EP3352706A1 - Lentille intraoculaire - Google Patents
Lentille intraoculaireInfo
- Publication number
- EP3352706A1 EP3352706A1 EP16770705.8A EP16770705A EP3352706A1 EP 3352706 A1 EP3352706 A1 EP 3352706A1 EP 16770705 A EP16770705 A EP 16770705A EP 3352706 A1 EP3352706 A1 EP 3352706A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lens
- primary
- intraocular
- intraocular lens
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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, corneal implants; Implanting instruments specially adapted therefor; 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, corneal implants; Implanting instruments specially adapted therefor; 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
-
- 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, corneal implants; Implanting instruments specially adapted therefor; 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, corneal implants; Implanting instruments specially adapted therefor; 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
- A61F2/1654—Diffractive 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, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
- A61F2/16—Intraocular lenses
- A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
-
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
Definitions
- Intraocular lens Intraocular lens
- the present invention relates to an intraocular lens comprising a removable optical portion.
- IOL intraocular lens
- a recent major improvement in this area has been the use of high performance multifocal implants as described for example in WO 201 1/092169.
- the light intensity reaching the lens is distributed according to several focal lengths: for example, in 3 focal lengths, one allowing near vision, the second allowing vision at an intermediate distance and the third for long distance viewing. .
- Multifocal lenses are often implanted in relatively young presbyopic patients who have healthy retinas.
- Multifocal lenses are intrinsically associated with a lower contrast resulting from the distribution of energy between two or more focal points.
- the retina gradually loses its sensitivity, so that the intensity distributed at each focal point becomes insufficient for a comfortable vision.
- APD macular degeneration
- multifocal lenses are associated with a risk of non-optimal vision because of the superimposition of the images coming from the first, second and possibly third focal length.
- multifocal lenses are associated with a risk of non-optimal vision because of the superimposition of the images coming from the first, second and possibly third focal length.
- posterior segment surgery in patients implanted with multifocal lenses may be difficult due to image distortion of the retina through the lens.
- the patent application WO 201 1/065986 discloses an adjustable multifocal lens comprising a multifocal base lens and a secondary multifocal lens having a negative optical power. When these two lenses are combined they jointly produce a monofocal lens. This makes it possible to find the optimum contrast normally obtained for a monofocal lens. Nevertheless, this method has the disadvantage that it is extremely difficult to correctly align the two optics in an intraocular procedure, which leads to additional optical aberrations. In addition, during placement of the secondary lens, a protein biofilm has generally already formed on the surface of the initial lens, further causing further degradation of the optical quality of the assembly.
- Patent application WO 2005/000551 discloses an adjustable intraocular lens comprising a primary lens and a secondary lens. These lenses are intended to be assembled in the patient's eye by successive insertion and in vivo positioning during one or more operations, with all the disadvantages associated with these multiple interventions. Again, the in vivo assembly represents a risk of misalignment, and the presence of biological fluids between the two lenses during assembly also presents a risk of occurrence of optical defects.
- the present invention aims to provide a multifocal intraocular lens that can be subsequently modified into a monofocal intraocular lens according to a less traumatic method than the complete replacement of said lens.
- the use of the device further seeks to limit the risks associated with multiple insertions, an assembly in the eye and / or explantation of an entire intraocular lens. These risks are mainly related to bacterial contamination, residual astigmatism, rupture of the capsular bag, all of which are traumatic for the patient.
- the present invention relates to an intraocular lens comprising:
- a primary lens having a first focal length, a first face and a second face
- a secondary lens having at least two focal lengths, a first face and a second face, the second face of said secondary lens conforming to the first face of said primary lens and said secondary lens being attached to said primary lens by peelable adhesive forces on the essential of his second face.
- the primary lens is a refractive lens, preferably, said refractive lens allows a clear view at long distance.
- the primary lens or the secondary lens comprises an O-ring face or not with compensation for corneal spherical abbinations.
- the secondary lens is adapted to be covered by the rhexis of the capsular bag, allowing the explantation of the secondary lens in case of problem within 6 months of its implantation, that is to say before the fusion. complete the posterior and anterior portion of the capsular bag.
- the secondary lens is not covered by the rhexis of the capsular bag, which allows the explantation of the secondary lens in case of problems at any time after implantation.
- the secondary lens is a diffractive lens having an x-order having an infinite focal length and at least an x + 1 order having a finite focal length.
- This diffractive lens is preferably in the form of a thin meniscus having a central thickness less than 500 ⁇ " ⁇ , preferably less than 200 ⁇ " ⁇ .
