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32 results about "Aphakia" patented technology
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Aphakia is the absence of the lens of the eye, due to surgical removal, such as in cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes a loss of accommodation, far sightedness (hyperopia), and a deep anterior chamber. Complications include detachment of the vitreous or retina, and glaucoma.
Ophthalmic lenses
ActiveUS7036931B2Correcting and minimizing presbyopiaAvoid problemsSpectales/gogglesSurgical instrument detailsAphakiaEye lens
The present invention provides an ophthalmic lens capable of correcting or minimizing presbyopia, or of functioning used as an anti-myopic lens. The ophthalmic lens can be a contact lens, a phakic intraocular lens or an aphakic intraocular lens. The ophthalmic lens comprises an optical zone, the optical zone having a first surface and an opposite second surface and including a coma-like wavefront aberration oriented vertically from the top to the bottom of the ophthalmic lens. In addition, the present invention provides a method for minimizing / correcting presbyopia or for preventing children's eyes from becoming severely myopic.
Owner:ALCON INC
Determination of the effective lens position of an intraocular lens using aphakic refractive power
An ophthalmic method for determining a relationship between aphakic ocular power and estimated effective lens position (ELP) of an intraocular lens (IOL) to be implanted in a patient's eye. The method can be used to determine an estimate of the ELP of an IOL given the aphakic ocular power of the patient's eye, for example, without measurement of the corneal curvature or axial length of the patient's eye. The estimate of ELP can then be used to determine a suitable value of optical power for the IOL to be implanted in the patient's eye.
Owner:ALCON INC
Haptic devices for intraocular lens
InactiveUS20120330415A1Increased damming qualitySufficient flexibilityIntraocular lensAphakiaHuman eye
A haptic for fixation to, and manufacture in conjunction with, an intraocular lens to be implanted in the natural lens capsule of the human eye is disclosed. The haptic secures the lens in an appropriate position within the natural capsule so as to provide optimal visual acuity through the aphakic lens. The haptic ends are designed to position the lens neutrally, anteriorly or posteriorly within the lens envelope. The haptic has a of an anterior retention ring and a posterior retention ring.
Owner:ANEW IOL TECH
Intraocular lens insertion device
An intraocular lens insertion device comprises a pad formed by an elastic element harmless to a living body, a drawing thread mounted on a rear portion of the pad, and an insert portion formed at a front portion of the pad. The insert portion has a shape suitable to fit into a ciliary sulcus of an aphakic eye. The pad has a thickness capable of covering a tip end of a surgical needle.
Owner:SUGIURA TAKESHI
Method of lifting an epithelial layer and placing a corrective lens beneath it
This relates to a lens made of donor corneal tissue suitable for use as a contact lens or an implanted lens, to a method of preparing that lens, and to a technique of placing the lens on the eye. The lens is made of donor corneal tissue that is acellularized by removing native epithelium and keratocytes. These cells optionally are replaced with human epithelium and keratocytes to form a lens that has a structural anatomy similar to human cornea. The ocular lens may be used to correct conditions such as astigmatism, myopia, aphakia, and presbyopia.
Owner:TISSUE ENG REFRACTION
Foldable Intraocular Lens With Adaptable Haptics
A foldable low-compression intraocular lens configured for installation into the anterior chamber of a phakic, pseudophakic or aphakic eye, or a combination thereof. The lens is preferably rolled for insertion through a small corneal incision. Preferably, the implant comprises a resiliently flexible haptic body (100) an optical lens (102) and haptics that position the lens within the anterior (103) chamber without excessive compressive forces. The disclosed lens uses refractive or diffractive optics, or a combination of both. One embodiment of the lens (102) contains an optical lens that uses a multi-order diffractive (MOD) structure. An advantage of the disclosed lens is that a single size device will fit any eye, thus the disclosed invention provides a “one-size-fits-all” intraocular lens.
Owner:VISION MEMBRANE TECH
Biocompatible polymeric compositions for use in making anterior chamber intraocular lenses
Biocompatible polymers useful for making anterior chamber intraocular lenses (AC-IOL) are provided. The biocompatible polymers are generally composed of one or more acrylate monomers, crosslinked with at least one diacrylate ester and may include one or more additional components such as ultraviolet light and / or blue-violet light absorbing dyes. The AC-IOLs made using the biocompatible polymers disclosed herein are suitable for placement in phakic or aphakic eyes and are intended for refractive correction including myopia, hyperopia, presbyopia and astigmatisms.
