WO2011055066A1 - Lentille intracorneenne diffractive avec inversion de phase - Google Patents
Lentille intracorneenne diffractive avec inversion de phase Download PDFInfo
- Publication number
- WO2011055066A1 WO2011055066A1 PCT/FR2010/052323 FR2010052323W WO2011055066A1 WO 2011055066 A1 WO2011055066 A1 WO 2011055066A1 FR 2010052323 W FR2010052323 W FR 2010052323W WO 2011055066 A1 WO2011055066 A1 WO 2011055066A1
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- WIPO (PCT)
- Prior art keywords
- layer
- core
- hydrogel
- face
- lens according
- Prior art date
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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
- A61F2/145—Corneal inlays, onlays, or lenses for refractive correction
-
- 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
-
- 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
- A61F2/15—Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
-
- 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
- A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated structures
-
- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
- A61F2240/002—Designing or making customized prostheses
- A61F2240/004—Using a positive or negative model, e.g. moulds
Definitions
- the present invention relates to diffractive intracorneal lenses which are intended to be implanted in the cornea for the correction of vision defects, also referred to as ametropia. More particularly, this invention is concerned with a diffractive intracorneal lens, useful for the surgical correction of presbyopia.
- Corneal refractive surgery is performed, to date, by modifying the curvature of the anterior surface of the cornea.
- the correction of presbyopia by corneal surgery is not based on pseudo-accommodation, that is to say on the transformation of the cornea into a multifocal diopter by modifying the curvature of the cornea; in this mode of refractive correction, the optical performances are dependent on the pupillary diameter and the centering of the lens, and therefore on the level of illumination.
- the use of diffractive lenses gives good results, independent of the centering of the lens and the pupillary diameter.
- the current obstacles to the use of intracorneal implants, in particular diffractive intracorneal lenses, especially for the treatment of presbyopia, are the biocompatibility of these implants and especially their permeability to the flow of nutrients and oxygen in the thickness of the cornea, permeability which is essential to maintain the transparency and the refractive function of the cornea.
- EP 0420549 A2 and WO 99/07309 show examples of intracorneal lenses with phase inversion, made from hydrogels and having concentric annular zones arranged in steps.
- hydrogels with a high water content (low optical index). Such hydrogels have good permeability to nutrients and oxygen, but have a low mechanical strength, which affects the stability of the architecture of the lens and the handling of the latter.
- hydrogels with low water content (high optical index). Such hydrogels have a good mechanical strength, but nevertheless have a low permeability to nutrients and oxygen, which affects the refractive function of the cornea and can cause necrosis of the anterior portion of the cornea.
- EP 0420549 more particularly describes a diffractive intracorneal lens, comprising a core having a first face and a second face opposite to the first face, and at least a first hydrogel layer extending on the first face of the core and a second a hydrogel layer extending over the second face of the core, the first hydrogel layer comprising, on its face facing the core, a plurality of zones with the concentric projecting ires, each annular zone having a thickness varying from continuously towards the periphery of the lens.
- the first and second hydrogel layers are made of hydrogels with a high water content, while the core is made of hydrogel with a low water content.
- the realization of the low water hydrogel core ensures a satisfactory stability of the architecture of the central zone of the lens, but considerably hinders the permeability to nutrients and oxygen in said central zone.
- the production of the first and second hydrogels layers with high water content complicates the manipulation of the lens
- the first and second hydrogel layers are made of hydrogels with a low water content, while the core is made of hydrogel with a high water content.
- the realization of the hydrogel core with high water content ensures a permeability to nutrients and satisfactory oxygen in the central zone of the lens, but considerably hinders the stability of the architecture of said central zone.
- the present invention aims to solve the problems presented here, and it therefore aims to provide a diffractive intracorneal lens, adapted to the treatment of presbyopia and designed to allow a good circulation of the nutrient and oxygen flows in the thickness of the cornea, when the lens is implanted, while being manipulable and having a stable architecture.
