WO1991010154A1 - Lentille de contact pour presbyte - Google Patents
Lentille de contact pour presbyte Download PDFInfo
- Publication number
- WO1991010154A1 WO1991010154A1 PCT/FR1991/000002 FR9100002W WO9110154A1 WO 1991010154 A1 WO1991010154 A1 WO 1991010154A1 FR 9100002 W FR9100002 W FR 9100002W WO 9110154 A1 WO9110154 A1 WO 9110154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- central
- lens according
- recess
- lens
- peripheral
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
- G02C7/041—Contact lenses for the eyes bifocal; multifocal
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/081—Ophthalmic lenses with variable focal length
- G02C7/085—Fluid-filled lenses, e.g. electro-wetting lenses
Definitions
- the present invention relates to a contact lens for presbyopic whose optical power varies via an interstitial liquid.
- the optical system is such that for near vision, the visual rays pass through a liquid contained in a cavity formed in the lens, while in distant vision, they pass to the above the cavity, or through its upper part which is empty of liquid.
- An object of the present invention is to overcome these drawbacks by providing a contact lens whose focal power is capable of being gradually modified between a minimum value and a maximum value, by actions consisting of movements. usual eyes and eyelids, and without necessarily tilting variations.
- a presbyopic lens according to the invention is characterized in that it has behind its front face a central recess communicating with a peripheral recess located at least partially in the lower zone of the lens, in that the space comprising said central and peripheral recesses communicating with each other is intended to be completely filled with a liquid, in that the material facing and in front of said recesses is flexible, and elastically deformable opposite and in front of the central recess , so that an action of palpebral compression on said peripheral recess, obtained by an inclined position of the eye or a voluntary narrowing of the palpebral slot, results in swelling of said central recess behind said anterior face, resulting in a modification of curvature in the central area and, therefore, a change in optical power.
- FIG. 1 is a schematic plan view of a lens according to the invention in a preferred embodiment
- FIG. 2a is a view in vertical axial section of the lens of FIG. 1, as it appears in distant vision
- FIG. 2b is a view identical to FIG. 2a, but illustrating the deformation of the anterior face obtained by palpebral pressure on the lower zone of the lens, for close-up vision
- Figs. 3a to 3c show the same lens in place on one eye, in distant vision in FIG. 3a, in close-up vision with the eye directed downwards in FIG. 3b, and in close-up vision with the eye directed horizontally in FIG. 3c
- Figs. 3a to 3c show the same lens in place on one eye, in distant vision in FIG. 3a, in close-up vision with the eye directed downwards in FIG. 3b, and in close-up vision with the eye directed horizontally in FIG. 3c
- FIGS. 5a and 5b are respectively a half-view in plan with representation of the profile and a view in axial section of a first variant of lens according to the invention
- FIGS. 5a and 5b are the same views of a second variant
- FIG. 6 is an axial section view of a third variant.
- the lens of Figs. l to 3c is a flexible double-walled lens: a front wall 1 and a rear wall 2. Between these two walls, a system of cubicles is provided, filled with liquid. This liquid must be able to move from one cubicle to another under the effect of the eyelids.
- the design and location of the cubicles can be of different shapes.
- a fan cubicle 3 is located in the lower part. It communicates with a circular cubicle 4 located in the center, or close to it, by a small union channel 5.
- the lens is optically designed to provide the subject with good distance vision, the gaze in the primary position, that is to say straight ahead, in the position of FIG. 3a.
- the curvatures of the lens in accordance with the refractive index of the material, are chosen so as to give a clear retinal image of an object situated at infinity.
- the lower cubicle 3, at this time there, is not subjected to any pressure of the lower eyelid, that is to say that it is located above the lower palpebral edge.
- the lower fan cubicle 3 passes under the lower palpebral edge.
- the lower eyelid then presses on this cubicle and drives the liquid towards the central cubicle or small bulb 4 which inflates by forming inside the lens a small meniscus plane convex or close to this shape.
