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NL2009596A - Accommodating intraocular lens with combination of base plates. - Google Patents

Accommodating intraocular lens with combination of base plates. Download PDF

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Publication number
NL2009596A
NL2009596A NL2009596A NL2009596A NL2009596A NL 2009596 A NL2009596 A NL 2009596A NL 2009596 A NL2009596 A NL 2009596A NL 2009596 A NL2009596 A NL 2009596A NL 2009596 A NL2009596 A NL 2009596A
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Netherlands
Prior art keywords
lens
optical
space
combination
eye
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NL2009596A
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Dutch (nl)
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NL2009596C2 (en
Inventor
Aleksey Nikolaevich Simonov
Michiel Christiaan Rombach
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Akkolens Int Bv
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1648—Multipart lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1624—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside
    • A61F2/1632—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus having adjustable focus; power activated variable focus means, e.g. mechanically or electrically by the ciliary muscle or from the outside for changing radial position, i.e. perpendicularly to the visual axis when implanted
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1618—Multifocal lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses or corneal implants; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
    • A61F2002/1682—Intraocular lenses having supporting structure for lens, e.g. haptics having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses

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  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Description

Accommodating intraocular lens with combination of base plates
Accommodating lenses generally require mechanical driving, for example pushing-and-pulling, by driving means in the eye. Such driving achieves either a change in shape of the optics, a a change in radius of at least one lens to affect the focal power of the lens and shift focus, shift the image plane, or, alternatively, such driving achieves a change in position of at least one optics versus the optical axis, being a shift along the optical axis or, alternatively, a shift perpendicular to the optical axis, or, alternatively, a combination of said shifts.
Driving means can be, for example, the ciliary muscle of the eye which also drives accommodation of the natural lens of the eye, with the ciliary muscle being the driving means of preference in the context of the present document. However, driving means are not restricted to the ciliary muscle only because accommodation can also be driven by the sulcus, the iris and other components of the eye or, alternatively, by pressure of liquids in the eye, or, alternatively, by mechanical means implanted in the eye, for example by micro-electronic-mechanical systems, MEMS components.
This invention as described in this document relates to accommodating intraocular lens constructions with variable optical power. The lenses comprise at least one optics for a lens of variable optical power which optics comprises at least one optical component. Disclosures in the present document are, firstly, two, flexibly connected, base plates, to which the various optical and mechanical components are fitted, which optical base plates are positioned at multiple distances from each other, at different spacing from each other, depending on the area of the lens construction, for example, a different spacing of the optical area compared to the area of the haptics, and, secondly, haptics with elevated flanges which elevation prevent contact between the anterior surface of the lens and the iris, which, in turn, prevents release of pigment particles from the iris.
Figure 1 depicts a side cross section of a lens construction with inter-haptics-space which changes gradually. The lens construction comprises an anterior base plate 1, and a posterior base plate 2, which plates are connected at the connection point 3, and which base plates form the flexible open component of the haptics spring 4, and the inflexible solid component of the haptics spring 5, and which base plates are spaced at an inter optics-space 6, which is distinctly different from the, in this example, variable, intra-haptics-space 7, which, in this example, shows as an open wedge-shape space in the side view of the lens construction. The lens construction in this example is fitted with a flange 8, and anchor, for positioning the lens construction in the sulcus of the eye, which flange is positioned at an elevation 9, from the anterior base plate 1.
Figure 2 depicts a cross section of a lens construction with inter-haptics-space which changes step-wise. The lens construction comprises an anterior base plate 1, and a posterior base plate 2, which plates are connected at the connection point 3, and which base plates form the flexible open component of the haptics spring 4, and the inflexible solid component of the haptics spring 5, and which base plates are spaced at an interoptics-space 6, which is distinctly different from the, in this example, step-wise, intra-haptics-space 10, which, in this example, shows as a step-wise space in side view of the lens construction. The lens construction in this example is fitted with a flange 8, for positioning the lens construction in the sulcus of the eye, which flange is positioned at an elevation 9, from the anterior base plate 1.
