Apparatus and method for lens surgery

1 . An apparatus for carrying out lens surgery on a human eye, comprising:

a laser device for separating tissue of an eye lens of the human eye and a capsular bag of the human eye in a focus of pulsed laser radiation,

a focus positioning device for setting and adjusting a location of the focus,

a registration device for referencing the relative position of the location of the focus in relation to the relative position of eye structures comprising the eye lens and the capsular bag, and

a control device which reads data from the registration device and which controls the focus positioning device and which is designed to specify a pattern for the focus to the focus positioning device, said pattern forming cut surfaces which separate tissue layers in the eye lens for purposes of generating an accommodation space in the eye lens for receiving an intralenticular intraocular lens,

wherein the accommodation space comprises a cutout, open toward an anterior chamber of the eye, for inserting a dimensionally stable lens body of the intraocular lens and realizing at least one of the following features:

a) the accommodation space comprises a peripheral fastening region for fixing the lens body at a single, predetermined, axial position,

b) the accommodation space comprises a peripheral fastening region for fixing the lens body, the accommodation space and the fastening region being designed to receive the intraocular lens in sealing fashion so that the anterior chamber of the eye is separated in sealed fashion from rearward portions of the eye, and

c) a continuous posterior layer of tissue of the eye lens remains posterior to the cutout for the lens body,

wherein the cut surfaces form the accommodation space, to completely surround the intraocular lens with tissue of the eye lens both posterior and anterior in a peripheral ring region.

2 . The apparatus as claimed in claim 1 , further comprising a measuring apparatus for generating image data of eye structures comprising the eye lens and the capsular bag, the image data forming a basis for defining the cut surfaces.

3 . The apparatus as claimed in claim 1 , wherein the cut surfaces anterior to the accommodation space leave an anterior layer of tissue of the eye lens only in a peripheral eye lens region and the cutout inside of this peripheral eye lens region is open toward the anterior chamber.

4 . The apparatus as claimed in claim 1 , wherein the cut surfaces form the accommodation space as an anteriorly open pocket for the intraocular lens which only consists of the lens body, and the peripheral fastening region, when considered axially, is in the form of an outwardly tapering undercut.

5 . The apparatus as claimed in claim 1 , wherein the cut surfaces form the peripheral fastening region for snap-lock fastening.

6 . The apparatus as claimed in claim 1 , wherein the cut surfaces provide the peripheral fastening region with a thread structure.

7 . The apparatus as claimed in claim 1 , wherein the cut surfaces form the peripheral fastening region as an annular groove.

8 . The apparatus as claimed in claim 1 , wherein the cut surfaces form the peripheral fastening region with at least one, conical shoulder for contact with the lens body of the intraocular lens.

9 . The apparatus as claimed in claim 1 , wherein the cut surfaces are formed for the lens body which is dimensionally stable and which has an optical power to replace the natural eye lens of the human eye.

10 . An apparatus for carrying out lens surgery on the human eye, comprising:

a laser device for separating tissue of an eye lens of the human eye and a capsular bag of the human eye in a focus of pulsed laser radiation,

a focus positioning device for setting and adjusting a location of the focus,

a registration device for referencing the relative position of the location of the focus in relation to a relative position of eye structures comprising the eye lens and the capsular bag, and

a control device which reads data from the registration device and which controls the focus positioning device and which is designed to specify a pattern for the focus to the focus positioning device, said pattern forming cut surfaces which separate tissue layers in the eye lens for purposes of generating an accommodation space for an intralenticular intraocular lens,

wherein the accommodation space comprising a cutout for inserting a dimensionally stable lens body of the intraocular lens and realizing at least one of the following features:

a) the accommodation space comprises a peripheral fastening region for fixing the lens body at a single, predetermined, axial position,

b) the accommodation space comprises a peripheral fastening region for fixing the lens body, the accommodation space and the fastening region being designed to receive the intraocular lens in sealing fashion so that an anterior chamber of the eye is separated in sealed fashion from rearward portions of the eye, and

c) a continuous posterior layer of tissue of the eye lens remains posterior to the cutout for the lens body,

wherein the cut surfaces form the accommodation space, to completely surround the intraocular lens with tissue of the eye lens both posterior and anterior in a peripheral ring region.

11 . A method for lens surgery on the human eye, comprising the steps of:

providing an intralenticular intraocular lens comprising a lens body,

generating cut surfaces in an eye lens of the human eye, the cut surfaces separating tissue layers in the eye lens for purposes of generating an accommodation space for the intralenticular intraocular lens and the accommodation space comprising a cutout, open toward an anterior chamber, for a lens body of the intraocular lens and realizing at least one of the following features:

a) the accommodation space comprises a peripheral fastening region for fixing the lens body at a single, predetermined, axial position,

b) the accommodation space comprises a peripheral fastening region for fixing the lens body, the accommodation space and the fastening region being designed to receive the intraocular lens in sealing fashion so that the anterior chamber of the eye is separated in sealed fashion from rearward portions of the eye, and

c) a continuous posterior layer of tissue of the eye lens remains posterior to the cutout for the lens body, and

removing a volume delimited by the cut surfaces,

wherein the cut surfaces form the accommodation space, to completely surround the intraocular lens with tissue of the eye lens both posterior and anterior in a peripheral ring region.

12 . A method for lens surgery on the human eye, comprising the steps of:

providing an intralenticular intraocular lens comprising a lens body,

generating cut surfaces in an eye lens of the human eye, the cut surfaces separating tissue layers in the eye lens for the purposes of generating an accommodation space for the intralenticular intraocular lens and the accommodation space comprising a cutout for a lens body of the intraocular lens and realizing at least one of the following features:

a) the accommodation space comprises a peripheral fastening region for fixing the lens body at a single, predetermined, axial position,

b) the accommodation space comprises a peripheral fastening region for fixing the lens body, the accommodation space and the fastening region being designed to receive the intraocular lens in sealing fashion so that an anterior chamber of the eye is separated in sealed fashion from rearward portions of the eye, and

c) a continuous posterior layer of tissue of the eye lens remains posterior to the cutout for the lens body, and

removing a volume delimited by the cut surfaces,

wherein the cut surfaces form the accommodation space, to completely surround the intraocular lens with tissue of the eye lens both posterior and anterior in a peripheral ring region.

13 . The method as claimed in claim 12 , further comprising the steps of:

gathering a measurement data which indicate a relative position of eye structures comprising an eye lens of the human eye and a capsular bag-of the human eye,

defining the cut surfaces in the eye lens and determining a pattern of locations of a focus of pulsed laser radiation, the locations being located on the defined cut surfaces, and

generating data representing the pattern of locations for an apparatus that emits the pulsed laser radiation to generate the cut surfaces in the eye lens.

14 . The method as claimed in claim 13 , further comprising insertion of the intraocular lens into the accommodation space.

15 . The method as claimed in claim 13 , wherein the cut surfaces are formed such that an anterior layer of tissue of the eye lens remains anterior to the cutout, said anterior layer of tissue being continuous apart from an access incision which leads to the cutout and penetrates the tissue of the eye lens and capsular bag.