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US 12,226,647 B2Granted
Method and apparatus for treating refractive error of the eye
AssigneeAcucela Inc.
InventorsRyo Kubota, Amitava Gupta
Life of this patent
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Abstract
A source of light energy such as a source of violet light energy is coupled to a structure configured to contact the eye. The light source and structure are arranged to provide therapeutic amounts of violet light energy to the eye in order to inhibit the progression of refractive error such as myopia. The light source can be configured in many ways and may comprise a radioisotope and a phosphorescent material. The structure configured to contact the eye may comprise a contact lens or an implant.
Claims15
An apparatus to treat refractive error of an eye, comprising:
- a first structure configured to contact an anterior surface of the eye, the first structure comprising a refractive lens shaped to correct a refractive error of the eye;
- a light source coupled to the first structure;
- a second structure on the first structure to focus a light energy from the light source toward a retina of the eye and comprising a refractive, diffractive, or reflective structure;
- and
- a third structure to direct light to the retina of the eye, the third structure configured to be located more anterior to the anterior surface of the eye than the light source and comprising a reflective structure;
- wherein the light source and the second structure are configured to concentrate the light energy on the retina of the eye with an irradiance on the retina within a range from 0.1 mW/cm2 to 5 mW/cm2 to treat the refractive error of the eye.
3 more elements
Dependencies are inferred from the claim text.