- the combination of the primary lens and the secondary lens forms a multifocal lens whose optical characteristics make it possible to obtain a sharp image at great distance superimposed on a sharp image at short distance.
- an additional focal distance makes it possible to obtain a net image at intermediate distance.
- the materials forming the lenses have sufficient intrinsic adhesion to maintain the integrity of the lens in aqueous medium and during implantation.
- the materials forming the primary lens and the secondary lens comprise at least one copolymer, the copolymer included in the primary lens comprising a monomer that is common with the copolymer included in the secondary lens.
- This common monomer makes it possible to modulate the intrinsic adhesion between the two lenses: the closer the compositions of the two polymers are, the higher the adhesion is.
- the common monomer is preferably an acrylate, advantageously chosen from the group consisting of 2-hydroxyethylmethylacrylate, methylmethacrylate, ethylmethylacrylate, hydroxyhexylmethacrylate, ethoxyethylmethacrylate, 2-phenylethylacrylate, ethylacrylate; 2- phenylethyl methacrylate, 2,2,2-trifluoroethyl methacrylate, ethylene glycol phenyl ether acrylate, butyl acrylate, dimethyldiphenyl siloxane and dimethyl siloxane.
- an acrylate advantageously chosen from the group consisting of 2-hydroxyethylmethylacrylate, methylmethacrylate, ethylmethylacrylate, hydroxyhexylmethacrylate, ethoxyethylmethacrylate, 2-phenylethylacrylate, ethylacrylate; 2- phenylethyl methacrylate, 2,
- the materials used for both the primary lens and the secondary lens preferably form a hydrogel in an aqueous medium.
- the secondary lens preferably comprises means for centering the secondary lens on the primary lens.
- FIG. 1 represents conventional lenses that can receive a secondary lens to form an intraocular implant according to the invention.
- FIG. 2 represents an example of a lens according to the invention before
- FIG. 4 represents examples of secondary lenses compatible with the corresponding conventional models of FIG. 1.
- the 4-A configuration is compatible with explantation within 6 months after implantation of the set.
- the 4-B configuration is compatible with explantation every moment after implantation.
- Figure 5 shows the evolution of the peel strength for different primary and secondary lens material compositions tested in the examples. The corresponding samples are described in Table 1.
- Figure 6 shows the forces required for the insertion of the intraocular lenses of the examples.
- the present invention relates to a multifocal system of intraocular lenses comprising a conventional monofocal primary lens and a removable multifocal secondary lens. Said primary and secondary lenses being assembled prior to their storage and sterilization packaging via peelable adhesive forces. By peelable, is meant here a membership allowing a Vietnamese lenses by adhesive rupture.
- adhesion obtained by means of an adhesive it will be chosen so that the adhesive has a higher affinity on the surface of the removable multifocal lens relative to its affinity to the mono-focal lens, with or without correction of corneal astigmatism. In this way, during the withdrawal of the multifocal lens, the adhesive remains on it, thus avoiding degrading the optical characteristics of the monofocal lens.
- the adhesion between the two lenses is advantageously obtained by an intrinsically reversible interfacial interaction with the chemical compositions of their constituent materials.
- the multi-component intraocular lens of the invention is implantable in a single insertion step in the eye, allowing the transformation of the multifocality into monofocality at each moment after the surgery by a simple withdrawal of the element. multifocal through a very small incision less traumatic than the complete replacement of a traditional multifocal lens.
- the primary lens is a conventional lens allowing a view from a distance. It may furthermore comprise or not an aspheric, toric or chromatic component to compensate for this type of aberration, depending on the patient considered. It may be a lens intended for implantation in the capsular bag, in the sulcus or in the anterior chamber of the eye. Examples of conventional primary lens models are shown in Figure 1. For example, it may be double-C-Loop (Fig. 1A), closed quadrupode (Fig. 1B), C-loop (Fig. 1C) or flat haptic (Fig. 1 D).
- the primary lens 1000 has an optical portion 1,100, 1 1 10, 1 120,1 130 and a haptic portion 1200, 1210, 1220, 1230, the optical portion being connected to the haptic portion via an optical / haptic junction 1300, 1310, 1320, 1330.
- the secondary lens comprises a first optical face 2100 having a multifocal optical diffractive or refractive component.
- This face is preferably the free surface of this secondary lens 2100 (i.e. it is the face which is not in contact with the primary lens).
- the secondary lens has a second optical surface 2200, in contact with the primary lens.
- This face preferably has refractive monofocal characteristics.
- the secondary lens has centering means 2300 of the secondary lens on the primary lens.
