Rotational Stable Intraocular Lens Anchored in Asymmetrical Capsulorhexis

Abstract

The invention discloses an intraocular lens construction with the lens construction including one or more rotational haptics extending away from the optical component which haptic provide coupling of the lens construction to the rim of at least one asymmetrical capsulorhexis in the capsular bag. The lens construction, fitted with at least one anterior rotational haptic can be positioned inside the capsular bag, or the lens construction fitted with at least one posterior rotational haptic can be positioned at the sulcus plane in front of the capsular bag. Such a lens construction provides rotational stability any type of intraocular lens including any toric intraocular lens.

Claims

1. A rotational stable intraocular lens construction, adapted to be implanted in an eye, the lens construction comprising at least one optical component, adapted to provide correction of at least one optical aberration of the eye and haptics adapted to position the lens construction in the eye, characterized in that the haptics comprise at least one rotation haptic, adapted to provide coupling of the lens construction to an asymmetrical shaped capsulorhexis provided in the capsular bag.

2. The lens construction according to claim 1, characterized in that the lens construction is adapted to be implanted in the capsular bag and that the lens construction comprises at least one anterior haptic which haptic is adapted to provide coupling of the lens construction to the capsulorhexis which is provided in the anterior section of the capsular bag.

3. The lens construction according to claim 1, characterized in that the lens construction is adapted to be implanted at the sulcus plane, the plane behind the iris of the eye and in front of the capsular bag, with the lens construction comprising at least one posterior haptic adapted to provide anchoring of the lens construction to the capsulorhexis which is provided in the anterior section of the capsular bag.

4. The lens construction according to claim 2, characterized in that the lens construction comprises at least one posterior haptic, which haptic is adapted to provide coupling of the construction to a capsulorhexis which is provided in the posterior section of the capsular bag.

5. The lens construction according to claim 1, characterized in that the parts of the lens construction are composed of the same material.

6. The lens construction according to claim 1, characterized in that the parts of the lens construction are composed of different materials.

7. The lens construction according to claim 1, characterized in that construction is comprises an optical component, comprising the optics and a mechanical component, comprising the haptics.

8. The lens construction according to claim 1, characterized in that the lens construction comprises at least one monofocal optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye.

9. The lens construction according to claim 1, characterized in that the lens construction comprises at least one multifocal optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye.

10. The lens construction according to claim 1, characterized in that the lens construction comprises at least one extended depth of field optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye.

11. The lens construction according to claim 1, characterized in that the lens construction comprises also at least one accommodative optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye.

12. The lens construction according to claim 8, characterized in that the lens construction comprises at least one additional optical surface which surface is adapted to correct for at least one additional optical aberration other than defocus.

13. The lens construction according to claim 12, characterized in that the lens construction comprises at least one additional optical surface adapted to provide correction of astigmatism of the eye.

14. The method for providing a lens construction according to claim 1 in the eye, characterized in that that the method comprises providing a asymmetrical capsulorhexis.

15. The method according to claim 14, characterized in that that the capsulorhexis is provided in an anterior and/or posterior part of a capsular bag of an eye, in particular performing a laser-assisted capsulotomy, and that the method further comprises the following steps: removing a natural lens from the capsular bag through said capsulorhexis, inserting the lens construction into the capsular bag through said capsulorhexis or, alternatively, anterior to the capsular bag, taking at least a section of the rotation haptic out the capsular bag while leaving the optical component inside the capsular bag, or, alternatively, positioning the rotation haptic inside the capsular bag while leaving the optical component outside the capsular bag.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Subsequently the present invention will be elucidated with the help of the following drawings, showing:

[0031] FIG. 1: A front view of the remaining rim of the capsular bag, 1, provided with a, traditional round, symmetrical, capsulorhexis, 2, and rotation haptics, 3. In such embodiment the capsulorhexis shape allows rotation of the lens, see the arrows, 4;

[0032] FIG. 2: A front view: Capsular bag rim, 1, provided with an oval asymmetrical capsulorhexis, 5, and rotation haptics, 6. In such embodiment the shape of the capsulorhexis prevents rotation, see the arrows, 7;

[0033] FIG. 3: A front view: As FIG. 2, with the capsular bag provided with an aligned double-oval shaped capsulorhexis, 8, which shape prevents rotation, see arrows. Note: FIG. 1-3 provide a view perpendicular to the optical axis, that is a frontal view, which view is similar for a lens construction with anterior rotation haptics and posterior rotation haptics;

[0034] FIG. 4: A side view: The lens construction, in this example comprising a single optic, for example, a monofocal toric lens, implanted in the eye inside the capsular bag with the eye with cornea, 9, the anterior chamber of the eye, 10, the iris, 11, a lens construction, 12, the capsular bag and capsulorhexis, 13. The two posterior haptics, 16, anchor the lens construction in the, asymmetric, capsulorhexis;

[0035] FIG. 5: A side view, for further anatomical details see FIG. 4: The lens construction implanted in the eye at the sulcus plane The two anterior haptics, 14, anchor the lens construction in the, asymmetric, capsulorhexis;