Figure 3 depicts a top view of such a lens construction. For explanation of lens construction features refer to Figures 1-2. Various optics components can be added to the basic lens construction.
All Figures: A lens construction can, for example, comprise a weak spherical surface 11, to provide a break of the planar anterior surface, and, for example, two free-form optical surfaces 12, 13, to provide variable optical power for accommodation, which surfaces provide optics of variable optical power when shifted in a direction 14, perpendicular to the optical axis and which free-form surfaces can include additional variable optical power for correction at least one undesired variable aberration and additional fixed optics for correction of refraction 15, and additional fixed optics for correction of at least one additional fixed optical disorder which combination provides correction of any fixed or variable aberration of any optical order of the eye in combination with restoration of accommodation of the eye.
An accommodating intraocular lens construction as disclosed in the present document comprises, firstly, a combination of, at least two, connected, base plates adapted to provide a basic mechanical framework to which additional mechanical and optical components can be fitted, which combination of base plates provides the inter-base-plate-space, meaning the distance between the base plates. Such construction also comprises, secondly, a combination of at least two optics components, with at least one such optics component fitted to each base plate, with the combination adapted to provide a lens of variable optical power of which the degree of optical power depends on the position of at least one optics component, in a plane perpendicular to the optical axis, relative to at least one other optics component, with the inter-base-plate-space providing at least one inter-optics-space, meaning the distance between the base plates in the area of the optics specifically. Generally such lens also comprises at least one lens of fixed optical power adapted to correct for the basic refraction of the aphakic eye.
Such construction further comprises at least one haptic, with at least one anchor to provide positioning of the lens in the eye, with the haptic also comprising at least one haptic spring to provide translation of movement of driving means in the eye to at least one of the optical elements, with the inter-base-plate space providing intra-haptics-space, meaning the distance between the base plates in the area of the haptics specifically. The shape of at least one of the base plates provides an inter-optics-space which is different from the inter-haptics-space. For example, the inter-optics space can be large compared to the inter-haptics-space, providing a lens construction which tapers outwards. A main aim for such construction is to provide a lens construction small in thickness at the rim of the lens construction is of importance to create space for the zonulae and capsular bag behind the lens. Without such space the zonulae can push the lens construction in an anterior direction which will lead to misfunctioning of the lens and to damage to the iris and to pigment release from the iris.
The combination of base plates can provide inter-haptics-space which changes radially, along the radius, from the centre of the lens construction outwards to the rim. Such change can be a gradual radial change, creating an open wedge-shape space in side view of the lens construction, alternatively, such change can be a stepwise radial change creating a step-wise space in side view of the lens construction or, alternatively, by a combination of gradual radial change and stepwise radial change, with the type of change depending on lens construction design such a thickness of the base plates and on the mechanical forces acting on the outer rim of the lens construction haptics. Note that the inter-haptic-space generally gradually decreases in size in a radial direction, or decreases in size in steps in a radial direction, or decreases in size in radial direction by a combination of gradual change and stepwise change. So, the combination of base plates can provide at least one inter-haptics-space which tapers outwards, meaning an inter-haptics-space which gradually decreases in size in a radial direction, or, alternatively, can provide at least one inter-haptics-space which steps outwards, meaning inter-haptics-space which decreases in size in steps in a radial direction, or, alternatively, can provide at least one inter-haptic-space which is a combination a gradual change in a radial direction and a stepwise change in a radial direction with a decreases in size of the inter-haptic-space in radial direction.
