Treatment of myopia
View Patent ↗The present invention relates to altering the physical and/or chemical properties of at least part of at least one tissue in the eye. In a specific embodiment, it relates to the treatment and/or prevention of myopia. An activating energy source is utilized to photopolymerize or crosslink molecules in the sclera, thereby increasing the strength of the tissue. The individual is administered a crosslinking reagent or photopolymerizable molecule that becomes associated with the membrane, which is then precisely exposed to an energy source, such as light or ultrasound.
1. A method of treating axial myopia in an individual in need thereof, comprising administering to the sclera of the individual a photopolymerizable compound selected from the group consisting of polyethylene glycol (PEG), a protein, or a polysaccharide; and a photo initiator, and exposing light on the photopolymerizable compound to form a covalent bond with another molecule of the compound, with a molecule of the sclera, or with both.
2. The method of claim 1 , wherein the polyethylene glycol (PEG) further comprises a moiety selected from the group consisting of an acrylate, diacrylate, triacrylate, methacrylate, dimethacrylate, trimethacrylate, or vinyl group.
3. The method of claim 1 , wherein the polysaccharide comprises poly(hyaluronic acid), dermatansulfate, chondroitinsulfate or keratansulfate.
4. The method of claim 1 , wherein the protein is elastin.
5. The method of claim 4 , wherein the elastin is native elastin or an engineered elastin.
6. The method of claim 5 , wherein the engineered elastin has therefor one or more natural amino acid substitutions suitable for polymerization.
7. The method of claim 5 , wherein the engineered elastin has therefore one or more non-natural amino acids comprising one or more chemical groups that are appropriate for polymerization, for photoinitiation, or both.
8. The method of claim 1 , wherein the exposure to light is directed to a region of the sclera identified by diagnostic imaging.
9. The method of claim 1 , wherein the exposure to light is directed to a region of the sclera identified by ultrasound imaging, OCT imaging, OCT Doppler imaging, or magnetic resonance imaging (MRI).
10. The method of claim 1 , wherein the compound is administered to the sclera by retrobulbar injection.