- the refractive index of the liquid and the induced curvatures must provide an increase in the power of the lens capable of giving the retina a clear image of an object located at normal reading distance.
- This liquid meniscus will produce a small domed deformation on the anterior surface 6 of the lens, while the posterior surface 7 will remain slightly deformed because of the presence of the cornea against it.
- the subject wants to look at a close object without looking down, he can produce the same effect of filling the cubicle or central bulb 4 by voluntarily reducing the palpebral slit, Fig. 3c. This tonic movement will press on the fan cubicle 3 and drive the liquid towards the central cubicle 4. Normally, in the horizontal gaze, the subject looks endlessly, and the lens must be designed to provide correction for far vision .
- the fan cubicle 3 must be of sufficiently large area so that the pressure of the lower eyelid, which is low, is sufficient for an adequate transfer of liquid to the central cubicle 4.
- the union channel 5 passes closer to the rear face 7 than to the front face 6, so that neither deformation of its walls nor deformation of the front face is generated along its path.
- its deformation will be slight. If necessary, it will be possible to give its walls increased rigidity, by greater polymerization at its level for example. Furthermore, care will be taken that its diameter is sufficient to in no case cause blockage of the circulation of the liquid.
- the central cubicle or bulb 4 must have a studied diameter. It does not have to be large and comparable to the average pupil diameter. In fact, in all presbyopia correction lenses, the central zone intended to correct near vision is of small diameter and, however, near vision is usually satisfactory, although slightly blurred by the simultaneous image. of the distant vision system. But what bothers most is the presence of a blur in far vision, due to the persistence, during this far vision, of a second blurred image caused by the cohabitation of the system to see close up. It is therefore important that the unused system is retracted. This is what the invention provides. For that, it is necessary that the cubicle or central bulb 4 empties and that its walls flatten during the far vision, and that it fills during the near vision.
- the central cubicle 4 will be slightly offset downward relative to the geometric center of the lens. It turns out that the latter has a slight tendency to go up in the gaze downwards relative to the center of the cornea, and the pupil itself has a slight tendency to decenter downwards and inwards in the near vision.
- the lens must be stabilized. Indeed, the flashes give it a turning movement. However, the fan cubicle 3 must imperatively remain down. It is therefore necessary to use stabilization systems which are already well known since they are used for lenses intended to equip astigmatic eyes. We will use, for example, the device of allegations.
- An upper relief 8 may even be accompanied by an additional thickness 9 situated just below the upper palpebral edge. In addition to its stabilizing effect, it can also constitute a slight stop for the upper eyelid which pushes the lower part of the lens under the lower eyelid when looking down.
- a ballast prism 10 can also be provided under the lower cubicle 3.
- the liquid chosen must not cause a blocking phenomenon. Its refractive index must correspond to the desired optical effect. Its oxygen permeability is desirable so as not to interfere with the oxygen demand of the cornea; as well as the permeability of the lens material.
- FIGs. 4a to 6 other embodiments of lenses in accordance with the invention are illustrated, that is to say corresponding to the same idea of a lens containing a liquid phase and that the latter, mobilized by the eyelids , generates a deformation causing a change in optical power.
- a circular cavity is formed over most of the surface, between the walls 1 and 2.
- This cavity is divided into an annular part 3 'having the same function and substantially the same profile as the cubicle 3 previously described , an intermediate part 5 'tightened by thickening of the material under the front face 6, and a central part 4', to which corresponds in the front wall 1 a zone of least resistance which can be deformed under the pressure of the liquid compressed by palpebral pressure.
- this lens can be free of stabilization means. However, if the near vision system is offset from the geometric center, these stabilization means become necessary again.
- Figs. 5a, 5b on the one hand, and 6 on the other hand illustrate lenses similar respectively to the first and second lenses already described, but free of posterior wall. The role of the latter is then played by the cornea of the eye, while the liquid phase consists of tears.