A haptic spring can be a combination of two haptics components, a flexible oblong open component, connected to the rim of a first optical element and an inflexible oblong solid component connected to the rim of the second optical element with the oblong elements connected along the rim at the inside of the open, oblong, opening of the component. Such haptic spring can, when compressed, shift the base plate to which the flexible component is attached relative to the base plate to which the solid component is attached. A construction can also comprises one haptic which is a combination of two inflexible oblong solid components with one solid component connected to the rim of the first optical element and the second solid component connected to the rim of the second optical element, with the haptic anchor positioned opposite the haptic spring. A lens construction with two, opposite, flexible haptics can shift two base plates simultaneously in a direction largely parallel to the direction of the moving force, which is largely perpendicular to the optical axis, while a lens construction with only one flexible haptic and one solid haptic can only shift one of the base plates, namely the base plate to which the flexible oblong open component is attached. The lens construction can include a single optics component, fitted to one base plate, which component provides a lens of variable optical power of which the degree of optical power depends on the position of the optical component relative to the optical axis in a plane perpendicular to said optical axis. The other base plate can comprise no optics, or optics not related to variable lenses, or supporting optics for the variable lens, as in, for example, US20080312738, which construction comprises a multifocal lens on one element and a prism on the other element. Such single optics component can be a multifocal lens adapted to provide said variable optical power WO201009593 8, which multifocal lens can be a bifocal lens, with, for example, optics as disclosed in, for example, US20080312738.
Alternatively, the lens construction can comprise at least two haptic springs, each a combination of two haptics components, a flexible oblong open component, connected to the rim of a first optical element and an inflexible oblong solid component connected to the rim of the second optical element with one haptic spring positioned opposite the other haptic spring, a construction adapted to provide shift of two base plates simultaneously.
The lens construction can comprise at least two free-form optics components, at least one such component fitted to each base plate, with the free-form optics component having a shape such that a combination of at least two optical components is adapted to provide a lens of variable optical power of which the degree of optical power depends on the position of one component relative to the other component in a direction perpendicular to the optical axis, and of which the degree of optical power varies with shift of one component relative to the other component, or, alternatively, of which the degree of optical power varies with rotation of one component relative to the other component. The variable lens can comprises a combination of at least two free-form optics components such that the combination of the surfaces provides a variable lens of which the optical power depends on the specific relative position of the free-form components. Free-form optical surfaces, surfaces without rotational symmetry, can be designed to achieve variable lenses, and at least one such free-form surface must be fitted to each base plate. Such combination can be designed by inclusion of adapted free-form cubic optical surfaces and, alternatively, by inclusion of at least two chiral free-form optical surfaces, but such surfaces are not restricted to said cubic and chiral surfaces. The lens construction can also comprise at least two optics component with such a shape that a combination of at least two optical components is adapted to provide a lens of variable optical power of which the degree of optical power depends on the position of one component relative to the other component in a direction perpendicular to the optical axis. Such intraocular lens of variable optical power of which the degree of optical power varies with shift of one component relative to the other component is disclosed in, for example, WO 2005084587, US 2010280609 and US 2008215146 or, alternatively, rotation of one component relative to the other component, which can be symmetrical rotation around an axis in the centre of the lens, as in, for example, WO2011102719, or asymmetrical rotation around an axis at the rim of the lens, as in US2011112638, which provides rotational movement of two optical elements not unlike movement in a ‘Chinese fan’.
The construction preferably comprises a haptic rim which is a flange adapted to provide anchoring of the lens construction in the eye, for example, in the sulcus of the eye. The flange preferably has an elevation adapted to provide space between of the anterior surface of the lens construction and the iris of the eye to prevent strafing of the iris by the anterior surface of the lens.
The lens construction can be adapted for a position in the capsular bag of the eye or, alternatively, outside of the capsular bag of the eye, for example, in the sulcus of the eye, or, alternatively, in the iris of the eye. At least one haptic can be coupled to the ciliary muscle of the eye such that the haptic provides transfer of a degree of movement from the ciliary muscle to the at least one optical component. WO 2011062486, or, alternatively, at least one haptic can be coupled to a micro-electro-mechanical system in the eye such that the haptic provides transfer of a degree of movement from the micro-electro-mechanical system to the at least one optical component. In such accommodating lenses the haptic is coupled to driving means in the eye such that the haptic provides transfer of a degree of movement from the driving means to the variable multifocal optics, which driving means can be any driving means. Accommodating lenses are, generally, driven by the ciliary muscle of the eye, either by the muscle directly or by the muscle via the capsular bag from which the natural lens was removed during, for example, cataract surgery, so the haptic can be coupled to the ciliary muscle of the eye such that the the haptic provides transfer of a degree of movement from the ciliary muscle to the variable multifocal optics. However, the driving force can also be generated by artificial driving means, for example, an additional component of the lens construction, for example, a micro-electro-mechanical-system, MEMS, component. Such component can, for example, amplify a relatively small movement of a natural component of the eye into a relatively large movement of at least one optical element, so, the haptic can also be coupled to a micro-electro-mechanical system in the eye such that the haptic provides transfer of a degree of movement from the micro-electro-mechanical system to the variable multifocal optics.