[0036] FIG. 6: A side view, for further anatomical details see FIG. 4: As FIG. 4, but with a construction positioned though a capsulorhexis in both the anterior and the posterior segments of the capsule with the construction with anterior rotation haptics;

[0037] FIG. 7: A side view, for further anatomical details see FIG. 4: An example of a lens construction with both anterior and posterior rotation haptics; and

[0038] FIG. 8: A side view, for further anatomical details see FIG. 4: Lens construction, in this example comprising a double element optic, 15, for example, an accommodating lens according to for example NL2012133 and US2012310341 which is implanted in the eye at the sulcus plane and with accommodation driven by the ciliary mass and ciliary muscle, 16, in a direction perpendicular to the optical axis, see arrows, 17. The two posterior haptics, 18, anchor this lens construction in the, asymmetric, capsulorhexis.

DESCRIPTION OF THE INVENTION

[0039] The rotation haptics can comprise hook-shaped components, or, alternatively, clamp-shaped components, or, alternatively, ridge-shaped components, or, alternatively, slit-shaped components, tapered-shaped component, or, alternatively, any other shaped components to couple the rotation haptic to the rim of the capsulorhexis. All said haptic shapes can be mutually shifted or staggered.

[0040] The lens construction can comprise monofocal optics which can also can comprise a toric optical component. Alternatively, the lens construction can comprise multifocal optics which can also can comprise a toric optical component. Alternatively, the lens construction can comprise extended depth of field, DOF, optics which can also can comprise a toric optical component. Alternatively, the lens construction can comprise accommodative which can also comprise a toric optical component. The lens can be construction is composed of a combination of at least two components with at least one component, the optical component, comprising the optics and at least one other component, the mechanical component, comprising the haptics.

[0041] So, regarding optics, the lens construction can comprise various optical embodiments, such as at least one monofocal optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye, or, alternatively, the construction can comprise at least one multifocal optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye, or, alternatively, the construction can comprise at least one extended depth of field optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye. The construction can comprises also at least one accommodative optical component comprising at least one optical surface which component is adapted to provide correction of defocus of the eye, with all of these optical embodiments can also comprise at least one additional optical surface which surface is adapted to correct for at least one additional optical aberration other than defocus, for example, with said surface at least one additional optical surface adapted to provide correction of astigmatism of the eye.

[0042] The method related to said rotationally stable intraocular lenses comprises providing at least one asymmetrical capsulorhexis, and fixation of the construction into an eye with the method in turn comprising forming an asymmetric opening, capsulorhexis, in an anterior and/or posterior part of a capsular bag of an eye, in particular performing a laser-assisted capsulotomy, and, removing a natural lens from the capsular bag through said opening, and, inserting the construction inside the bag through said opening or, alternatively, in front of the capsular bag, and, taking the anterior haptic components out the capsular bag while leaving the optical component inside the capsular bag, or, alternatively, positioning the posterior haptic components inside the capsular bag while leaving the optical component outside the capsular bag.

[0043] The description and drawings illustrate some embodiments of the invention, and do not limit the scope of protection. Many more embodiments will be evident to a skilled person. These embodiments are within the scope of protection and the essence of this invention and are obvious combinations of techniques and the disclosure of this patent.

[0044] So, in summary, this invention discloses an intraocular lens construction being adapted to be implanted in the with the lens construction comprising at least one rotation haptic extending with a component in the direction of the optical axis and which haptic is adapted to provide coupling the lens to, anchoring the lens, to at least one natural structure of the eye, for example, to at least one asymetrically shaped capsulorhexis in the capsular bag of the eye, with the lens construction adapted to be implanted in the capsular bag and that the at least one rotation haptic extending in the anterior direction and is adapted to provide anchoring the lens construction in the asymmetrical anterior capsulorhexis, or, alternatively, with the lens construction adapted to be implanted anterior, in front of, of the capsular bag, with the rotation haptic extending in the posterior direction and that the haptic is adapted to provide anchoring the lens construction in the asymmetrical anterior capsulorhexis, with the angle of the rotational asymmetrical anterior capsulorhexis adapted to provide

[0045] anchoring of the lens construction at a mechanically rotational angle, or, alternatively, with the angle of the rotational asymmetrical anterior capsulorhexis adapted to provide

[0046] anchoring of the lens construction at an optically rotational angle, with the lens construction comprises monofocal optics, or, alternatively, with the lens

[0047] construction comprising multifocal optics, or, alternatively, with the lens

[0048] construction comprising extended depth of field, DOF, optics, or, alternatively, with construction comprising accommodative optics.

