571results about "Intraocular lens" patented technology

An ophthalmic lens configured to correct and / or treat at least one condition of the eye (e.g., presbyopia, myopia, hyperopia, astigmatism, binocular vision disorders, night vision image quality, and / or visual fatigue syndrome) comprising: a base power profile; and at least one pulse selected to modify the base power profile.

Systems and methods for compensating for tilt of an intraocular lens (IOL) and systems and methods for adjusting an IOL are disclosed herein. For example, one of the methods may include capturing one or more optical coherence tomography (OCT) images of a subject's eye while implanting the IOL within the subject's eye. The method may further include generating a fixation target such that the fixation target is visible to an eye of the subject; and moving the fixation target until the lateral plane of the IOL is perpendicular or substantially perpendicular to the optical axis of the ophthalmic system. The method may also include directing a laser beam generated by a laser of the ophthalmic system at the IOL.

An electroactive lens with raised resistive bridges is disclosed. The resistive bridges can connect many ring electrodes in an electroactive lens with a relatively small number of bus lines. These resistors are typically large to prevent excessive current consumption. Typically, they are placed in the same plane as the ring electrodes, which means that the ring electrodes are further apart or made discontinuous to accommodate the resistors. But further separating the ring electrodes or making them discontinuous degrades the optical quality of the lens. Placing the ring electrodes and resistors on layers separated by an insulator allows the ring electrodes to be closer together and continuous and have a high enough resistance to limit current consumption. It also relaxes the constraints on feature size and placement during processing to make the lens. And because the resistors and electrodes are on different planes, they can be formed of materials with different resistivities.

Systems and methods are provided for improving overall vision in patients suffering from a loss of vision in a portion of the retina (e.g., loss of central vision) by providing symmetric or asymmetric optic with aspheric surface which redirects and / or focuses light incident on the eye at oblique angles onto a peripheral retinal location. The intraocular lens can include a redirection element (e.g., a prism, a diffractive element, or an optical component with a decentered GRIN profile) configured to direct incident light along a deflected optical axis and to focus an image at a location on the peripheral retina. Optical properties of the intraocular lens can be configured to improve or reduce peripheral errors at the location on the peripheral retina. One or more surfaces of the intraocular lens can be a toric surface, a higher order aspheric surface, an aspheric Zernike surface or a Biconic Zernike surface to reduce optical errors in an image produced at a peripheral retinal location by light incident at oblique angles.

Systems and methods for intraocular lens (IOL) selection using emmetropia zone prediction include determining pre-operative measurements of an eye, estimating a post-operative anterior chamber depth (ACD) of an intraocular lens based on the pre-operative measurements, estimating a post-operative manifest refraction in spherical equivalent (MRSE) of the eye with the IOL implanted based on the pre-operative measurements and the estimated post-operative ACD, determining whether the eye with the IOL implanted is likely to be in an emmetropia zone based on the estimated post-operative MRSE, re-estimating the post-operative MRSE of the eye with the IOL implanted using an emmetropia zone prediction model or a non-emmetropia zone prediction model based on the emmetropia zone determining, and providing the re-estimated post-operative MRSE to a user to aid in selection of an IOL for implantation in the eye.

Devices configured to be implanted in a lens capsule of a human eye and securely hold an intraocular lens (IOL), and operable to displace the IOL relative to an optical axis of the IOL; the devices comprising a first member configured to be fixedly positioned inside the lens capsule, a second member to which the IOL is fixedly attachable, and a bendable structure attached at a first end thereof to the first member and at a second end thereof to the second member; the bendable structure being configured to be remotely controllably bended at various bending levels to thereby vary location of a periphery of the IOL, when the IOL is attached to the second member, along the IOL optical axis.

The invention relates to supplementary intraocular device for implantation into the capsular bag of an eye in addition to a primary intraocular lens, the supplementary intraocular device comprising a body (1), wherein the body (1) is opaque at least for visible light, and wherein the body (1) has a pinhole (2) being placed in a central area (3) of the body (1). The invention further relates to an arrangement.

An ophthalmic multifocal lens is presented, configured to provide distance vision and at least one other usable visual acuity. The lens comprises a translucent lens body having an optical axis and a refractive baseline, the refractive baseline extending to at least a portion of the lens body, and a diffraction grating configured to act as an optical splitter, extending concentrically in the radial direction and superimposed on at least a portion of the refractive baseline. The diffraction grating configured to act as an optical splitter is further configured to be continuous within at least a central 3 mm aperture, wherein the distance vision is provided by the -1st order diffraction, and the near vision is provided by the 2nd order diffraction.