The lens construction can also comprises additional fixed optics for correction of refraction, meaning optics with fixed optical power adapted to provide correction of refractive error of the eye with refractive error meaning the error which remains after surgical removal of the natural lens, the lens construction can also can also comprise a combination of a lens of variable optical power for accommodation and a lens of variable optical power for correction of at least one variable undesired aberration as in, for example, US 2010094413, and the lens construction can comprise additional fixed optics for correction of refraction and additional fixed optics for correction of at least one additional optical disorder which combination of optics is adapted to provide correction of any aberration of any optical order of the eye in combination with restoration of accommodation of the eye. So, the accommodating intraocular lenses disclosed in the present document can include a lens of fixed optical power adapted to provide correction of the refractive error of the eye which results from the removal of the natural lens. Additional optical surfaces can be added to correct for any number of additional optical disorders of the eye including, for example, astigmatisms, trefoils and comas. The loss of accommodation of the eye is a variable disorder of the eye and the lenses disclosed in the present document is mainly intended to restore the accommodation of the eye. So, the optics can also include additional fixed optics for refraction, meaning optics with fixed optical power adapted to provide correction of refractive error of the eye with refractive error meaning the error which remains after surgical removal of the natural lens. Additionally, the lens can also include additional fixed optics for at least one additional optical disorder with additional optical disorder meaning any optical aberration of any order. Preferably the lens includes a combination of variable multifocal optics, additional fixed optics for refraction and additional fixed optics for at least one additional fixed optical disorder which combination is adapted to provide correction of any fixed or variable aberration of any optical order of the eye in combination with restoration of accommodation of the eye.
So a lens construction can include an, advanced, optics combination comprising optics for variable optical power for accommodation, and, a lens of variable optical power for correction at least one variable undesired aberration, and, additional fixed optics for correction of refraction, and, additional fixed optics for correction of at least one additional fixed optical disorder which combination is adapted to provide correction of any fixed or variable aberration of any optical order of the eye in combination with restoration of accommodation of the eye.

Claims (20)

1. Accommoderende intra-oculaire lensconstructie omvattende: - een combinatie van ten minste twee verbonden basisplaten, (1,2), die is ingericht voor het verschaffen van een fundamenteel mechanisch kader, waarop extra mechanische en optische componenten kunnen worden aangebracht, waarbij de combinatie van basisplaten ten minste één ruimte tussen de basisplaten vormt, waarbij de ruimte tussen de basisplaten de afstand tussen de basisplaten aanduidt, - een combinatie van ten minste twee optische componenten (12,13), waarbij ten minste één dergelijke optische component op elke basisplaat is aangebracht, waarbij de combinatie is ingericht voor het verschaffen van een lens van variabel optisch vermogen, waarvan de mate van optisch vermogen afhangt van de positie van ten minste één optische component ten opzichte van ten minste één andere optische component in een vlak loodrecht op de optische as, - ten minste één lens (15) met een vast optisch vermogen, die is ingericht voor correctie van de basisrefractie van het afakische oog, - waarbij de ruimte tussen de basisplaten is ingericht voor het verschaffen van ten minste één interoptische ruimte (6), waarbij interoptische ruimte de afstand tussen de basisplaten in het gebied van de optische middelen aanduidt, - ten minste één haptic, omvattende ten minste één anker (8), dat is ingericht voor positionering van de lens in het oog, waarbij het haptic ook ten minste één haptische veer omvat die is ingericht voor het overdragen van een beweging van stuurmiddelen in het oog aan ten minste één van de optische elementen, - waarbij de ruimte tussen de basisplaten is ingericht voor het verschaffen van ten minste één interhaptische ruimte (7), waarbij de interhaptische ruimte de afstand tussen de basisplaten in het gebied van het haptic aanduidt, met het kenmerk, dat de vorm van ten minste één van de basisplaten is ingericht voor het verschaffen van een interoptische ruimte (6) die verschillend