a positive change in refractive index of from 0.01 to 0.06, and exhibit little or no scattering loss.
Dependencies are inferred from the claim text.