- These centering means preferably allow a centering of the secondary lens on the primary lens having a tolerance of less than 0.15 mm, preferably less than 0.1 mm, ideally less than 0.05 mm.
- the secondary lens comprises positioning means resting on the haptic portions of the primary lens (ie the parts serving to position the primary lens in the eye 1200, 1210, 1220, 1230). More preferably, the secondary lens comprises positioning means bearing on the haptic portions of the primary lens, as well as on the junction 1300, 1310, 1320, 1330 between the latter and the optical portion.
- the advantage of this type of lens in two parts is that, in case of reduction of the sensitivity of the retina, it is possible, with a minimally invasive operation, to remove the secondary lens, and thus to reconcentrate the lens.
- the whole of the light intensity on a single optical path usually the optical path allowing the long distance view.
- the primary lens is a refractive lens, preferably allowing the formation of a sharp image on the retina of objects located at a great distance (more than 2m, focusing objects "to infinity").
- the secondary lens is a multifocal diffractive lens having a diffraction order x having an infinite focal length with a diopter of 0D and at least an x + 1 order having an intermediate or near focal length.
- the order x then makes it possible to maintain the image formed by the unchanged primary lens, and to superimpose thereon an image formed by the order x + 1.
- the secondary lens is a multifocal diffractive lens having two diffraction profiles for which:
- the first profile has a diffraction order x having an infinite focal length with a diopter of 0D and at least one x + 1 order having an intermediate focal length,
- the second profile has a diffraction order y having an infinite focal length with a diopter of 0D and at least one y + 1 order having a close focal length,
- the energy dedicated to the x + 2 order of the first profile is superimposed on the energy dedicated to the y + 1 order of the second profile and contributes positively to the transfer of the contrast.
- the order x of the first profile and the order y of the second profile then make it possible to maintain the image formed by the unchanged primary lens, and to superimpose thereon an image formed by the order x + 1 and an image formed by the order y + 1.
- the orders x and y may be greater than or equal to 0, with a diopter of 0D.
- This type of superposition is for example described in the documents WO 201 1/092169 and the European patent application number 180 180 752.6 which we incorporate here by reference.
- a diffractive secondary lens makes it possible to use a secondary lens in the form of a thin meniscus, of thickness preferably less than ⁇ , more preferably less than 200 ⁇ , and even more preferably less than or equal to 100 ⁇ . This thickness is measured in the center of the meniscus.
- the small thickness of the secondary lens then allows to leave the injection process of the complete lens (primary + secondary) unchanged compared to the injection of a conventional intraocular implant.
- the thinness of the secondary lens also allows effective folding allowing its removal by a small size incision.
- the combination of the primary lens and the secondary lens forms a multifocal lens whose optical characteristics make it possible to obtain a sharp image on the retina of objects situated at great distances superimposed on a sharp image of objects located at short distance.
- the secondary lens comprises an additional focal distance to obtain a sharp image of objects located at intermediate distance.
- the two lenses will be fixed without the use of an adhesive layer: in fact, the use of such layers poses many problems. On the one hand these layers must have a good biocompatibility for a definitive implantation in the eye, on the other hand, it is essential that during the process of removal of the secondary lens, there remains no trace of the adhesive which could degrade the optical quality of the primary lens.
- the lens-forming materials advantageously have sufficient intrinsic adhesion to maintain the integrity of the lens in an aqueous medium.
- the secondary lens comprises a hydrogel as described in WO 2006/063994 which we incorporate here by reference.
- This hydrogel comprises at least one polymer formed by polymerization of at least one hydrophilic (meth) acrylic monomer, such as 2-hydroxyethylmethacrylate (HEMA), with at least one hydrophobic monomer, preferably with a high refractive index such that ethylene glycol phenyl ether acrylate (EGPEA) and at least one hydrophobic crosslinking agent such as poly (propylene glycol dimethacrylate) PPGDMA.
- HEMA 2-hydroxyethylmethacrylate
- EGPEA ethylene glycol phenyl ether acrylate
- PPGDMA poly (propylene glycol dimethacrylate)
- a particularly advantageous composition is characterized in that the hydrophilic monomer and the hydrophobic monomer together represent at least 90% by weight of the overall composition, and the crosslinking agent is a hydrophobic polymer which has several polymerizable ethylenically unsaturated groups. and which comprises a number of base units (degree of polymerization) equal to or greater than 5.
