초록 ▼

The invention relates to novel optical elements having improved UV protection. The optical element comprises a light adjustable optical element with a UV absorbent layer applied to at least one surface of the optical element. The invention is particularly useful in light adjustable intraocular lense

The invention relates to novel optical elements having improved UV protection. The optical element comprises a light adjustable optical element with a UV absorbent layer applied to at least one surface of the optical element. The invention is particularly useful in light adjustable intraocular lenses.

대표청구항 ▼

1. An intraocular lens comprising: an adjustable optical element wherein the optical properties and/or the physical properties of the optical element are adjustable by exposure to ultraviolet light,an ultraviolet blocking layer that is co-extensive with at least one surface of the lens, the ultravio

1. An intraocular lens comprising: an adjustable optical element wherein the optical properties and/or the physical properties of the optical element are adjustable by exposure to ultraviolet light,an ultraviolet blocking layer that is co-extensive with at least one surface of the lens, the ultraviolet blocking layer having a thickness of from about 50 to about 250 μm,wherein the ultraviolet blocking layer is a polymeric layer further comprising a UV absorber and a photoinitiator,wherein the ratio of photoinitiator to UV absorber is in a range of approximately 1:1 to 25:1,wherein the ultraviolet blocking layer reduces the transmission of ultraviolet light through the lens,wherein the UV absorber has the formula: 2. The lens of claim 1 wherein the transmission of ultraviolet light through said lens is reduced by at least about 85%. 3. The lens of claim 1 wherein the blocking layer further comprises a blue light blocker. 4. The lens of claim 1 wherein the blocker layer further comprises an ultraviolet light absorbing component. 5. The lens of claim 1 wherein the ultraviolet blocking layer further comprises a ultraviolet light absorbing component linked to a short polymer chain. 6. The lens of claim 5 wherein a short polymer chain comprises from about 2 to about 28 monomers. 7. The lens of claim 1 wherein the ultraviolet blocking layer further comprises benzophenone. 8. A light adjustable intraocular optical element comprising: an ultraviolet blocking layer that is co-extensive with at least one surface of the optical element, the ultraviolet blocking layer having a thickness of from about 0.001 to about 250 μm, wherein the ultraviolet blocking layer is a polymeric layer further comprising a UV absorber and a photoinitiator,wherein ultraviolet blocking layer reduces the transmission of ultraviolet light through the lens,wherein the ratio of photoinitiator to UV absorber is between approximately 1:1 to 25:1,wherein the optical properties and/or the physical properties of the optical element are adjustable by exposure to ultraviolet light,wherein the UV absorber has the formula: 9. The optical element of claim 8 wherein the transmission of ultraviolet light through said optical element is reduced by at least about 85%. 10. The optical element of claim 8 wherein the thickness of said blocking layer is about 50 μm. 11. The optical element of claim 8 wherein the blocking layer further comprises a blue light blocker. 12. The optical element of claim 8 wherein the ultraviolet blocking layer further comprises a ultraviolet light absorbing component linked to a short polymer chain. 13. The optical element of claim 12 wherein a short polymer chain comprises from about 2 to about 28 monomers. 14. The optical element of claim 8 wherein the ultraviolet blocking layer further comprises benzophenone. 15. An intraocular lens comprising: a blue light and an ultraviolet light blocking layer, said blocking layer having a thickness of from about 0.001 to about 250 μm,said blue light and ultraviolet light blocking layer comprising a UV absorber and a photoinitiator,wherein the ratio of the photoinitiator of the UV absorber is between approximately 1:1 to about 25:1,an adjustable optical element wherein the optical properties and/or the physical properties of the optical element are adjustable by exposure to ultraviolet light,wherein the UV absorber has the formula: and wherein the blue light blocking layer reduces the transmission of blue light through the lens. 16. The optical element of claim 15 wherein the blue light blocking layer is a yellow dye.