Owner:JOHNSON & JOHNSON SURGICAL VISION INC
Injectable bag intraocular lens system, inserting device for use therewith, method for inserting an injectable bag intraocular lens within a human eye, methods for treating aphakia and system kits
Featured is an injectable intraocular lens system including an insertion and injection device and an injectable intraocular lens. In its broadest aspects, the injectable intraocular lens is a deflated flexible bag that is disposed within the insertion and injection device prior to insertion into the eye. In use a portion of the insertion and injection device is inserted into the eye and the flexible bag is deployed out from an aperture in the inserted portion into the eye. Following deployment, the insertion and injection device injects an optical medium, such as a liquid, into the interior of the flexible bag, thereby inflating the bag. In an illustrative embodiment, the amount of medium being injected is selected so that the inflated bag provides the desired corrective power to the intraocular lens so formed. Following injection of the medium, the interconnection between the insertion and injection device and the interior of the flexible bag is broken and a seal is formed so as to keep the medium within the flexible bag interior.
Owner:THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
Method, device and computer program for selecting an intraocular lens for an aphakic eye that has previously been subjected to refractive surgery
Owner:LATKANY ROBERT ADAM
Foldable intraocular lens with adaptable haptics
A foldable low-compression intraocular lens configured for installation into the anterior chamber of a phakic, pseudophakic or aphakic eye, or a combination thereof. The lens is preferably rolled for insertion through a small corneal incision. Preferably, the implant comprises a resiliently flexible haptic body, an optical lens, and haptics that position the lens within the anterior chamber without excessive compressive forces. The disclosed lens uses refractive or diffractive optics, or a combination of both. One embodiment of the lens contains an optical lens that uses a multi-order diffractive (MOD) structure. An advantage of the disclosed lens is that a single sized device will fit any eye, thus the disclosed invention provides a “one-size-fits-all” intraocular lens.
Owner:VISION MEMBRANE TECH
Apparatus, system and method to account for spherical aberration at the iris plane in the design of an intraocular lens
The present invention includes at least an intraocular lens, and a system and method of customizing at least one characteristic for an intraocular lens, in accordance with a regression that indicates the postoperative spherical aberration at the iris plane of a patient aphakic eye, in order to obtain a desired postoperative condition. The lens, system and method of customizing at least one characteristic of an intraocular lens may include measuring at least one biometric parameter of an eye at a desired light level, determining a desired postoperative condition of the eye, obtaining a corneal spherical aberration and an anterior chamber depth of the eye, and empirically calculating a spherical aberration at an iris or pupil plane of the eye, based on a regression formula comprising at least the corneal spherical aberration and the anterior chamber depth, and cross products thereof.
Owner:AMO GRONINGEN
Method for manufacturing aphakic intraocular lens
A method of manufacturing an aphakic intraocular lens that is capable of ensuring every multi-focusing effect more securely, while reducing the impact of aperture changes and lens eccentricity. At least two reliefs whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of the lens, and with respect to every grating pitches of one relief having a maximum grating pitch among the reliefs set up in overlap, grating pitches of another relief are overlapped periodically in order to obtain a relief pattern, so that the resulting relief pattern is formed on a lens surface.
Owner:MENICON CO LTD
Two part "L"-shaped phakic IOL
A multi-part IOL which is insertable through an opening as small as about 1 mm without deforming the haptic, is described. This IOL may be used in the anterior chamber of the eye for phakic or aphakic lenses. After insertion of the haptic into the eye, any type of lens may be attached, especially by use of cleats. The haptic is a high modulus skeletal frame, and may be assembled with lower modulus material. An eyelet may be provided on the lens allowing a cleat on the haptic to firmly attach to the optic.
Owner:TEKIA
Determination of the effective lens position of an intraocular lens using aphakic refractive power
An ophthalmic method for determining a relationship between aphakic ocular power and estimated effective lens position (ELP) of an intraocular lens (IOL) to be implanted in a patient's eye. The method can be used to determine an estimate of the ELP of an IOL given the aphakic ocular power of the patient's eye, for example, without measurement of the corneal curvature or axial length of the patient's eye. The estimate of ELP can then be used to determine a suitable value of optical power for the IOL to be implanted in the patient's eye.