is van de interhaptische ruimte (7).A accommodating intraocular lens construction comprising: - a combination of at least two connected base plates, (1,2), which is adapted to provide a basic mechanical framework on which additional mechanical and optical components can be mounted, the combination of base plates forming at least one space between the base plates, the space between the base plates indicating the distance between the base plates, - a combination of at least two optical components (12, 13), at least one such optical component being on each base plate arranged, the combination adapted to provide a lens of variable optical power, the degree of optical power of which depends on the position of at least one optical component relative to at least one other optical component in a plane perpendicular to the optical axis, - at least one lens (15) with a fixed optical power, which is adapted for co correction of the basic refraction of the aphakic eye, - wherein the space between the base plates is arranged to provide at least one interoptic space (6), wherein interoptic space indicates the distance between the base plates in the area of the optical means, at least one haptic, comprising at least one anchor (8), which is adapted to position the lens in the eye, the haptic also comprising at least one haptic spring adapted to transmit a movement of control means in the eye to at least one of the optical elements, wherein the space between the base plates is adapted to provide at least one interhaptic space (7), wherein the interhaptic space indicates the distance between the base plates in the region of the haptic, characterized that the shape of at least one of the base plates is adapted to provide an interoptic space (6) that is different from the interhaptic space (7). 2. Lensconstructie volgens conclusie 1, met het kenmerk dat de combinatie van basisplaten is ingericht om ten minste één interhaptische ruimte (7) te verschaffen, welke ruimte naar buiten taps toeloopt, hetgeen een interhaptische ruimte aanduidt, waarvan de grootte geleidelijk in een radiale richting afneemt.Lens construction according to claim 1, characterized in that the combination of base plates is arranged to provide at least one interhaptic space (7), which space tapers outwards, which indicates an interhaptic space, the size of which is gradually in a radial direction decreases. 3. Lensconstructie volgens conclusie 1, met het kenmerk dat de combinatie van basisplaten is ingericht om ten minste één interhaptische ruimte (7) te verschaffen, welke ruimte naar buiten trapsgewijs verloopt, hetgeen een interhaptische ruimte aanduidt, waarvan de grootte in een radiale richting in stappen afneemt.3. Lens construction as claimed in claim 1, characterized in that the combination of base plates is adapted to provide at least one interhaptic space (7), which space extends stepwise outwards, which indicates an interhaptic space, the size of which in a radial direction steps. 4. Lensconstructie volgens één van de conclusies 1-3, met het kenmerk dat de combinatie van basisplaten is ingericht voor het verschaffen van ten minste één interhaptische ruimte (7), welke ruimte een combinatie is van een geleidelijke verandering in een radiale richting en een trapsgewijze verandering in een radiale richting, met een afname qua grootte van de interhaptische ruimte in radiale richting.Lens construction as claimed in any of the claims 1-3, characterized in that the combination of base plates is adapted to provide at least one interhaptic space (7), which space is a combination of a gradual change in a radial direction and a stepwise change in a radial direction, with a decrease in the size of the interhaptic space in a radial direction. 5. Lensconstructie volgens één van de conclusies 1-5, met het kenmerk dat de constructie ten minste één langwerpige haptische veer omvat die ten minste één buigzame open langwerpige veercomponent (4) en ten minste één vaste gesloten langwerpige veercomponent (5) omvat, waarbij de haptische veer is ingericht om een translatiebeweging te verschaffen in een richting hoofdzakelijk loodrecht op de optische as van ten minste één component in het oog tot een beweging van ten minste één van de basisplaten in een richting hoofdzakelijk loodrecht op de optische as.Lens construction according to any of claims 1-5, characterized in that the construction comprises at least one elongated haptic spring which comprises at least one flexible open elongated spring component (4) and at least one fixed closed elongated spring component (5), wherein the haptic spring is adapted to provide a translational movement in a direction substantially perpendicular to the optical axis of at least one component in the eye to a movement of at least one of the base plates in a direction substantially