- the invention relates to a diffractive intracorneal lens with phase inversion, comprising a core having a first face and a second face opposite to the first face, and at least a first hydrogel layer extending on the first face. core and a second hydrogel layer extending over the second face of the core, the first hydrogel layer comprising, on its face facing the core, a plurality of concentric or coaxial projecting annular zones, each annular zone having a thickness varying continuously towards the periphery of the lens, characterized in that the first and second layers have a permeability to nutrients and oxygen substantially the same or greater than that of the corneal tissue, and that least one of the annular zones of the first layer is in contact with the second hydrogel layer, and in that for each annular zone in contact with the second layer, the distance between the second layer and said annular zone varies continuously from a predetermined maximum value to a minimum zero value.
- the core is made of a material with a low water content
- the flow of nutrient and oxygen flows through the lens is ensured at the contact areas between the first and second layers, while the stability of the lens is provided by the nucleus itself.
- the stability of the lens is ensured by the areas of contact between the first and second layers which prevent a "collapse" of the lens on itself.
- each annular zone in contact with the second layer ensures a satisfactory diffractive behavior of the lens despite the presence of contact zones between the first and second layers in the central area of the lens.
- the predetermined maximum value may or may not be identical for each annular zone in contact with the second layer.
- the first layer is intended to be turned towards the anterior face of the cornea and the second layer is intended to be turned towards the posterior face of the cornea.
- the first layer is intended to be turned towards the posterior face of the cornea and the second layer is intended to be turned towards the anterior face of the cornea.
- the first layer may comprise a plurality of annular zones in contact with the second layer and a plurality of annular zones located at a distance from the second layer (that is to say that are not in contact with the second layer ), the annular zones in contact with the second layer preferably being regularly distributed over the surface of the lens.
- the surface of the set of contact zones between the annular zones of the first hydrogel layer and the second hydrogel layer represents less than 20% of the core area, and preferably less than 5% of the surface area of the core. the surface of the nucleus.
- the distance between the second layer and each annular zone varies continuously from a predetermined maximum value to a minimum zero value in the direction of the second layer. the periphery of the lens.
- the lens according to the invention is a diffractive intracorneal lens with phase inversion, with an analog profile.
- an analog profile provides, with respect to a binary profile, the possibility of choosing the distribution of the luminous flux between the focus of far and the focus of near different from the equal distribution only allowed by the binary profile.
- the analog profile suffers from chromatic aberrations for the extreme wavelengths of the visible spectrum as the binary profile.
- binary lens means a lens having alternating optically active annular zones and optically inactive annular zones of similar dimensions, and by analog profile lens a lens having a succession of optically active annular zones each corresponding to an average of an optically active zone and of an optically inactive zone of a binary profile.
- the first and second layers are made of an interpenetrating polymeric network hydrogel comprising at least a first polymeric network and a second interprantrés polymeric network.
- This hydrogel by its mechanical properties, ensures a stability of the architecture of the lens (maintaining the concentric or coaxial spatial distribution of the annular zones of the first layer), and easy handling of the latter.
- a hydrogel has a high permeability, especially glucose.
- the first polymer network is based on polyethylene glycol
- the second polymer network is based on polyacrylic acid, the polyacrylic acid being polymerized to form the second polymer network in the presence of the first polymer network.
- the first and second layers have an optical index substantially identical to that of the cornea.
- the core of such a lens may have an optical index greater than that of the first and second layers, or alternatively, lower than that of the first and second layers.
- the core is made of hydrogel, preferably a hydrogel comprising a polymeric network based on polyacrylic acid, or consists of water. It should be noted that the mechanical properties of the hydrogel forming the first and second layers provide shape stability to the core when the latter is constituted by a hydrogel with a high water content or by water.
- each annular zone of the first layer has a continuously increasing thickness towards the periphery of the lens.
- each annular zone of the first layer has a sinusoidal profile when the core has an optical index greater than that of the first and second layers.
- Such sinusoidal profile of the annular zones of the first layer makes it possible to obtain a core having diffusion wells ensuring a satisfactory permeability of the core despite the fact that the latter has a high optical index.
- such a sinusoidal profile has a satisfactory optical efficiency.
- each annular zone of the first layer has a parabolic profile when the core has an optical index lower than that of the first and second layers.
- Such a parabolic profile of each annular zone provides improved optical efficiency.
- the face of the second layer facing the core is substantially smooth.