Owner:ALCON INC
Model of accommodative intraocular lens
InactiveUS20110191086A1Medical simulationAnalogue computers for chemical processesPatient needLens placode
The invention is directed to a model comprising a diagrammatical and geometric simplification of the components of the natural eye whose functionality is fundamental to the successful performance of a pseudo-aphakic accommodative lens. This model allows for a functional correlation of each component of the ophthalmic device with the patient needs. The eye model was developed to show the movement of the eye from the distance vision to the near vision positions through multiple phases of accommodative motion. The inventive model was developed using a mathematical series of formulas to calculate each of the components of focal accommodation in a human eye, quantify these, and construct the pictorial ramifications of such calculations. The inventive model presents an analysis of accommodative dynamics in the human eye with the natural lens in place. The inventive model also demonstrates the accommodative dynamics with a proprietary IOL in place of the natural lens and situated within the lens capsule.
Owner:ANEW IOL TECH
Biocompatible polymeric compositions for use in making anterior chamber intraocular lenses
Biocompatible polymers useful for making anterior chamber intraocular lenses (AC-IOL) are provided. The biocompatible polymers are generally composed of one or more acrylate monomers, crosslinked with at least one diacrylate ester and may include one or more additional components such as ultraviolet light and / or blue-violate light absorbing dyes. The AC-IOLs made using the biocompatible polymers disclosed herein are suitable for placement in phakic or aphakic eyes and are intended for refractive correction including myopia, hyperopia, presbyopia and astigmatisms.
Owner:JOHNSON & JOHNSON SURGICAL VISION INC
Method of manufacturing a diffraction lens other than an aphakic intraocular lens
A novel manufacturing method for a diffraction lens, whereby aperture and eccentricity effects can be suppressed and any multi-focusing effect can also be obtained in a more stable manner. A synchronous structure is set up where at least two reliefs whose first order diffracted lights give respective focal distances different from one another are set to overlap with each other in at least a part of an area in a radial direction of a diffraction lens, and with respect to every grating pitches of one relief having the maximum grating pitch among the reliefs set up in overlap, grating pitches of another relief are overlapped periodically; and the resulting relief pattern is formed on a surface of an optical material.
Owner:MENICON CO LTD
Devices and methods for measuring axial distances
Axial distances between ocular structures can be measured by focusing an optical unit on focus planes corresponding to the ocular structures and using the distance between focus planes to determine the distance between the ocular structures. The method is particularly useful during eye surgery, e.g., cataract surgery, where the distance between ocular structures, particularly an aphakic pupil, can be used to more accurately predict the effective lens position for an intraocular lens.
Owner:WF SYST
Haptic devices for intraocular lens
A haptic for fixation to, and manufacture in conjunction with, an intraocular lens to be implanted in the natural lens capsule of the human eye is disclosed. The haptic secures the lens in an appropriate position within the natural capsule so as to provide optimal visual acuity through the aphakic lens. The haptic is designed to position the lens neutrally, anteriorly or posteriorly within the lens envelope. The haptic has an anterior retention ring and a posterior retention ring.
Owner:ANEW IOL TECH
Artificial intraocular lens capsular sac adopting loop filaments for intraocular fixing
The invention relates to an artificial intraocular lens capsular sac adopting loop filaments for intraocular fixing, which comprises a capsular sac part and loop filaments for fixing. The capsular sac part is a transparent sac consisting of a front capsular membrane and a rear capsular membrane. The center of the front capsular membrane is provided with a hole. Small holes are also distributed on the front capsular membrane. More than one loop filaments for fixing are distributed in a central symmetry manner. Body parts of the loop filaments are provided with expanded parts. The artificial intraocular lens capsular sac can be used for treating aphakia without the intraocular lens capsular sac.
Owner:郝燕生 +1
Haptic devices for intraocular lens
ActiveUS20150327991A1Optimal focal flexibilityMitigate common post surgical problemIntraocular lensAphakiaPhakic iol
A haptic for fixation to, and manufacture in conjunction with, an intraocular lens to be implanted in the natural lens capsule of the human eye is disclosed. The haptic secures the lens in an appropriate position within the natural capsule so as to provide optimal visual acuity through the aphakic lens. The haptic is designed to position the lens neutrally, anteriorly or posteriorly within the lens envelope. The haptic has an anterior retention ring and a posterior retention ring.
Owner:ANEW IOL TECH
Ophthalmic devices and methods with application specific integrated circuits
Ophthalmic devices with dynamic electro-active elements offer variable optical power and / or depth of field that restore lost accommodation in individuals suffering from presbyopia or aphakia. An illustrative device senses physiological processes indicative of the accommodative response and actuates a dynamic electro-active element to provide the desired change in optical power and / or depth of field. The illustrative device includes two application-specific integrated circuits (ASICs) for processing the accommodative response and actuating the electro-active element: a high-voltage ASIC that steps up a low voltage from a power supply to a higher voltage suitable for actuating the electro-active element, and another ASIC that operates at low voltage (and therefore consumes little power) and controls the operating state of the high-voltage ASIC. Because each ASIC operates at the lowest possible voltage, the illustrative ophthalmic device dissipates less power than other ophthalmic devices.