perpendicular to the optical axis. 6. Lensconstructie volgens één van de conclusies 5, met het kenmerk dat de combinatie van ten minste twee optische componenten één enkele multifocale lens omvat die is ingericht om ten minste twee scherpe beelden in ten minste twee beeldvlakken van ten minste twee objecten in ten minste twee objectvlakken te verschaffen6. Lens construction as claimed in any of the claims 5, characterized in that the combination of at least two optical components comprises a single multifocal lens which is arranged to have at least two sharp images in at least two image planes of at least two objects in at least two to provide object faces 7. Lensconstructie volgens conclusie 6, met het kenmerk dat de enkele multifocale lens een bifocale lens is die is ingericht om twee scherpe beelden in ten minste twee beeldvlakken van twee objecten in ten minste twee objectvlakken te verschaffen.Lens construction according to claim 6, characterized in that the single multifocal lens is a bifocal lens that is arranged to provide two sharp images in at least two image planes of two objects in at least two object planes. 8. Lensconstructie volgens één van de conclusies 5-7, met het kenmerk dat de constructie een combinatie omvat van één langwerpige haptische veer en één enkele multifocale lens, welke combinatie is ingericht om het oog te voorzien van een lens met een variabel brandpunt door het veranderen van de positie van de enkele multifocale lens in een vlak loodrecht op de optische as.8. Lens construction as claimed in any of the claims 5-7, characterized in that the construction comprises a combination of one elongated haptic spring and a single multifocal lens, which combination is adapted to provide the eye with a lens with a variable focal point through the changing the position of the single multifocal lens in a plane perpendicular to the optical axis. 9. Lensconstructie volgens één van de conclusies 1-5, met het kenmerk dat de constructie een combinatie omvat van twee haptische veren die bij overliggende einden, zodanig aan de rand van de basisplaten zijn aangebracht, dat de combinatie van haptische veren is ingericht om beweging te verschaffen van beide basisplaten in tegenovergestelde richtingen langs dezelfde as die zich uitstrekt in een richting loodrecht op de optische as.9. Lens construction as claimed in any of the claims 1-5, characterized in that the construction comprises a combination of two haptic springs which are arranged at opposite ends on the edge of the base plates such that the combination of haptic springs is adapted to move to provide both base plates in opposite directions along the same axis that extends in a direction perpendicular to the optical axis. 10. Lensconstructie volgens conclusie 9, met het kenmerk dat de constructie ten minste twee vrijgevormde grotendeels kubische optische componenten omvat, waarvan tenminste één component is aangebracht op elke basisplaat, waarbij de vrijgevormde optische component een zodanige vorm heeft dat een combinatie van ten minste twee optische componenten is ingericht om een lens van variabel optisch vermogen te verschaffen, waarvan de mate van optisch vermogen afhangt van de positie van één component ten opzichte van de andere component in een richting loodrecht op de optische as.Lens construction as claimed in claim 9, characterized in that the construction comprises at least two free-formed largely cubic optical components, at least one of which is arranged on each base plate, the free-formed optical component having such a shape that a combination of at least two optical Components is arranged to provide a lens of variable optical power, the amount of optical power of which depends on the position of one component relative to the other component in a direction perpendicular to the optical axis. 11. Lensconstructie volgens conclusie 10, met het kenmerk dat de lensconstructie is ingericht om een lens van variabel optisch vermogen te verschaffen, waarvan de mate van optisch vermogen varieert met de verschuiving van één component ten opzichte van de andere component.Lens construction as claimed in claim 10, characterized in that the lens construction is adapted to provide a lens of variable optical power, the amount of optical power of which varies with the shift of one component relative to the other component. 12. Lensconstructie volgens conclusie 10, met het kenmerk dat de lensconstructie is ingericht om een lens van variabel optisch vermogen te verschaffen, waarvan de mate van optisch vermogen varieert met de rotatie van één component ten opzichte van de andere component.12. A lens construction according to claim 10, characterized in that the lens construction is adapted to provide a lens of variable optical power, the amount of optical power of which varies with the rotation of one component relative to the other component. 