- the lower cubicle 3, the central cubicle 4 and the union channel 5 are parts in hollow in the rear face 7 of the lens. It is the same for the circular cavity in the rear face 7 of the lens in FIG. 6, which is divided by its profile into a peripheral annular volume 3 ', a central part 4', and a tightened intermediate part 5 ', whose shapes are substantially identical to the same parts of the lens shown in Figs. 4a and 4b.
- the lenses according to the invention can be made from a single material, but also from several materials, the characteristics of which are chosen according to the parts for which they are intended: in fact, certain parts may have an interest in being more elastic or more rigid than others. Thus, for example, in the embodiments with rear wall, this can be provided rigid. In the same vein, the zones corresponding to the central cubicle, the fan-shaped lodge, or the peripheral annular lodge can be flexible while the other zones are rigid. This possible difference in consistency should be considered more particularly in the variants not having a posterior wall.
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR90/00193 | 1990-01-05 | ||
FR9000193A FR2656933B1 (fr) | 1990-01-05 | 1990-01-05 | Lentille de contact pour presbyte. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991010154A1 true WO1991010154A1 (fr) | 1991-07-11 |
Family
ID=9392616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1991/000002 WO1991010154A1 (fr) | 1990-01-05 | 1991-01-03 | Lentille de contact pour presbyte |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0507866A1 (fr) |
FR (1) | FR2656933B1 (fr) |
WO (1) | WO1991010154A1 (fr) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007002671A1 (fr) * | 2005-06-27 | 2007-01-04 | Paragon Vision Sciences, Inc. | Lentille de contact stratifiée |
JP2010522352A (ja) * | 2007-03-19 | 2010-07-01 | イン テクノロジー ホールディングス エルエルシー | 流体力学的多焦点コンタクトレンズおよび関連する製造技術 |
US7866815B2 (en) * | 2009-03-30 | 2011-01-11 | Dorothy Mai Win-Hall | Accommodating or focusable contact lens |
EP2639626A2 (fr) * | 2012-03-13 | 2013-09-18 | Johnson & Johnson Vision Care, Inc. | Zones de fluide dynamique dans des lentilles de contact |
WO2014117173A2 (fr) | 2013-01-28 | 2014-07-31 | Onefocus Technology, Llc | Lentille de contact molle d'accommodation |
WO2014120928A2 (fr) | 2013-01-30 | 2014-08-07 | Onefocus Technology, Llc | Procédé de fabrication d'une lentille de contact accomodative souple |
US8911078B2 (en) | 2012-05-25 | 2014-12-16 | Crt Technology, Inc. | Multicomponent optical device having a space |
WO2016173620A1 (fr) * | 2015-04-28 | 2016-11-03 | Optotune Ag | Lentilles de contact et intraoculaires comprenant une longueur focale réglable |
EP3084486A4 (fr) * | 2013-12-20 | 2017-11-22 | Onefocus Vision, LLC | Module fluidique destiné à loger une lentille de contact souple |
US9910296B2 (en) | 2015-11-11 | 2018-03-06 | Onefocus Vision, Inc. | Accommodating lens with cavity |
EP3195049A4 (fr) * | 2014-07-31 | 2018-03-21 | Onefocus Vision, Inc. | Dispositif de commande réagissant à la largeur de fissure de paupière |
US10049275B2 (en) | 2012-05-25 | 2018-08-14 | Paragon Crt Company Llc | Multicomponent optical device for visual and audible translation and recognition |
