929results 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.

The invention provides an ICL postoperative arch height prediction and adjustment method and device, and the method comprises the steps: a data obtaining step: obtaining eye anatomical data of a patient, including the diameters of a short axis and a long axis of a ciliary sulcus; acquiring state data of the current implanted ICL, wherein the state data comprises a nominal size and a rotation angle in an eye; a geometric modeling and calculation step: establishing a two-dimensional geometric model of the ICL in the elliptical ciliary sulcus based on the nominal size of the ICL and the diameters of the long and short axes of the ciliary sulcus, calculating the diagonal length limited by four supporting leg points of the ICL on the model according to the rotation angle of the ICL in the eye, and further calculating the theoretical geometric arch height; and an adjustment scheme generation step: on the basis of the calculated theoretical geometric arch height, generating at least one secondary operation adjustment scheme for adjusting the actual postoperative arch height to be within a clinical ideal range, the adjustment scheme comprising rotating the current ICL to a new angle or replacing the current ICL with another ICL with a different size.

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.

A computer-implemented method for determining the refractive power of an intraocular lens to be inserted is presented. The method includes generating first training data for a machine learning system on the basis of a first physical model for a refractive power for an intraocular lens and training the machine learning system by means of the first training data generated, for the purposes of forming a first learning model for determining the refractive power. Furthermore, the method includes training the machine learning system, which was trained using the first training data, using clinical ophthalmological training data for forming a second learning model for determining the refractive power and providing ophthalmological data of a patient and an expected position of the intraocular lens to be inserted. Moreover, the method includes predicting the refractive power of the intraocular lens to be inserted by means of the trained machine learning system and the second learning model. In the process, the ophthalmological data provided and the position of the intraocular lens are used as input values for the machine learning system with the second learning model.

Described are implementations of systems and methods for an improved machine learning-based system that incorporates pre-operative and intraoperative measurements captured during surgery, as well as additional patient-specific data, to provide an individualized, highly accurate post-operative manifest refraction prediction. According to some embodiments, a determination engine generates a predictive feature set of one or more predictors associated with diagnostic measurements of one or more eyes and performs a recursive selection operation using one or more combinations within the predictive feature set and one or more models to produce a most predictive subset, the most predictive subset having a highest prediction accuracy among other predictive subsets for post-operative manifest refraction. The determination engine generates a determination model by refining and retraining the one or more models of the recursive selection operation utilizing the most predictive subset.

There is provided an intraocular lens injector for improving accuracy of tacking, which is an intraocular lens injector 1 for injecting an intraocular lens 4 into an eye, the intraocular lens including an optical portion 41 having an optical function and support portions 42a and 42b extending from the optical portion 41, including: a protrusion 20 for bending a forward support portion 42a while abutting against the forward support portion 42a, the forward support portion being one of the support portions 42a and 42b and being disposed on the front side in an advancing direction of the intraocular lens, when making the intraocular lens 4 advance along an inner wall of a hollow body in which the intraocular lens 4 is set and thereby releasing the intraocular lens 4 from the hollow body in a state in which the intraocular lens 4 is folded with an inner surface of the optical portion 41 facing inward, wherein the protrusion 20 has a retainer that temporarily suppresses progress of bending of the forward support portion 42a by retaining the forward support portion 42a, when the intraocular lens 4 is being folded.

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

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.

An intraocular assembly includes an intraocular device that includes at least one haptic, and a secondary haptic loop including two ends that are coupled to the at least one haptic, the secondary haptic loop being made of a material which can be tied.

Systems, devices and methods are provided that provide assistance in selecting appropriate interventions for treatment of disease and injury to the eye. Systems of the inventive concept provide cloud-based processing and storage of clinical and patient-specific data, which can provide treatment recommendations and projected outcomes to a practitioner using a local device. Systems, devices, and methods can generate interactive physiomechanical models of the eye of a specified individual, which are derived measurements of mechanical properties of structures of the eye. The physiomechanical model is interactive, and can be used to emulate the effects of one or more medical interventions in the eye in order to implement an optimized treatment plan for the individual.

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.

A method and system delivers customizable microcurrent stimulation to ocular tissue using a three half-bridge driver circuit. The system includes a control circuit that selectively switches high-side and low-side transistors, such as MOSFETs, to generate various electrical waveforms, such as stepped, asymmetric biphasic, pulsed, and triangular waveforms. These waveforms are applied to electrodes in contact with the eye for therapeutic treatment, addressing conditions like age-related macular degeneration (AMD) and other ocular disorders. The system allows for adjustments in amplitude, frequency, and duration of the waveforms, providing personalized treatment protocols tailored to patient-specific needs. High-impedance periods are included between pulses to promote tissue recovery and enhance patient comfort. Additionally, a non-transitory computer-readable storage medium stores a program that controls the system, enabling real-time waveform generation and dynamic adjustment during treatment. This approach offers a flexible and efficient solution for ocular therapy, improving both treatment outcomes and patient experience.

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.

The utility model relates to a drug reservoir (4) for an intraocular lens (1), having a drug, a through-hole (8), a first drug reservoir gap (23) communicating with the through-hole (8), a first connecting plate (25) defining the first drug reservoir gap (23), a first end face (31) defining the through-hole (8), and a second end face (32) arranged opposite the first end face (31) and defining the through-hole (8), the passage opening (8) has a first longitudinal end (34) in the region of the first end face (31) and a second longitudinal end (35) in the region of the second end face (32), the drug reservoir (4) having a displacement direction (15) oriented from the first longitudinal end (34) to the second longitudinal end (35), the first drug reservoir gap (23) is formed such that the through-hole (8) is accessible through the first drug reservoir gap (23) from the outside of the drug reservoir (4) in a drug reservoir radial direction (16) with respect to the displacement direction (15).

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

The contact lens tool is a device intended to make it easier to insert and remove a contact lens from a person's eye. To accomplish this, the device includes a unique applicator head specifically designed to pick up and hold a contact lens. According to a preferred embodiment, the applicator head can be adjusted to various positions, depending on how the device is used. For inserting or removing a contact lens, the applicator head is most effective when partially open, forming a "Y" shape. This shape allows the applicator head to hold a wide range of contact lenses. Alternatively, the applicator head can be fully opened, forming a "T" shape. When not in use, the applicator head can be folded to a fully closed position, forming an "I" shape. This shape reduces space, allowing the device to be stored in a small compartment such as a wallet or purse.

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.

The disclosure relates to an intraocular lens having an optic body and a haptic element including a thermoresponsive polymer having a transition temperature and particles that are magnetic and / or magnetizable. The disclosure additionally relates to a treatment apparatus including the intraocular lens and a magnet set up to subject the intraocular lens to a magnetic field that alternates with time.