Owner:ELENZA INC
Haptic devices for intraocular lenses
The present invention relates to a haptic for fixation to and manufactured with an intraocular lens so as to be embedded within the natural lens capsule of the human eye. The haptics hold the lens in place within the natural capsule such that better visual acuity is provided through the aphakic lens. The tip of the haptic is designed to position the lens naturally in the middle, anterior or posterior of the lens capsule. At the point of attachment of the ribbon to the solid end plate of the haptic, the haptic may be notched to facilitate pressing the lens into its syringe for insertion into the eye through an opening in the cornea. Once compressed and passed through the cornea, the implanted lens is secured by haptics within the lens capsule from which all possible natural lens material and epithelial cells have been removed.
Owner:ANEW OPTICS
Obtaining and Displaying Histogram and/or Confidence of Intra-Operative Refraction and/or IOL Power Recommendation
In order to take advantage of the real time nature of intra-operative refraction or wavefront aberrometry, and visually make the history of the measurements apparent to a surgeon, a histogram of frequency vs IOL results calculated from an IOL formula is computed and IOL suggestions being accumulated are displayed in a histogram. One embodiment is a means to present to a surgeon a histogram of intra-operative refractions. Another embodiment is to automatically and intra-operatively detect the aphakic phase of a cataract surgery to display a histogram of a recommended IOL power.
Owner:CLARITY MEDICAL SYST
Determination of the effective lens position of an intraocular lens using aphakic refractive power
Owner:ALCON INC
Artificial intraocular lens capsular sac adopting loop filaments for intraocular fixing
The invention relates to an artificial intraocular lens capsular sac adopting loop filaments for intraocular fixing, which comprises a capsular sac part and loop filaments for fixing. The capsular sac part is a transparent sac consisting of a front capsular membrane and a rear capsular membrane. The center of the front capsular membrane is provided with a hole. Small holes are also distributed onthe front capsular membrane. More than one loop filaments for fixing are distributed in a central symmetry manner. Body parts of the loop filaments are provided with expanded parts. The artificial intraocular lens capsular sac can be used for treating aphakia without the intraocular lens capsular sac.
Owner:郝燕生 +1
High definition and extended depth of field intraocular lens
Owner:Z OPTICS INC
Apparatus, system and method to account for spherical aberration at the iris plane in the design of an intraocular lens
An intraocular lens, and a system and method of customizing at least one characteristic for an intraocular lens, in accordance with a regression that indicates the postoperative spherical aberration at the iris plane of a patient aphakic eye, in order to obtain a desired postoperative condition. The lens, system and method of customizing at least one characteristic of an intraocular lens may include measuring at least one biometric parameter of an eye at a desired light level, determining a desired postoperative condition of the eye, obtaining a corneal spherical aberration and an anterior chamber depth of the eye, and empirically calculating a spherical aberration at an iris or pupil plane of the eye, based on a regression formula comprising at least the corneal spherical aberration and the anterior chamber depth, and cross products thereof.
Owner:AMO GRONINGEN
Haptic devices for intraocular lens
ActiveUS9439755B2Reduce the amount of clearanceReducing cell migrationIntraocular lensImplanted lensAphakia
The inventive is directed to a haptic for fixation to, and manufacture in conjunction with, an intraocular lens to be implanted in the natural lens capsule of the human eye. The haptic secures the lens in an appropriate position within the natural capsule so as to provide optimal visual acuity through the aphakic lens. The haptic ends are designed to position the lens neutrally, anteriorly or posteriorly within the lens envelope. At the connection point of the ribbon portion to the solid end plate of the haptic, the haptic may be notched to facilitate compressing the lens into its injector for insertion into the eye through an incision in the cornea. Once compressed and passed through the cornea, the implanted lens will be secured by the haptics in the lens capsule once all possible natural lens material and epithelial cells have been removed.
Owner:ANEW IOL TECH
Device for implanting lens into eye
InactiveCN1188092CCooperate accuratelyPrevent invasionEye surgeryDiagnosticsIntraocular lens insertionImplanted lens
Owner:杉浦毅
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