US10302968B2 (en) | 2013-01-28 | 2019-05-28 | Onefocus Vision, Inc. | Fluidic module for accommodating soft contact lens |
US10712588B2 (en) | 2012-05-25 | 2020-07-14 | Paragon Crt Company Llc | Contact lens having a space |
US10942371B2 (en) | 2015-11-11 | 2021-03-09 | Onefocus Vision, Inc. | Rotationally stabilized contact lens |
US11947196B2 (en) | 2017-05-01 | 2024-04-02 | Pres-By Vision Ltd. | Dynamic tear lenses |
US11982880B2 (en) | 2016-11-11 | 2024-05-14 | Onefocus Vision, Inc. | Accommodating cavity lens shaped with photocleavable insert |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1279252A (fr) * | 1960-07-18 | 1961-12-22 | Dispositif optique à une ou plusieurs distances focales | |
US3614215A (en) * | 1970-04-23 | 1971-10-19 | Leo Mackta | Fluid bifocal spectacle |
FR2369583A1 (fr) * | 1976-11-02 | 1978-05-26 | Glorieux Gilbert | Lentille optique permettant une correction differentielle |
US4477158A (en) * | 1981-10-15 | 1984-10-16 | Pollock Stephen C | Lens system for variable refraction |
-
1990
- 1990-01-05 FR FR9000193A patent/FR2656933B1/fr not_active Expired - Fee Related
-
1991
- 1991-01-03 EP EP91902711A patent/EP0507866A1/fr not_active Ceased
- 1991-01-03 WO PCT/FR1991/000002 patent/WO1991010154A1/fr not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1279252A (fr) * | 1960-07-18 | 1961-12-22 | Dispositif optique à une ou plusieurs distances focales | |
US3614215A (en) * | 1970-04-23 | 1971-10-19 | Leo Mackta | Fluid bifocal spectacle |
FR2369583A1 (fr) * | 1976-11-02 | 1978-05-26 | Glorieux Gilbert | Lentille optique permettant une correction differentielle |
US4477158A (en) * | 1981-10-15 | 1984-10-16 | Pollock Stephen C | Lens system for variable refraction |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007002671A1 (fr) * | 2005-06-27 | 2007-01-04 | Paragon Vision Sciences, Inc. | Lentille de contact stratifiée |
JP2010522352A (ja) * | 2007-03-19 | 2010-07-01 | イン テクノロジー ホールディングス エルエルシー | 流体力学的多焦点コンタクトレンズおよび関連する製造技術 |
US7866815B2 (en) * | 2009-03-30 | 2011-01-11 | Dorothy Mai Win-Hall | Accommodating or focusable contact lens |
EP2639626A2 (fr) * | 2012-03-13 | 2013-09-18 | Johnson & Johnson Vision Care, Inc. | Zones de fluide dynamique dans des lentilles de contact |
EP2639626A3 (fr) * | 2012-03-13 | 2013-11-27 | Johnson & Johnson Vision Care, Inc. | Zones de fluide dynamique dans des lentilles de contact |
US9046699B2 (en) | 2012-03-13 | 2015-06-02 | Johnson & Johnson Vision Care, Inc. | Dynamic fluid zones in contact lenses |
US9442307B2 (en) | 2012-05-25 | 2016-09-13 | Crt Technology, Inc. | Multicomponent optical device having a space |
US10712588B2 (en) | 2012-05-25 | 2020-07-14 | Paragon Crt Company Llc | Contact lens having a space |
US8911078B2 (en) | 2012-05-25 | 2014-12-16 | Crt Technology, Inc. | Multicomponent optical device having a space |
US10049275B2 (en) | 2012-05-25 | 2018-08-14 | Paragon Crt Company Llc | Multicomponent optical device for visual and audible translation and recognition |
US10754176B2 (en) | 2013-01-28 | 2020-08-25 | Onefocus Technology, Llc | Accommodating soft contact lens |
