A61F2/1648

Haptic combinations for accommodating intraocular lenses

A haptic combination comprising at least one optical element adapted to provide at least two optical functions including provision of a fixed optical power and provision of variable optical power. The haptic combination comprises at least a first haptic adapted to provide anchoring and positioning of at least one of the optical elements and at least a second haptic adapted to provide transfer of movement from at least one driving means in the eye to at least one of the optical elements. Movement of the second haptic is independent from movement of the first haptic.

Intraocular lens, in particular ciliary intraocular lens
09744027 · 2017-08-29 · ·

The present invention relates to an intraocular lens, in particular a ciliary intraocular lens having at least one optic and one haptic element. In order to create an intraocular lens that enables a symmetrical deformation of one or several optic elements of the intraocular lens as well as a relative displacement of these optic elements on their optical axis to each other, so that a sufficient change in refractive power is achieved, it is proposed that the haptic element is composed of several haptic elements, preferably connected to the optic element in equiangular manner, wherein a) the haptic elements have an essentially trapezoidal portion in a plan view and the bases of two adjacent haptic elements are connected to each other at the transition to the optic element and b) the haptic elements on the side of the trapezoidal portions facing away from the optic element have a part of annular haptic ring segment, wherein the haptic ring segments of two adjacent haptic elements in the unloaded state are spaced slightly away from one another, Furthermore, a method for implantation of an intraocular lens having at least one optic element and one haptic element, and a filling is claimed. According to the invention, the intraocular lens is folded or rolled to reduce the volume so that the filling is at least partially disposed in one or possibly several reservoir/s and the filling is at least partially pressed from the reservoir into the cavity after implantation.

LENS DESIGN
20170239040 · 2017-08-24 ·

An intraocular lens is configured to reduce or eliminate oblique incident light photic disturbances in the eye. The lens includes anterior and posterior surfaces defining a central lens optic extending from the anterior to the posterior surfaces and a peripheral portion outside of the central lens optic. The peripheral portion is a prismatic lens that redirects oblique incident light on the peripheral portion forward of the nasal retina in the eye and onto the ciliary body/pars plana region.

METHODS AND SYSTEMS FOR CHANGING A REFRACTIVE PROPERTY OF AN IMPLANTABLE INTRAOCULAR LENS

A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

INTRAOCULAR LENS SYSTEM, INTRAOCULAR LENS AND CILIAR BODY IMPLANT
20220304799 · 2022-09-29 ·

An intraocular lens system for implantation in an eye is provided. The intraocular lens system has a ciliary body implant with a ciliary magnet element, the ciliary body implant being implantable in the eye such that the ciliary magnet element at least partially follows the movements of the ciliary body of the eye. The intraocular lens system also includes an intraocular lens with a lens magnet element. The ciliary body implant and the intraocular lens are formed separately from each other and the intraocular lens system is adapted to control a refractive effect of the intraocular lens via an interaction between the ciliary magnet element and the lens magnet element in the eye. The disclosure also relates to a ciliary body implant and an intraocular lens.

Intraocular lenses with shape-changing optics
11426272 · 2022-08-30 · ·

An intraocular lens (IOL) with a shape-changing optic is provided. The shape-changing optic includes an elastic anterior face located anterior to the equator. The anterior face has an anterior surface, a posterior surface, and a periphery. The shape-changing optic also includes a posterior face having an anterior surface, a posterior surface, and a periphery. An elastic side wall can extend across the equator and extend from the anterior face to the posterior face. A chamber can be located between the anterior face and the posterior face. The IOL can further include at least one haptic extending from the periphery of the anterior face, the periphery of the posterior face, or both.

Adjustable accommodating intraocular lens and positioning means

An accommodating intraocular artificial lens with variable optical power, comprising two optical elements which are adapted to mutually shift in a direction perpendicular to the optical axis wherein the optical elements have such a shape that the optical elements exhibit, in combination, different optical powers at different relative positions. Flanges are adapted to position the anterior section of the haptics in the sulcus of the eye or, alternatively, the ciliary body is enclosed by a combination of anterior and posterior flanges. Also disclosed are methods to provide for an accommodating intraocular lens which is adjustable post-implant to ensure emmetropia of the eye.

Accommodating intraocular lens having dual shape memory optical elements
09814568 · 2017-11-14 · ·

An accommodating intraocular lens (AIOL) for implantation in a human eye includes a housing including an anterior member with a leading surface, a posterior member with a trailing surface, a leading shape memory optical element adjacent the anterior member and resiliently elastically deformable between a non-compressed shape in a non-compressed state of the AIOL and a compressed shape in a compressed state of the AIOL, and a trailing shape memory optical element adjacent the posterior member and elastically deformable between a non-compressed shape in the AIOL's non-compressed state and a compressed shape in the AIOL's compressed state for selectively bulging into the leading shape memory optical element on application of a compression force the said longitudinal axis against the trailing surface from a posterior direction for modifying the shape of the leading shape memory optical element with respect to its non-compressed shape in the AIOL's the non-compressed state.

Ophthalmic lens combinations
09814570 · 2017-11-14 · ·

An ophthalmic device is provided for a patient that has a basic prescription for distant vision, the ophthalmic device including a primary optic and a supplemental optic. The primary optic is configured for placement in the eye and has a base optical power configured to substantially provide the basic prescription. The supplemental optic has an optical power that is less than the optical power of the primary optic and is configured to provide, in combination with the primary optic, a combined optical power that provides the basic prescription of the patient. In addition, at least one surface of the primary optic is configured to deform in response to an ocular force so as to modify the combined optical power by at least 1 Diopter. The ophthalmic device may further include a movement assembly operably coupled to the primary optic that is structured to cooperate with the eye to effect accommodating deformation of the primary optic in response to an ocular force produced by the eye. The movement assembly may also be configured to provide accommodating axial movement of the primary optic.

INTRAOCULAR LENS DESIGNS FOR IMPROVED STABILITY

Intraocular lenses (IOLs) that improve lens stability by, for example, increasing anterior-posterior stiffness of the IOL, increasing anterior-posterior dimensions of the IOL and/or increasing contact area with the equator of the bag to resist movement of the IOL as the bag collapses over time. These IOLs may be non-modular (single component) or modular (multiple component). In modular embodiments, the IOL system may include intraocular base and optic components, which, when combined, form a modular IOL.