Corneal vitrification, methods and devices to produce corneal vitrification and methods of use thereof
The invention includes: a new composition of matter (a composite comprising a naturally occurring in vivo cornea in an in situ eye together with at least one volume of vitrified non-naturally occurring corneal stromal tissue formed within the naturally occurring corneal stromal tissue) wherein the vitrified tissue is modified in structure and properties from its naturally occurring condition into a non-naturally occurring glass-like condition with modifications including but not limited to increased eletastic modulus; methods for producing and using the new composition of matter for modifying cortical structure and properties, including but not limited to corneal optical aberrations; wound closure adhesion and transplant adhesion; and a photovitrification system for producing the new composition of matter comprising at least one photon source with controllable treatment parameters. A reverse template can be added to corneal vitrification systems to increase vitrification and modifications of structure and properties.
1. A non-naturally occurring material, produced by vitrifying corneal stromal material using optical energy, wherein the non-naturally occurring vitrified corneal stromal material has the following properties:
i) a biocompatible glass-like structure,
ii) an elastic modulus value of 0.33 to 33 MPa,
iii) a density value of 1.1 to 3.2 g/cm 3 , and
iv) a persistent vitrified condition at physiological temperature wherein the persistence is at least one month and the physiological temperature is the range of 30° C to 40° C.
2. The material of claim 1 , wherein the non-naturally occurring, vitrified corneal stromal material is configured to be located in a naturally occurring, non-vitrified corneal stromal material wherein a composite material of the vitrified material and the non-vitrified material has the following properties:
i) the vitrified material of the composite material composes no more than 10% by volume of the composite material; and
ii) the vitrified material has a spatial volume in which the largest dimension of the vitrified material extends by less than 10 mm into the non-vitrified material.
3. The material of claim 2 , wherein the non-naturally occurring, vitrified corneal stromal material is configured to be located in the naturally occurring, non-vitrified corneal material and wherein the such configured to be located non-naturally occurring, vitrified corneal stromal material has at least one of:
i) a spatial area being between 0.02 and 100 mm 2 and
ii) a volume being between 0.001 and 10 mm 3 .
4. The material of claim 3 , wherein the non-naturally occurring, vitrified corneal stromal material comprises spatially separated regions, having a spatial separation within the naturally occurring, non-vitrified corneal material of at least 0.1 mm.
5. The material of claim 3 , wherein the non-naturally occurring, vitrified corneal stromal material is located at depths between 0.03 and 0.3 mm relative to an anterior surface of the naturally occurring, non-vitrified corneal stromal material.
6. The material of claim 2 , wherein the non-naturally occurring, vitrified corneal stromal material has at least two of the following spatial properties:
i) a spatial area being between 0.02 and 100 mm 2 ,
ii) a volume being between 0.001 and 10 mm 3 ,
iii) a spatial separation within the naturally occurring, non-vitrified corneal material of at least 0.1 mm, and
iv) being located at depths between 0.03 and 0.3 mm relative to an anterior surface of the non-vitrified corneal stromal material.
7. The material of claim 2 , in which at least one of the vitrified corneal stromal material or the non-vitrified corneal stromal material is derived from a corneal stromal tissue.
8. The material of claim 1 , wherein the elastic modulus value of the non-naturally occurring, vitrified corneal stromal material is 0.33 to 33 MPa for of at least one of an axial modulus and a shear modulus.
9. The material of claims 8 , wherein the material has an elastic modulus value which is 1 to 33 MPa.
10. The material of claim 1 , wherein a stromal adhesion value of the non-naturally occurring, vitrified corneal stromal material is 0.08 to 0.8 MPa without a collagen denaturation or melting.
11. The material of claim 1 , wherein the material is used for at least one of the following applications:
i) vision;
ii) vision improvement;
iii) a compensation for at least one symptom of: at least one ophthalmic disorder, at least one ophthalmic disease; at least one ophthalmic condition; at least one ophthalmic injury, or any combination thereof;
iv) a treatment of at least one of: at least one ophthalmic disorder, at least one ophthalmic disease; at least one ophthalmic condition; at least one ophthalmic injury, or any combination thereof;
v) a stabilization of the treatment; and
vi) any combination thereof.
12. The material of claim 1 , wherein the material has the elastic modulus value which is 1 to 33 MPa.
13. The material of claim 1 , wherein the material is produced by localized photothermal heating at a heating rate between 5 degrees per second and 20,000 degrees per second for a heating time required to produce a maximum temperature between 50° C. and 100° C.