- hydrophilic monomers ie, monomers whose homopolymers are hydrophilic
- suitable may be selected from the group consisting of 2-hydroxyethylacrylate, 2-hydroxyethylmethacrylate (HEMA), acrylamide, N-ornithine acrylamide, N- ( 2-hydroxypropyl) acrylamide, polyethylene glycol acrylates, polyethylene glycol methacrylates, N-vinyl pyrrolidone, N-phenylacrylamide, dimethylaminopropyl methacrylamide, acrylic acid, benzylmethacrylamide, 4-hydroxybutylmethaerylate, glycerol mono methaerylate, glycerol mono acrylate, 2-sulfoethylmethacrylate, phenoxyethyl acrylate, phenoxyethyl methacrylate, 2- (2-ethoxyethoxy) ethyl acrylate, 2- (2-thoxyethoxy) ethyl methaerylate,
- hydrophobic monomers ie, monomers whose homopolymers are hydrophobic
- suitable can be selected from the group consisting of ethylene glycol phenyl ether acrylate (EGPEA), lauryl methacrylate, lauryl acrylate, 2-ethylhexylacrylate, 2-ethythexyl methacrylate , n-decyl acrylate, n-decyl methacrylate, hexyl acrylate, hexyl methamlate, stearyl acrylate, stearyl methacrylate, isodecyl acrylate, isodecyl methacrylate, isobornyl acrylate, isobornyl methacrylate, vinyl laurate, vinyl stearate, 1-hexadecyl acrylate, 1-hexadecyl methacrylate , n-myristyl acrylate, n-myristyl methacrylate, n
- the composition of the primary lens is characterized in that it contains 29 to 39% by weight of at least one first hydrophilic monomer and 53 to 63% by weight of at least one second hydrophobic monomer.
- high index of refraction means an index greater than 1.42 at 589 nm.
- the proportion between said hydrophilic monomer and said high refractive index monomer is reversed in the composition of the secondary lens.
- the sum of the concentrations by weight of the hydrophilic monomer in the materials of the primary lens and the secondary lens are comparable or equal to the sum of the concentrations by weight of the hydrophobic monomer with high index of refraction in the materials. of the primary lens and the secondary lens.
- the secondary lens comprises a hydrogel
- the partially hydrated state not only makes it possible to obtain adhesion between the two lenses, but also makes it possible to regulate the level of this adhesion as well as to regulate the potential problems of differential expansion occurring during hydration: the more the dehydration of the lens secondary before the bonding is pushed, more adhesion will be strong, but also, the expansion of the secondary lens will be important, which can cause internal stress problems inducing unwanted deformations.
- the secondary lens is partially dehydrated by surface drying of the secondary lens.
- the secondary lens is then immediately immediately pressed onto the primary lens in an aqueous medium.
- the secondary lens may preferably be of a diameter smaller than the optics of the primary lens, and advantageously of a diameter smaller than the rhexis, so that the secondary lens may be peeled without interfering with the edge of the lens. rhexis adhering to the optics of the primary lens.
- the breaks between the primary lens and the secondary lens be adhesive type, so as to maintain the optical properties of the primary lens unchanged.
- compositions that can be used for the manufacture of the primary lens and the secondary lens are as follows:
- Reference GF corresponds to a composition as described in WO 2006/063994, comprising a copolymer having 34% by weight of a hydrophilic methacrylic comonomer, such as HEMA; 58% by weight of a hydrophobic acrylic comonomer, such as EGPEA and 8% by weight of a dimethacrylic comonomer, such as poly (propylene glycol) dimethacrylate.
- Reference HY26 corresponds to a Benzflex 26 intraocular lens material (Benz Research and Development, USA), comprising in its composition, for the most part, the HEMA monomer. Primary and secondary lenses were machined in these different materials, and then hydrated in 0.9% NaCl saline. The inner surface of the secondary lens was then superficially dehydrated by means of a flow of air for about ten seconds before being pressed onto the primary lens. The assembly was then sterilized with steam at 121 ° C for 30 min.
- the different combinations of primary lenses / secondary lenses tested are shown in Table 1.
- the primary lens is a diopter lens of between 20 and 20.5D.
- the force required for peeling is shown in Figure 5.
- the peel forces were measured using a traction / compression bench (FL Plus, Lloyd).
- the peel rate was 50 mm / min.
- the primary lens was fixed on the low side and the secondary lens on the high side by clipping between the jaws of two clamps. The fur was made in the air with hydrated lenses.
- Table 1 also shows the modulation transfer function (MTF) 24 hours after removal of the secondary lens.
- MTF modulation transfer function
- An advantage of the invention is to allow insertion in one step of the two lenses of the IOL.
- the two lenses are assembled according to the procedures described above. In the present example, the compatibility of these assembled implants with the standard implantation procedures has been tested.