- each contact zone between an annular zone of the first hydrogel layer and the second hydrogel layer located in the central portion of the lens has a width substantially smaller than that of said annular zone.
- the or each contact zone located in the central portion of the lens has a width less than a quarter of the width of said annular zone, or less than one-eighth of the width of said annular zone.
- the or each contact zone between an annular zone and the second hydrogel layer has a width substantially smaller than that of said annular zone.
- the or each contact zone between an annular zone and the second hydrogel layer is advantageously substantially annular, and preferably annular.
- the diffractive intracorneal lens is feasible as a monofocal lens adapted for the correction of spherical ametropia, or as a bifocal lens, the latter version being adapted to the correction of presbyopia.
- Figure 1 is a diametral sectional view of an intracorneal diffractive lens according to the present invention, in a first embodiment.
- Figure 2 is a partial view in diametral section, on an enlarged scale, of an intracorneal diffractive lens according to the present invention, in a second embodiment.
- an intracorneal diffractive lens whose central axis is designated A has an outside diameter D be between 5 and 9 mm, and a mean curvature defined by a radius R may be between 7 and 9 mm.
- This lens has a convex outer surface S1 and a concave inner surface S2, its thickness E measured between the two surfaces S1 and S2 may be between 0.02 mm and 0.3 mm.
- the useful area of the lens is a circular core 2 whose diameter d may be between 3 and 9 mm, depending on the outer diameter D of this lens.
- This core 2 comprises a succession of rings 3 of increasing diameter, all centered on the axis A.
- the rings 3 are of regularly decreasing width, from the central axis A towards the periphery of the lens, the geometry of the rings 3 being in accordance with the principle of the zonal lens with Rayleigh-Wood phase inversion.
- Each ring 3 has a decreasing thickness continuously towards the periphery of the lens.
- the thickness of each ring 3 decreases, in the direction of the periphery of the lens, to a very low value (of the order of a few microns) so that the core remains permeable to nutrients in this zone
- Each ring 3 intended to be turned towards the anterior face of the cornea of a patient advantageously has a sinusoidal profile, and more specifically a sinusoidal arc-shaped profile.
- the core 2 of the intracorneal lens further comprises, at its center, a profiled disc 4 made of the same material as the rings 3, and concentrically or coaxially surrounded by these rings 3.
- the disc central 4 is likened to a first ring, of inner radius equal to zero.
- the central disk 4 has a decreasing thickness continuously towards the periphery of the lens.
- the thickness of the central disk 4 decreases, in the direction of the periphery of the lens, to a very low value (of the order of a few microns) so that the core remains permeable to nutrients in the zone. central disk device 4.
- the intracorneal lens further comprises a first layer 5 and a second layer 6 enclosing the core 2.
- the first layer 5 covers the face of the core 2 intended to be turned towards the anterior face of the patient's cornea and the second layer 6 covers the face of the core 2 intended to be turned towards the posterior face of the patient's cornea, the two layers 5, 6 meeting at the periphery of the lens.
- the first and second layers 5, 6 are made of an interpenetrating polymeric network hydrogel comprising a first polyethylene glycol-based polymeric network and a second polyacrylic acid-based polymeric network, the polyacrylic acid being polymerized to form the second network. polymer in the presence of the first polymeric network.
- the water percentage of the hydrogel is advantageously equal to or greater than 78%.
- This hydrogel forms a "cement” which connects all the rings 3 to each other, thus stabilizing the structure of the lens.
- the hydrogel forming "cement” has a permeability to nutrients and oxygen which is comparable to that of corneal tissue, and an optical index substantially identical to that of the cornea.
- the first layer 5 comprises, on its face facing the core
- each annular zone 7 has a profile complementary to that of the corresponding annular zone 3 of the core 2.
- annular zones 7 are in contact with the second layer 6.
- the annular zones 7 in contact with the second layer 6 are regularly distributed.
- an annular zone 7 out of two or three is in contact with the second layer 6.
- each contact zone between an annular zone 7 and the second hydrogel layer 6 has a width less than a quarter of the width of said annular zone 7, or less than one-eighth of the width of said annular zone 7.
- the face of the second layer 6 facing the core 2 is substantially smooth.