A lens including a posterior surface, an anterior surface, and at least one identification marking on the lens. The at least one identification marking exhibits a first degree of visibility in an ambient lighting condition and a second degree of visibility greater than the first degree of visibility in a lighting condition different than the ambient lighting condition.

Silicone oil compositions contain a first copolymer composition having a first refractive index and a second copolymer composition having a second refractive index. The silicone oil compositions can be used in an enclosed cavity within a lens (e.g., intraocular lens) to match the refractive index of the refractive optical element in the lens.

This invention discloses an eyeball implant. According to this invention, an eyeball implant can be permanently implanted on the eyeball without the hassle of attachment and detachment, and can form a beautiful appearance that is integrated with the pupil without blocking the light-entering aperture.

A system and method for systematic, controlled removal of sterile products from blister packs for use during surgery is disclosed.

A method for comparing implants or prostheses, and / or surgical settings, based on a population of individuals each carrying an implant or prosthesis, the method comprising: A) for each individual: - recording the type of implants or prostheses, and / or at least one parameter of the surgical setting for the placement of the implant or prosthesis; - acquisition of clinical parameters; and - determination of a score (GS) quantifying a benefit provided to the individual by the intervention; B) classification of individuals so as to obtain at least two risk profile categories indicative of a ratio between a benefit provided and the risk incurred; C) for each category, calculation of a reference GS, the reference GS being a quantile of the GSs of the individuals in the category; after step C), comparison, within each category, of the types of implants or prostheses and / or surgical settings according to the GSs.

Disclosed herein are systems and methods for compensating for a tilt of an intraocular lens (IOL) and systems and methods for adjusting the IOL. For example, one of the methods can comprise capturing one or more optical coherence tomography (OCT) images of an eye of a subject when the IOL is implanted within the eye of the subject. The method can also comprise generating a fixation target such that the fixation target is visible to the eye of the subject and moving the fixation target until a transverse plane of the IOL is perpendicular or substantially perpendicular to an optical axis of an ophthalmic system. The method can also comprise directing a laser beam generated by a laser of the ophthalmic system at the IOL.

A pupil expander is formed from a frame of shape-memory material with a covering made of elastomer. The frame is in the form of two arc-shaped sections connected together at one end to form a broken circle having free distal ends. Each arc-shaped section has an upper frame portion and a lower frame portion connected to each other at the distal ends thereof. The covering is disposed over each arc-shaped section and has a C-shaped cross section so as to form an outwardly facing groove between the upper frame portion and the lower frame portion. The pupil expander is configured to be folded in half with the grooves facing each other and straightened so as to form a cylindrical body for insertion into a tubular applicator and upon release from the applicator, the pupil expander resumes the shape of the broken circle to push the margins of the pupil wider.

A multi-part intraocular lens (IOL) with an interchangeable optic seated on a base and secured by a locking mechanism. The optic comprises an anterior surface with a diameter greater than a diameter of a ring of the base. The posterior side of the optic has a posterior surface, a transition region for contact with the base, and sidewalls and tabs radially outward of the transition region. The sidewalls and tabs overlap at least a portion of the ring to reduce or even prevent decentration and tilt of the optic. Each tab has a lateral extension for coupling to the base.

An ophthalmic lens comprising an anterior surface; a posterior surface; and one or more geometrically defined shape and / or contour optical elements formed by altering a curvature of at least one of the anterior surface of the ophthalmic lens and / or the posterior surface of the ophthalmic lens; wherein the one or more geometrically defined shape and / or contour optical elements on the surface of the ophthalmic lens are formed by applying a function to one or more parameters of the ophthalmic lens in a predetermined region of the ophthalmic lens and in a predetermined direction.

A lens body, such as an intraocular lens, is configured to be implanted in an eye. An outer surface of the lens includes a combined cyclic surface, wherein the combined cyclic surface has a first portion periodically optimized at first focal length, a second portion periodically optimized at a second focal length, and a third portion that periodically connects the first and second portions. The third portion can be defined by a periodic function that varies in amplitude and frequency.