13. Lensconstructie volgens één van de voorgaande conclusies, met het kenmerk dat de constructie een haptische rand omvat die een flens (8) vormt, die is ingericht om verankering van de lensconstructie in het oog te verschaffen.Lens construction according to one of the preceding claims, characterized in that the construction comprises a haptic edge which forms a flange (8) which is adapted to provide anchoring of the lens construction in the eye. 14. Lensconstructie volgens conclusie 13, met het kenmerk dat de flens een verhoging (9) heeft die is ingericht om een ruimte te verschaffen tussen het voorste oppervlak van de lensconstructie en de iris van het oog.Lens construction according to claim 13, characterized in that the flange has a raised portion (9) which is arranged to provide a space between the front surface of the lens construction and the iris of the eye. 15. Lensconstructie volgens één van de conclusies 1-14, met het kenmerk dat de lensconstructie is ingericht voor een positie in de kapselzak van het oog.Lens construction as claimed in any of the claims 1-14, characterized in that the lens construction is adapted for a position in the capsule bag of the eye. 16. Lensconstructie volgens één van de conclusies 1-14, met het kenmerk dat de lensconstructie is ingericht voor een positie in de sulcus van het oog.A lens construction according to any one of claims 1-14, characterized in that the lens construction is adapted for a position in the sulcus of the eye. 17. Lensconstructie volgens één van de conclusies 1-16, met het kenmerk dat ten minste één tastelement zodanig is gekoppeld aan de ciliaire spier van het oog dat het tastelement de overdracht verschaft van een mate van beweging van de ciliaire spier naar de ten minste ene optische component.A lens construction according to any one of claims 1-16, characterized in that at least one sensing element is coupled to the ciliary muscle of the eye such that the sensing element provides the transfer of a degree of movement of the ciliary muscle to the at least one optical component. 18. Lensconstructie volgens één van de conclusies 1-16, met het kenmerk dat ten minste één tastelement zodanig is gekoppeld aan een micro-elektromechanisch systeem in het oog, dat het tastelement de overdracht verschaft van een mate van beweging van het micro-elektromechanische systeem naar de ten minste ene optische component.A lens construction according to any one of claims 1-16, characterized in that at least one sensing element is coupled to a micro-electromechanical system in the eye such that the sensing element provides the transfer of a degree of movement of the micro-electromechanical system to the at least one optical component. 19. Lensconstructie volgens één van de conclusies 1-18, met het kenmerk dat de lensconstructie ook extra vaste optische middelen omvat voor het corrigeren van refractie, hetgeen optische middelen omvat, die zijn ingericht voor correctie van een refractieve fout van het afakische oog.A lens structure according to any of claims 1-18, characterized in that the lens structure also comprises additional fixed optical means for correcting refraction, which comprises optical means adapted to correct a refractive error of the afakic eye. 20. Lensconstructie volgens één van de conclusies 1-18, met het kenmerk dat de lensconstructie een optische combinatie omvat, die is voorzien van optische middelen voor een variabel optisch vermogen voor accommodatie en een lens met een variabel optisch vermogen voor correctie van ten minste één variabele ongewenste afwijking, extra vaste optische middelen voor correctie van de breking en extra vaste optische middelen voor correctie van ten minste één extra optische stoornis, welke combinatie is ingericht om correctie te verschaffen van elke afwijking van elke vaste of variabele optische orde van het oog in combinatie met herstel van de accommodatie van het oog.Lens construction as claimed in any of the claims 1-18, characterized in that the lens construction comprises an optical combination which is provided with optical means for a variable optical power for accommodation and a lens with a variable optical power for correction of at least one variable unwanted aberration, extra fixed optical means for correction of refraction and extra fixed optical means for correction of at least one additional optical disorder, which combination is arranged to provide correction of any deviation of each fixed or variable optical order of the eye in combination with restoration of accommodation of the eye.
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NL2027301A (en) 2020-01-13 2021-08-17 Akkolens Int B V Mechanical means for accommodative intraocular lens

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