- a model injector (Accuject 2.2-1 p, Medicel, Switzerland) and a cohesive viscoelastic gel (Physiovisc Integral, Physiol, Belgium) were used. After injecting a sufficient amount of the gel into the cartridge, the two preassembled primary and secondary lenses were loaded into a cartridge by a standard procedure known to those skilled in the art. Then, the assembly of the lenses was injected with a traction / compression bench (LF Plus, Lloyd) by a controlled movement of the piston with an injection speed of 100 mm / min.
- LF Plus traction / compression bench
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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)
- Materials For Medical Uses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE2015/5589A BE1023464B1 (fr) | 2015-09-23 | 2015-09-23 | Lentille intraoculaire |
PCT/EP2016/071485 WO2017050607A1 (fr) | 2015-09-23 | 2016-09-13 | Lentille intraoculaire |
Publications (1)
Publication Number | Publication Date |
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EP3352706A1 true EP3352706A1 (fr) | 2018-08-01 |
Family
ID=54365907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16770705.8A Withdrawn EP3352706A1 (fr) | 2015-09-23 | 2016-09-13 | Lentille intraoculaire |
Country Status (4)
Country | Link |
---|---|
US (1) | US11337796B2 (fr) |
EP (1) | EP3352706A1 (fr) |
BE (1) | BE1023464B1 (fr) |
WO (1) | WO2017050607A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TR201922569A2 (tr) * | 2019-12-30 | 2021-07-26 | Ondokuz Mayis Ueniversitesi Rektoerluek | Psödofakik gözlerdeki göziçi lens üzerine yapıştırılabilen intraoküler ikincil lens ve uygulama yöntemleri. |
US11357620B1 (en) | 2021-09-10 | 2022-06-14 | California LASIK & Eye, Inc. | Exchangeable optics and therapeutics |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3431224A1 (de) * | 1983-08-04 | 1986-03-06 | Steven B Siepser | Kuenstliche intraokulare linse |
US5135592A (en) * | 1989-12-27 | 1992-08-04 | Minnesota Mining And Manufacturing Company | Ultrasonically welded hydrogel ophthalmic lens |
US5152788A (en) * | 1989-12-27 | 1992-10-06 | Minnesota Mining And Manufacturing Company | Multifocal diffractive ophthalmic lens and method of manufacture |
US5133747A (en) * | 1990-03-16 | 1992-07-28 | Feaster Fred T | Epiphakic intraocular lens and process of implantation |
US5117306A (en) * | 1990-07-17 | 1992-05-26 | Cohen Allen L | Diffraction bifocal with adjusted chromaticity |
EP0877586A1 (fr) * | 1996-01-26 | 1998-11-18 | Vision Pharmaceuticals L.P. | Systeme de lentilles intraoculaires primaires et auxiliaires |
US6991651B2 (en) | 2002-11-27 | 2006-01-31 | Valdemar Portney | Adjustable intraocular lens system and intraocular lenses therefor |
US6951391B2 (en) * | 2003-06-16 | 2005-10-04 | Apollo Optical Systems Llc | Bifocal multiorder diffractive lenses for vision correction |
BE1016383A3 (fr) | 2004-12-15 | 2006-10-03 | Physiol | Composition polymere pour lentille intraoculaire. |
US8287593B2 (en) * | 2009-11-24 | 2012-10-16 | Valdemar Portney | Adjustable multifocal intraocular lens system |
BE1019161A5 (fr) | 2010-01-26 | 2012-04-03 | Physiol | Lentille intraoculaire. |
US9304230B2 (en) * | 2013-03-15 | 2016-04-05 | Johnson & Johnson Vision Care, Inc. | Hydrogel lens including a removable media insert |
WO2014197170A1 (fr) * | 2013-06-03 | 2014-12-11 | Clarvista Medical, Inc. | Modèles modulaires de lentille intraoculaire et procédés associés |
-
2015
- 2015-09-23 BE BE2015/5589A patent/BE1023464B1/fr not_active IP Right Cessation
-
2016
- 2016-09-13 EP EP16770705.8A patent/EP3352706A1/fr not_active Withdrawn
- 2016-09-13 US US15/762,702 patent/US11337796B2/en active Active
- 2016-09-13 WO PCT/EP2016/071485 patent/WO2017050607A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US11337796B2 (en) | 2022-05-24 |
US20180263761A1 (en) | 2018-09-20 |
WO2017050607A1 (fr) | 2017-03-30 |
BE1023464B1 (fr) | 2017-03-28 |
BE1023464A1 (fr) | 2017-03-28 |
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