Methods and apparatus for presbyopia correction using ultraviolet and infrared lasers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-019/00
A61B-018/20
출원번호
US-0002929
(2004-12-02)
등록번호
US-7275545
(2007-10-02)
발명자
/ 주소
Lin,Jui Teng
출원인 / 주소
Surgilight, Inc.
대리인 / 주소
Knobbe, Martens, Olson & Bear LLP
인용정보
피인용 횟수 :
12인용 특허 :
55
초록▼
Presbyopia is treated by a system using various lasers to remove a portion of the scleral tissue and increase the accommodation of the presbyopic patient's eye. Stable accommodation is achieved by the filling of the sub-conjunctiva tissue to the laser-ablated scleral areas. The proposed laser wavel
Presbyopia is treated by a system using various lasers to remove a portion of the scleral tissue and increase the accommodation of the presbyopic patient's eye. Stable accommodation is achieved by the filling of the sub-conjunctiva tissue to the laser-ablated scleral areas. The proposed laser wavelength ranges from ultraviolet to infrared of (0.15-0.36) microns, (0.5-1.4) microns and (0.9-3.2) microns. Both scanning and fiber delivered systems are proposed to generate the ablation patterns. Laser ablation of the sclera may be conducted with or without opening the conjunctiva layer.
대표청구항▼
I claim: 1. A laser beam ophthalmic surgery method for treating a presbyopic patient by measuring a thickness of a sclera tissue of an eye of a patient, opening a subconjunctiva tissue of the eye, forming a gap in the sclera tissue by removing between approximately 60% and approximately 90% of the
I claim: 1. A laser beam ophthalmic surgery method for treating a presbyopic patient by measuring a thickness of a sclera tissue of an eye of a patient, opening a subconjunctiva tissue of the eye, forming a gap in the sclera tissue by removing between approximately 60% and approximately 90% of the sclera tissue thickness of the eye in a predetermined pattern and area, whereby the accommodation of the presbyopic eye increases via the movement of the ciliary body and zonular fiber connected to the lens of the eye, and allowing subconjunctiva tissue to fill the gap. 2. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the sclera tissue of an eye in accordance with claim 1 in which said movement of the ciliary body is provided by the increase of the flexibility of said laser beam ablated sclera tissue which is filled in by sub-conjunctiva tissue. 3. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern includes at least 3 radial lines around the area of the cornea outside the limbus and each radial line has a dimension of about (0.1-1.0) mm in width and (2.0-5.0) mm in length. 4. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined area is defined by the area outside the limbus and between two circles having diameter of about 10 mm and 18 mm. 5. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern includes at least 3 curved lines around the area of the cornea outside the limbus. 6. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern includes a dotted ring pattern around the area of the cornea outside the limbus and each dot has a size of about (0.1-2.0) mm in diameter. 7. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claims 1 in which said predetermined pattern is generated by a scanning mechanism. 8. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern is generated by a fiber-coupled device. 9. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern is generated by a translation device. 10. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said predetermined pattern is generated by a mask which is non-transparent to the said laser beam. 11. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said laser beam is a ultraviolet laser having a predetermined wavelength of about (0.15-0.36) microns. 12. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said laser beam is an infrared laser having a predetermined wavelength of about (0.9-6.0) microns. 13. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the scleral tissue of an eye in accordance with claim 12 in which said laser beam is tightly focused to a spot size of about (1-500) microns to selectively remove the sclera tissue underneath the conjunctiva layer. 14. A laser beam ophthalmic surgery method for treating presbyopic patient by removing portion of the sclera tissue of an eye in accordance with claim 1 in which said laser beam is a short pulse solid state laser having a predetermined wavelength of about (0.5-1.4) microns and a pulse width of about one femtosecond to one nanoseconds. 15. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the sclera tissue of an eye in accordance with claim 1 in which said laser beam is delivered to said predetermined area of the cornea by an optical fiber. 16. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the sclera tissue of an eye in accordance with claim 1 in which said sclera tissue is ablated by said laser beam after the conjunctiva is open. 17. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the scleral tissue of an eye in accordance with claim 1, wherein the step of measuring comprises measuring the patient's scleral thickness preoperatively. 