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WO2024223645A1 - Verre de lunettes pour la gestion de la myopie au moyen d'un processus de contrôle de progression double - Google Patents

Verre de lunettes pour la gestion de la myopie au moyen d'un processus de contrôle de progression double Download PDF

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Publication number
WO2024223645A1
WO2024223645A1 PCT/EP2024/061229 EP2024061229W WO2024223645A1 WO 2024223645 A1 WO2024223645 A1 WO 2024223645A1 EP 2024061229 W EP2024061229 W EP 2024061229W WO 2024223645 A1 WO2024223645 A1 WO 2024223645A1
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WO
WIPO (PCT)
Prior art keywords
spectacle lens
surface structure
effect
structure characteristic
central main
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.)
Pending
Application number
PCT/EP2024/061229
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German (de)
English (en)
Inventor
Matthias ROSENSTEINER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rodenstock GmbH
Original Assignee
Rodenstock GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rodenstock GmbH filed Critical Rodenstock GmbH
Priority to CN202480027771.1A priority Critical patent/CN121002428A/zh
Publication of WO2024223645A1 publication Critical patent/WO2024223645A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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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
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • G02C7/061—Spectacle lenses with progressively varying focal power
    • 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
    • G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/24—Myopia progression prevention

Definitions

  • the invention relates to a spectacle lens with a special distribution of additional optical effects to improve long-term wearing comfort while simultaneously improving perception.
  • Myopia management is the attempt to control abnormal longitudinal growth of the eye, particularly in children and adolescents, which leads to severe myopia and is caused, among other things, by a lifestyle dictated by modern society (little time spent outdoors and a lot of close work).
  • One possible approach to controlling the progression of myopia is to wear special glasses that attempt to pull the focal plane of the visual field in the periphery in front of the retina and thus slow down the longitudinal growth of the eye.
  • lenses with a design similar to progressive lenses which bring the focal plane in the peripheral field of vision in front of the retina by adding power.
  • Other variants of lenses have a large number of small additional effect elements (lenslets, etc.) that are distributed across the lens and create a second focal plane in front of the retina.
  • Another possibility is the introduction of small scatterers that reduce the contrast in the periphery and thus inhibit the progression of myopia (e.g. WO 2018/026697 A1 ).
  • the often noticeable tendency for myopia to progress means that the comfort of the lenses once fitted and thus the wearer's satisfaction and the tolerability of the glasses decrease again after a short time.
  • One object of the present invention is to improve the long-term compatibility of glasses or a spectacle lens and thus to achieve long-term wearing comfort at low cost. This object is achieved according to the invention by the subject matter of the independent claims. Preferred embodiments are the subject matter of the dependent claims.
  • the invention relates in particular to a spectacle lens which comprises a central main viewing area with a substantially constant refractive power and preferably a substantially constant image contrast and a functional area which preferably borders the central main viewing area at least horizontally on both sides and which, compared to the central main viewing area, has an additional functional effect which comprises at least an additional dioptric effect and/or a contrast reduction compared to the central main viewing area, wherein the additional functional effect in the functional area is brought about by a combination of at least one first surface structure characteristic and a second surface structure characteristic (different from the first surface structure characteristic) of the spectacle lens.
  • the combination of different effects according to the invention allows this compromise to be made significantly more in favour of a myopia-stopping effect, without increasing the individual undesirable side effects significantly.
  • spectacle lenses similar to progressive lenses with a peripheral increase in effect ie a peripheral dioptric additional effect
  • make it more difficult to see through the periphery due to this additional effect and have the typical other disadvantages of progressive lenses eg astigmatism in the lens, Distortions, rocking effects.
  • Spectacle lenses with microlenses (lenslets) limit vision in particular by reducing contrast and creating secondary images.
  • the combination of such different mechanisms of action according to the invention can reinforce or complement each other in their effect on myopia management, while the individual undesirable side effects can be kept relatively low when viewed individually.
  • the invention thus offers the possibility of increasing the effectiveness of spectacle lenses for myopia management compared to conventional lenses, while at the same time maintaining tolerability.