US10018855B2 (en) | 2013-01-28 | 2018-07-10 | Onefocus Technology, Llc | Accommodating soft contact lens |
EP2948814A4 (fr) * | 2013-01-28 | 2016-10-05 | Onefocus Technology Llc | Lentille de contact molle d'accommodation |
US11874531B2 (en) | 2013-01-28 | 2024-01-16 | Onefocus Technology, Llc | Accommodating soft contact lens |
US10338411B2 (en) | 2013-01-28 | 2019-07-02 | Onefocus Technology, Llc | Accommodating soft contact lens |
US10302968B2 (en) | 2013-01-28 | 2019-05-28 | Onefocus Vision, Inc. | Fluidic module for accommodating soft contact lens |
JP2016505906A (ja) * | 2013-01-28 | 2016-02-25 | ワンフォーカス テクノロジー, エルエルシー | 調節式軟質コンタクトレンズ |
US10444543B2 (en) | 2013-01-28 | 2019-10-15 | Onefocus Vision, Inc. | Control device responsive to lid fissure width |
WO2014117173A2 (fr) | 2013-01-28 | 2014-07-31 | Onefocus Technology, Llc | Lentille de contact molle d'accommodation |
WO2014120928A2 (fr) | 2013-01-30 | 2014-08-07 | Onefocus Technology, Llc | Procédé de fabrication d'une lentille de contact accomodative souple |
EP2951635A4 (fr) * | 2013-01-30 | 2016-10-05 | Onefocus Technology Llc | Procédé de fabrication d'une lentille de contact accomodative souple |
US10379383B2 (en) | 2013-01-30 | 2019-08-13 | Onefocus Technology, Llc | Manufacturing process of an accommodating soft contact lens |
US11143887B2 (en) | 2013-12-20 | 2021-10-12 | Onefocus Vision, Inc. | Fluidic module for accommodating soft contact lens |
EP3084486A4 (fr) * | 2013-12-20 | 2017-11-22 | Onefocus Vision, LLC | Module fluidique destiné à loger une lentille de contact souple |
US11774781B2 (en) | 2013-12-20 | 2023-10-03 | Onefocus Vision, Inc. | Fluidic module for accommodating soft contact lens |
EP3195049A4 (fr) * | 2014-07-31 | 2018-03-21 | Onefocus Vision, Inc. | Dispositif de commande réagissant à la largeur de fissure de paupière |
JP2018518700A (ja) * | 2015-04-28 | 2018-07-12 | オプトチューン アクチェンゲゼルシャフト | 調整可能な焦点距離を有するコンタクトおよび眼内レンズ |
CN107847315A (zh) * | 2015-04-28 | 2018-03-27 | 奥普托图尼股份公司 | 具有可调焦距的接触镜片和眼内镜片 |
WO2016174181A3 (fr) * | 2015-04-28 | 2017-01-12 | Optotune Ag | Lentilles de contact et intraoculaires comprenant une longueur focale réglable |
WO2016173620A1 (fr) * | 2015-04-28 | 2016-11-03 | Optotune Ag | Lentilles de contact et intraoculaires comprenant une longueur focale réglable |
US10761348B2 (en) | 2015-11-11 | 2020-09-01 | Onefocus Vision, Inc. | Accommodating lens with cavity |
US10942371B2 (en) | 2015-11-11 | 2021-03-09 | Onefocus Vision, Inc. | Rotationally stabilized contact lens |
US9910296B2 (en) | 2015-11-11 | 2018-03-06 | Onefocus Vision, Inc. | Accommodating lens with cavity |
US11703696B2 (en) | 2015-11-11 | 2023-07-18 | Onefocus Vision, Inc. | Rotationally stabilized contact lens |
US11982880B2 (en) | 2016-11-11 | 2024-05-14 | Onefocus Vision, Inc. | Accommodating cavity lens shaped with photocleavable insert |
US11947196B2 (en) | 2017-05-01 | 2024-04-02 | Pres-By Vision Ltd. | Dynamic tear lenses |
Also Published As
Publication number | Publication date |
---|---|
FR2656933A1 (fr) | 1991-07-12 |
FR2656933B1 (fr) | 1993-03-12 |
EP0507866A1 (fr) | 1992-10-14 |
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