18. A laser beam ophthalmic surgery method for treating presbyopic patient by removing a portion of the scleral tissue of an eye in accordance with claim 1, wherein the step of measuring comprises observing a color change of the ablated sclera tissue. 19. A laser beam ophthalmic surgery method for treating a presbyopic patient by measuring a thickness of a sclera tissue of an eye of a patient, removing between approximately 60% and approximately 90% of the sclera tissue thickness of the eye in a predetermined pattern and area, whereby the accommodation of the presbyopic eye increases via the movement of the ciliary body and zonular fiber connected to the lens of the eye, in which said scleral tissue is ablated by said laser beam without opening the conjunctiva. 20. The method according to claim 19, wherein the step of measuring comprises measuring a thickness of the sclera preoperatively. 21. The method according to claim 19, wherein the step of measuring comprises observing the color change of the sclera tissue. 22. A method of treating a presbyopic eye using a laser beam, the method comprising removing scleral tissue from the presbyopic eye in a predetermined pattern and area, wherein the scleral tissue is removed to form a gap having a depth of between about 400 μm and 700 μm, allowing a conjunctiva tissue of the eye to fill the gap in the scleral tissue without implanting an implant into the gap, and whereby accommodation of the presbyopic eye increases via movement of the ciliary body and zonular fiber connected to the lens of the presbyopic eye. 23. The method of claim 22, wherein: movement of the ciliary body is provided by sub-conjunctival tissue that is filled in where the scleral tissue is removed; and the sub-conjunctival tissue has an increased flexibility compared to the scleral tissue. 24. The method of claim 22, wherein: the predetermined pattern includes at least 3 radial lines around the area of the cornea outside the limbus; and each radial line has a dimension between about 0.1 mm and about 1.0 mm in width and between about 2.0 mm and about 5.0 mm in length. 25. The method of claim 22, wherein the predetermined area is defined by the area outside the limbus and between two circles having diameter of between about 10 mm and about 18 mm. 26. The method of claim 22, wherein the predetermined pattern includes at least 3 curved lines around the area of the cornea outside the limbus. 27. The method of claim 22, wherein the predetermined pattern includes a dotted ring pattern around the area of the cornea outside the limbus and each dot has a size of between about 0.1 mm and about 2.0 mm in diameter. 28. The method of claim 22, wherein the predetermined pattern is generated by a scanning mechanism. 29. The method of claim 22, wherein the predetermined pattern is generated by a fiber-coupled device. 30. The method of claim 22, wherein the predetermined pattern is generated by a translation device. 31. The method of claim 22, wherein the predetermined pattern is generated by a mask which is non-transparent to the said laser beam. 32. The method of claim 22, wherein the laser beam has a wavelength between about 0.15 μm and about 0.36 μm. 33. The method of claim 22, wherein the laser beam has a wavelength between about 0.9 μm and about 6.0 μm. 34. The method of claim 22, wherein the laser beam is generated by a short pulse solid state laser having a wavelength between about 0.5 μm and about 1.4 μm, and a pulse width between about one femtosecond and one nanosecond. 35. The method of claim 22, wherein the laser beam is delivered to the predetermined area by an optical fiber. 36. The method of claim 22, wherein the scleral tissue is ablated by the laser beam after the conjunctiva is open. 37. The method of claim 22, wherein the scleral tissue is ablated by said laser beam without opening the conjunctiva. 38. The method of claim 22, wherein the laser beam is focused to a spot size between about 1 μm and about 500 μm to selectively remove the sclera tissue underneath the conjunctiva layer. 39. A laser beam ophthalmic surgery method for treating a presbyopic patient by opening a subconjunctiva tissue of an eye of the patient, forming a plurality of gaps in a scleral tissue of the eye by removing a portion of the scleral tissue of the eye, determining if the gaps have reached a depth between approximately 60% and approximately 90% of the sclera tissue thickness by observing a color change of the remaining scleral tissue, whereby the accommodation of the presbyopic eye increases via the movement of the ciliary body and zonular fiber connected to the lens of the eye, and allowing subconjunctiva tissue to fill a plurality of the gaps.
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Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
Jacobson, Harry R. A.; Griffis, III, Jack C.; Cox, Mark A.; Williamson, Douglas C.; Zdenek, Gene W.; Richardson, Peter J.; Smolek, Michael K.; Soloway, Barrie D.; Bare, Rex O.; Scherer, Andrew J.; Payne, Timothy J., Scleral prosthesis for treating presbyopia and other eye disorders and related devices and methods.
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