- the core 2 that is to say the rings 3 and the central disc 5, is made of a material having an optical index different from that of the cornea.
- it may also be a hydrogel, but whose optical index is higher than that of the hydrogel forming the first and second layers and whose percentage in water is less than at 78%, and preferably between 50% and 70%.
- the core-forming hydrogel 2 may preferably be a hydrogel comprising a polymeric polyacrylic acid-based network.
- outer surfaces S1 and inner S2 may be parallel, so without effect on the correction made, or on the contrary be non-parallel and shaped to participate in the visual correction, by an additional refractive effect.
- Such a diffractive intracorneal lens is achievable by molding or overmolding techniques.
- it can be manufactured for a double injection process.
- the process for producing the enil represented in FIG. 1 comprises the steps of:
- the first and second layers 5, 6 formed of an interpenetrating polymeric network hydrogel comprising a first polymeric network based on polyethylenic glycol and a second polymeric network based on polyacrylic acid, and secondly the core 2 formed of a hydrogel comprising a polymeric network based on polyacrylic acid.
- Such a manufacturing method ensures perfect cohesion between the first and second layers 5, 6 and the core 2 and also a perfect adhesion of the latter, which further improves the stability of the architecture of the lens.
- FIG. 2 in which the elements corresponding to those previously described are designated by the same references, represents a variant of this intracorneal diffractive lens.
- the face of each ring 3 intended to be turned towards the anterior face of the cornea of a patient has a convex and parabolic profile, and more specifically a convex profile in the form of a parabola bow.
- the core 2 has a lower optical index than the first and second layers 5, 6.
- the first and second layers are made of a hydrogel whose water content is close to 78. %, while the core 2 is made in a hydrogel whose water content is higher than that of the hydrogel forming the first and second layers, and typically greater than 85%, or even constituted by water.
- the invention is not limited to the embodiments of this intracorneal diffractive lens, described above as examples, it encompasses all the variants of embodiment falling within the scope of the invention. protection of claims.
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
- Eyeglasses (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2779158A CA2779158A1 (fr) | 2009-11-06 | 2010-10-29 | Lentille intracorneenne diffractive avec inversion de phase |
CN2010800501170A CN102791222A (zh) | 2009-11-06 | 2010-10-29 | 具有位相倒置的角膜内衍射透镜 |
EP10788365A EP2496179A1 (fr) | 2009-11-06 | 2010-10-29 | Lentille intracorneenne diffractive avec inversion de phase |
JP2012537433A JP2013509928A (ja) | 2009-11-06 | 2010-10-29 | 位相反転を有している角膜内回折レンズ |
US13/508,157 US20120323319A1 (en) | 2009-11-06 | 2010-10-29 | Intracorneal diffractive lens having phase inversion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0957865A FR2952298B1 (fr) | 2009-11-06 | 2009-11-06 | Lentille diffractive intracorneenne avec inversion de phase |
FR0957865 | 2009-11-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011055066A1 true WO2011055066A1 (fr) | 2011-05-12 |
Family
ID=42115351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2010/052323 WO2011055066A1 (fr) | 2009-11-06 | 2010-10-29 | Lentille intracorneenne diffractive avec inversion de phase |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120323319A1 (fr) |
EP (1) | EP2496179A1 (fr) |
JP (1) | JP2013509928A (fr) |
CN (1) | CN102791222A (fr) |
CA (1) | CA2779158A1 (fr) |
FR (1) | FR2952298B1 (fr) |
