System for corneal cross-linking and correcting vision by using LED contact lens and eye dye
US12403326B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 11, 2020 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | Jan 5, 2043 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2005/0663
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a system for corneal crosslinking of injured corneas, treating keratoconus, or correcting vision, the system comprising: a hyaluronic acid-dye conjugate; and a contact lens including an LED light source.In the present invention, a dye is activated by receiving light irradiated from the LED light source of the contact lens so as to generate radicals, thereby generating a covalent bond between amino acid radicals of corneal collagen, and strengthening a collagen layer. In the present invention, the hyaluronic acid-dye conjugate, in which hyaluronic acid is bound to the dye, is used to improve penetration of the dye in the cornea, and the contact lens is used together with the hyaluronic acid-dye conjugate to further improve the penetration of the dye. In addition, the structure of the lens which presses the center of the cornea deforms the shape of the cornea, thereby having a vision correction effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.