Certain embodiments provide a method of performing ophthalmic surgical procedures. The method includes ingesting and preparing pre-operative data and intra-operative data associated with a patient's eye for further processing. In certain embodiments, the method further includes integrating the pre-operative data and intra-operative data to generate context sensitive data for further processing. The method also includes classifying and annotating the pre-operative data, the intra-operative data, and the context sensitive data. The method also includes extracting one or more actionable inferences from the pre-operative data, the intra-operative data, context sensitive data, and the classified and annotated data. The method further includes triggering, based on the one or more actionable inferences, one or more actions on an imaging system or a surgical system.

The invention relates to an ophthalmological implant (10) having a main part (12), which comprises a preferably machine-readable product identifier (18), the product identifier (18) consisting to at least some extent of at least one interference dye (22).

A system for selecting an intraocular lens (IOL) for implantation in an eye includes a controller adapted to selectively execute a finite element model (FEM) and a machine learning module. The controller is adapted to receive input data including one or more biometric parameters of the eye. Based on the input data, a plurality of capsule parameters are extracted via the machine learning module. The controller is adapted to determine an axial displacement factor, in part, based on the plurality of capsule parameters via the FEM. The axial displacement factor takes into account the predicted axial offset of the IOL after implantation in the eye. When calculating lens constant parameters using the FEM and machine learning module, the axial displacement factor can be incorporated into the final IOL power.

Arrangement of artificial adaptive intraocular lenses whose operating mode is based on binocular interaction and the accommodation-convergence reflex of the eyes, i. wherein all electrically activated adaptive intraocular lenses (8)(9)(10) comprise activation mechanisms and are operated without interaction between the left and right eye, characterized in that ii. the arrangement of the novel artificial adaptive intraocular lenses, whose operating mode is based on binocular interaction (11.3)(12.3)(5) and the accommodation-convergence reflex of the eyes, is characterized by the inclusion of a microchip, wherein a microchip is used for each intraocular lens of each eye, the microchip containing magnetic nanoparticles with electromagnetic properties and made of biocompatible, non-cytotoxic material (5.1)(3.1)(4.1), wherein a conductor connected to the microchip forms a closed loop (5.2)(3.2)(4.2), and wherein the change in the distance between the microchips of the artificial intraocular lenses of the right and left eye during the convergence movements (5.3)(11.2)(12.2) and divergence movements (5.3)(11.1)(12.1) changes both the strength and the phase of the electromagnetic field (5.4) between the two microchips (5.1)(3.1)(4.1) of the two artificial intraocular lenses, which interact with each other, wherein this change in the strength and phase of the electromagnetic field (5.4) causes the generation of an electric charge or voltage at the ends of the conductor (5.5)(3.3)(4.3), which leads to an electric current flow (5.6)(3.4)(4.4) through the closed loop of the conductor (5.2)(3.2)(4.2) due to the induced voltage and according to the principle of electromagnetic induction.

The present invention provides an intraocular lens and related technologies, which have regions concentric with a lens center O, including at least one distance region for correcting visual acuity for distance vision and at least one near region for correcting visual acuity for near vision, wherein the power in the distance region is reduced to provide a negative vertical spherical aberration that at least partially offsets the positive vertical spherical aberration caused by the cornea, and the near region has a predetermined base power at the lens center O and adds a positive fixed power to an aspherical reference power within a predetermined radial range of a virtual aspherical lens that completely offsets the positive vertical spherical aberration caused by the cornea, and the near region has at least three sub-regions arranged radially, wherein sub-region 1 provides a positive power deviation for the positive fixed power, sub-region 2 provides an approximately zero power deviation for the positive fixed power, and sub-region 3 provides a negative power deviation for the positive fixed power.

The utility model provides a position adjusting instrument for an intraocular lens implantation operation of a lens eye, and relates to the field of ophthalmology medical instruments, the position adjusting instrument comprises a handle and a position adjusting hook acting piece; the position adjusting hook acting piece comprises a straight rod connected to the front end of the handle, a transition rod connected to the front end of the straight rod and a position adjusting rod connected to the front end of the transition rod. A first included angle alpha is formed between the transition rod and the straight rod; a position adjusting part is arranged at the front end of the position adjusting rod, and a second included angle beta is formed between the position adjusting rod and the transition part. According to the position adjusting instrument, through the unique structural design, the operation performance in a crystalline lens implantation operation is remarkably improved; wherein the position adjusting hook acting piece is composed of a straight rod, a transition rod and a position adjusting rod, and the operation position adjusting difficulty is effectively reduced through the specific angle design.