Radioluminescent Phototherapy Eye Device
AssigneeCalifornia Institute of Technology
InventorsYu-Chong Tai, Colin A Cook
Life of this patent
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Abstract
Embodiments of the present disclosure are directed to a phototherapy eye device. In an example, the phototherapy eye device includes a number of radioluminescent light sources and an anchor. Each radioluminescent light source includes an interior chamber coated with phosphor material, such as zinc sulfide, and containing a radioisotope material, such as gaseous tritium. The volume, shape, phosphor material, and radioisotope material are selected for emission of light at a particular wavelength and delivering a particular irradiance on the retina (when implanted in an eyeball). The wavelength is in the range of 400 to 600 nm and the irradiance is substantially 109 to 1011 photons per second per cm2.
Claims27
An implantable phototherapy eye device providing long term temporally invariant illumination to a retina of an eyeball, the implantable phototherapy eye device comprising:
- a biocompatible radioluminescent light source implantable inside an eyeball, wherein:
- the biocompatible radioluminescent light source comprises one or more walls that form a chamber,
- a phosphor material coats at least one of the one or more walls,
- a radioisotope material is within the chamber, and
- an exterior volume of the biocompatible radioluminescent light source is in the range of 1 mm3 to 1000 mm3;
- and
- an anchor coupled with the biocompatible radioluminescent light source and comprising an anchoring surface that is mountable to a surface of an eye tissue.
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A wearable phototherapeutic eye contact lens comprising:
- a contact lens having a first chamber;
- and
- a radioluminescent light source comprising one or more walls that form a second chamber, wherein:
- the radioluminescent light source is in the first chamber of the lens,
- phosphor material coats at least one of the one or more walls, and
- radioisotope material is within the second chamber.
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Dependencies are inferred from the claim text.