WO (1) | WO2011055066A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150134058A1 (en) * | 2012-05-14 | 2015-05-14 | Neoptics Ag | Intracorneal Lens |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2650208C1 (ru) | 2014-07-25 | 2018-04-11 | Мусасино Ленс Рисерч, Инк. | Факичная интраокулярная линза |
US20160184084A1 (en) * | 2014-12-29 | 2016-06-30 | Ofer Daphna | Keratoprosthesis |
DE202016009004U1 (de) * | 2015-04-15 | 2021-06-11 | Vision Ease, Lp | Ophthalmische Linse mit abgestuften Mikrolinsen |
WO2020031321A1 (fr) | 2018-08-09 | 2020-02-13 | 株式会社ニコン | Lentille ophtalmique et son procédé de fabrication |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0420549A2 (fr) | 1989-09-25 | 1991-04-03 | HYMEDIX International, Inc. | Lentille pour implant de conrnée |
WO1999007309A1 (fr) | 1997-08-07 | 1999-02-18 | Alcon Laboratories, Inc. | Lentille intra-corneenne diffractive |
WO2006023404A2 (fr) * | 2004-08-20 | 2006-03-02 | Apollo Optical Systems, Inc. | Lentilles de diffraction pour la correction visuelle |
WO2006042272A2 (fr) * | 2004-10-05 | 2006-04-20 | The Board Of Trustees Of The Leland Stanford Junior University | Implant corneen artificiel |
WO2006116137A2 (fr) * | 2005-04-21 | 2006-11-02 | The Board Of Trustees Of The Leland Stanford Junior University | Cornee artificielle |
WO2007019389A1 (fr) * | 2005-08-05 | 2007-02-15 | Visiogen, Inc. | Lentille intraoculaire diffractive a accommodation |
WO2009043985A1 (fr) * | 2007-07-09 | 2009-04-09 | Gilbert Cohen | Lentille diffractive intracorneenne |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7025456B2 (en) * | 2004-08-20 | 2006-04-11 | Apollo Optical Systems, Llc | Diffractive lenses for vision correction |
-
2009
- 2009-11-06 FR FR0957865A patent/FR2952298B1/fr not_active Expired - Fee Related
-
2010
- 2010-10-29 EP EP10788365A patent/EP2496179A1/fr not_active Withdrawn
- 2010-10-29 CA CA2779158A patent/CA2779158A1/fr not_active Abandoned
- 2010-10-29 WO PCT/FR2010/052323 patent/WO2011055066A1/fr active Application Filing
- 2010-10-29 CN CN2010800501170A patent/CN102791222A/zh active Pending
- 2010-10-29 JP JP2012537433A patent/JP2013509928A/ja not_active Withdrawn
- 2010-10-29 US US13/508,157 patent/US20120323319A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0420549A2 (fr) | 1989-09-25 | 1991-04-03 | HYMEDIX International, Inc. | Lentille pour implant de conrnée |
WO1999007309A1 (fr) | 1997-08-07 | 1999-02-18 | Alcon Laboratories, Inc. | Lentille intra-corneenne diffractive |
WO2006023404A2 (fr) * | 2004-08-20 | 2006-03-02 | Apollo Optical Systems, Inc. | Lentilles de diffraction pour la correction visuelle |
WO2006042272A2 (fr) * | 2004-10-05 | 2006-04-20 | The Board Of Trustees Of The Leland Stanford Junior University | Implant corneen artificiel |
WO2006116137A2 (fr) * | 2005-04-21 | 2006-11-02 | The Board Of Trustees Of The Leland Stanford Junior University | Cornee artificielle |
WO2007019389A1 (fr) * | 2005-08-05 | 2007-02-15 | Visiogen, Inc. | Lentille intraoculaire diffractive a accommodation |
WO2009043985A1 (fr) * | 2007-07-09 | 2009-04-09 | Gilbert Cohen | Lentille diffractive intracorneenne |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150134058A1 (en) * | 2012-05-14 | 2015-05-14 | Neoptics Ag | Intracorneal Lens |
US9603700B2 (en) * | 2012-05-14 | 2017-03-28 | Presbia Ireland Limited | Intracorneal lens |
AU2013261947B2 (en) * | 2012-05-14 | 2017-09-07 | Presbia Ireland Limited | Intracorneal lens |
EP2664300B1 (fr) * | 2012-05-14 | 2020-10-28 | Presbia Ireland Limited | Lentille intracornéenne |
Also Published As
Publication number | Publication date |
---|---|
US20120323319A1 (en) | 2012-12-20 |
JP2013509928A (ja) | 2013-03-21 |
CN102791222A (zh) | 2012-11-21 |
FR2952298B1 (fr) | 2012-05-25 |
CA2779158A1 (fr) | 2011-05-12 |
EP2496179A1 (fr) | 2012-09-12 |
FR2952298A1 (fr) | 2011-05-13 |
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