[0049] In addition to the above invention, and fully independent from the above invention, it is also disclosed that a rotationally stable intraocular lens can be provided by a rotation ‘pin-in-hole’ configuration, or, alternatively, ‘clamp-in-hole’ configuration, or, alternatively, ‘rivet-in-hole’ configuration, or, alternatively, any other shaped coupling configuration, henceforth configurations referred to as ‘pin-in-hole’, coupling the construction to the capsular bag not at the rim of the bag as outlined above, but in the rim of the bag, meaning: in the remaining ring in between the zonulae and the capsulorhexis. Such ‘pin-in-hole’ rotational stable intraocular lens construction’, also: ‘construction’, to be implanted in the eye with the lens construction comprising at least one optical component, also: ‘optics’, adapted to provide correction of at least one optical aberration of the eye with the lens also comprises at least one rotation pin which pin is adapted to fit, couple to, in at least hole in the rim of the anterior capsular bag, or, alternatively, in the posterior capsular bag, which can have a rim, or, alternatively, in holes in both the anterior and the posterior bag. Such construction does not necessarily requires a asymmetrical capsulorhexis which capsulorhexis can also be circular, annular. However, a asymmetrical capsulorhexis, for example, an oval rhexis, can provide additional space for pins or rivets at the smallest diameter of the rhexis. Holes and pins can be provided to the rim of the anterior capsule, or, alternatively, to the rom of the posterior capsule, or alternatively, to the rims of both capsules. Clearly, laser assisted capsulotomy is the preferred method to provide for capsulorhexis and, specifically, for said holes in the capsular tissue which can not be provided by manual surgery.

[0050] The method related to said ‘pin-in-hole’ rotationally stable intraocular lenses comprises providing at least one asymmetrical capsulorhexis and at least one, preferably two or more, small holes of any shape in a rim of the capsular bags by laser assisted capsulotomy, a shape favourable for fitting the pins, removing a natural lens from the capsular bag through said opening, and, inserting the construction inside the bag through said opening or, alternatively, in front of the capsular bag, rotation and manipulation to fit pins in the holes followed by traditional surgicals irrigation and cleaning.

[0051] Figure A. Front view: Capsular bag remaining rim, 1, and capsulorhexis, 2, and reflection on the optical component of the lens, 2a, and in this example the pins connected to the lens construction fitted in the holes in the capsular rim.

[0052] Figure B. As Figure A, but with clamps which couple the construction to the rim of the capsular bag.

[0053] Figure C. Side view: Lens construction comprising pins.

[0054] Figure D. Side view: Lens construction comprising clamps.

[0055] Figure E. Front view: Lens construction with pins.

[0056] Figure F. Front view of lens construction with rivets.

[0057] Figure G. Construction and coupling as outlined in Figures A-F, but with a asymmetrical capsulorhexis which allow pins or rivets to be poisoned in the preferable widest section of the remaining rim of the bag, see arrows 9 and 10.

[0058] So, the present document discloses a rotational stable intraocular lens construction, to be implanted in an eye, with the lens construction comprising at least one optical component to provide correction of at least one optical aberration of the eye and haptics to position the lens construction in the eye with the haptics comprising at least one rotation haptic to provide coupling of the lens construction to an asymmetrical capsulorhexis provided in the capsular bag. The lens construction can be adapted to be implanted in the capsular bag with the lens construction comprising at least one anterior haptic which haptic provides coupling of the lens construction to the capsulorhexis which is provided in the anterior section of the capsular bag, or, alternatively, the lens construction can be adapted to be implanted at the sulcus plane, the plane behind the iris of the eye and in front of the capsular bag, with the lens construction comprising at least one posterior haptic to provide anchoring of the lens construction to the capsulorhexis which is provided in the anterior section of the capsular bag, or, alternatively, the lens construction can comprises at least one posterior haptic to provide coupling of the construction to a capsulorhexis which is provided in the posterior section of the capsular bag. The lens construction comprises an optical component, comprising the optics and a mechanical component, comprising the haptics and the construction can be composed of the same material, or, alternatively, the lens construction can be composed of different materials.

[0059] The lens construction can comprise at least one monofocal optical component comprising at least one optical surface which component provides correction of defocus of the eye, or, alternatively, the lens construction can comprise at least one multifocal optical component comprising at least one optical surface which component provides correction of defocus of the eye, or, alternatively, the lens construction comprises at least one extended depth of field optical component comprising at least one optical surface which component to provides correction of defocus of the eye, or, alternatively, the lens construction comprises also at least one accommodative optical component comprising at least one optical surface which component provides correction of defocus of the eye with such lens constructions can also comprises at least one additional optical surface which surface provide to correction of at least one additional optical aberration f the eye other than defocus which the additional optical surface providing, for example, correction of astigmatism of the eye.

[0060] The method for providing a lens construction according to one of the preceding claims in the eye can comprise providing a asymmetrical capsulorhexis, in an anterior and/or posterior part of a capsular bag of an eye, in particular performing a laser-assisted capsulotomy, and that the method further comprises the following steps:

[0061] removing a natural lens from the capsular bag through said capsulorhexis, inserting the lens construction into the capsular bag through said capsulorhexis or, alternatively, inserting the lens construction anterior of the capsular bag, taking at least a section of the rotation haptic out the capsular bag while leaving the optical component inside the capsular bag, or, alternatively, positioning the rotation haptic inside the capsular bag while leaving the optical component outside the capsular bag.