Fluid for accommodating intraocular lenses
View Patent ↗Fluids incorporated into intraocular lenses and their methods of use. In some embodiments the fluids are silicone oils, and in some embodiments they are used in accommodating intraocular lenses.
1. An accommodating intraocular lens, comprising:
an optic portion adapted to refract light onto a retina, the optic portion comprising a bulk polymeric material; and
a silicone oil disposed within the optic portion, wherein the silicone oil has a polydispersity index less than about 1.5.
2. The accommodating intraocular lens of claim 1 , wherein the silicone oil has an index of refraction between about 1.47 and about 1.49.
3. The silicone oil of claim 1 wherein the silicone oil comprises diphenyl siloxane and dimethyl siloxane.
4. The silicone oil of claim 3 wherein the silicone oil comprises about 20% diphenyl siloxane and about 80% dimethyl siloxane.
5. The silicone oil of claim 1 wherein the silicone oil was purified using supercritical CO 2 extraction.
6. The silicone oil of claim 1 wherein the silicone oil has a mean molecular weight number average of between about 5000 Daltons to about 6500 Daltons.
7. The silicone oil of claim 1 wherein the viscosity of the oil is less than about 1000 cSt at about 25° C.
8. The silicone oil of claim 1 wherein the silicone oil has been purified such that there are no more than 50 ppm of any component that has a molecular weight of about 1000 Daltons or less.
9. An accommodating intraocular lens, comprising:
a peripheral portion adapted to engage a portion of a patient's eye, wherein the peripheral portion comprises a bulk polymeric material; and
a silicone oil disposed within the peripheral portion, wherein the silicone oil has a polydispersity index less than about 1.5.
10. The accommodating intraocular lens of claim 9 , wherein the silicone oil has an index of refraction between about 1.47 and about 1.49.
11. The silicone oil of claim 9 wherein the silicone oil comprises diphenyl siloxane and dimethyl siloxane.
12. The silicone oil of claim 11 wherein the silicone oil comprises about 20% diphenyl siloxane and about 80% dimethyl siloxane.
13. The silicone oil of claim 9 wherein the silicone oil was purified using supercritical CO 2 extraction.
14. The silicone oil of claim 9 wherein the silicone oil has a mean molecular weight number average of between about 5000 Daltons to about 6500 Daltons.
15. The silicone oil of claim 9 wherein the viscosity of the oil is less than about 1000 cSt at about 25° C.
16. The silicone oil of claim 9 wherein the silicone oil has been purified such that there are no more than 50 ppm of any component that has a molecular weight of about 1000 Daltons or less.
17. An accommodating intraocular lens, comprising:
a bulk polymeric material; and
a silicone oil that has a polydispersity index less than about 1.5, wherein the silicone oil has a mean molecular weight number average of between about 5000 Daltons to about 6500 Daltons.
18. The accommodating intraocular lens of claim 17 further comprising an optic portion adapted to refract light onto a patient's retina, wherein the optic portion comprises the bulk polymeric material, and wherein the silicone oil is disposed within the optic portion.
19. The accommodating intraocular lens of claim 17 further comprising a peripheral portion adapted to engage a portion of a patient's eye, wherein the peripheral portion comprises the bulk polymeric material, and wherein the silicone oil is disposed within the peripheral portion.