  • the first and/or second surface structure characteristic is understood to mean in particular a surface shape or surface effect that deviates from a pure or simple spherical shape or effect, preferably also from an astigmatic surface shape or effect.
  • the optical effect of the first and/or second surface structure characteristic deviates from a surface for pure correction of visual defects.
  • the first and/or the second surface structure characteristic comprises: a progressive surface refractive power; and/or a microlens arrangement (microlens field); and/or a contrast reduction.
  • the progressive surface refractive power is achieved in particular by a continuous free-form surface of the spectacle lens, whereby the surface curvature of the front and/or rear surface of the spectacle lens is continuously changed from the central main viewing area to the functional area or within the functional area in such a way that the functional area at least partially produces a higher refractive power than the essentially constant refractive power in the central main viewing area, so that the part of the light that passes through this functional area is imaged in front of the retina in order to compensate for the longitudinal growth of the eye.
  • the progressive surface refractive power of the first and/or second surface structure characteristic preferably at least partially causes a positive dioptric additional effect, ie the surface refractive power in the functional area is then preferably at least partially less negative or more positive than in the central main viewing area.
  • the first and/or the second surface structure characteristic is designed as microstructures, in particular as microlenses (in particular knobs on the lens body, also called lenslets), so that the part of the light that passes through these microlenses (lenslets) is imaged in front of the retina in order to counteract the longitudinal growth of the eye.
  • the lenslets preferably have a positive dioptric additional effect.
  • classic circular lenslets e.g. CN 104678572 B
  • astigmatic WO 2019/166653 A1
  • ring-shaped structures WO 2021/047488 A1
  • spectacle lenses with scatterers e.g. WO 2019/152428 A1
  • a reduction in contrast is brought about in particular by a diffuser structure (light scatterer) as the first and/or second surface structure characteristic.
  • microstructures in the functional area at least partially bring about the reduction in contrast.
  • the microstructures preferably comprise surface roughnesses that cause the optical image to become dull. This dullness then leads to a reduction in contrast.
  • the central main viewing area preferably remains essentially clear, while the reduction in contrast is only generated in the functional area.
  • This reduction in contrast contributes to the fact that the corresponding (peripheral) field of vision provides little or no incentive for the eye to grow in length.
  • This reduction in contrast is particularly effective if the perception (or degree of perception) caused thereby in the area of the reduction in contrast is in the range of at least about 0.5, preferably in the range of at least about 0.7.
  • the perception due to the contrast reduction is not greater than about 0.9, even more preferably not greater than about 0.8.
  • Perception is understood here in particular to be the factor by which the visual acuity (i.e. visual acuity) is reduced, whereby a visual acuity determined to the value 1 in accordance with DIN 58220 Part 3 is assumed as a reference.
  • a perception of 0 ( ⁇ 0.1) means essentially complete occlusion and 1 in principle means complete transparency.
  • the contrast reduction caused by the microstructure in the effective area leads to a haze value (in particular % haze) according to the ASTM D-1003 standard in the range of not more than about 10, preferably in the range of not more than about 2, and wherein preferably the contrast reduction caused by the microstructure in the effective area leads to a haze value according to the ASTM D-1003 standard in the range of at least about 0.1, in particular at least about 0.5.
  • the effective area still has a transmission (in particular a value of a luminous transmittance according to the ASTM D-1003 standard) of at least 85, even more preferably at least 90.
  • a transmission in particular a value of a luminous transmittance according to the ASTM D-1003 standard
  • the spectacle lens does not completely block the light (e.g. absorbs and/or reflects) and thus darkens the field of vision, but that the light is only (partially) scattered.
  • the values for both haze and luminous transmittance according to the ASTM D-1003 standard can be determined or checked, for example, using the “haze-gard plus” measuring device from BYK Additives and Instruments.
  • the first surface structure characteristic comprises microstructures, in particular in the form of microlenses (lenslets), which bring about a first positive dioptric additional effect compared to the central main viewing area, wherein the second surface structure characteristic in particular comprises a progressive surface refractive power which brings about a second positive dioptric additional effect compared to the central main viewing area.
  • the first surface structure characteristic comprises optical scatterers which bring about a reduction in contrast compared to the central main viewing area
  • the second surface structure characteristic comprises a progressive surface refractive power which brings about a second positive dioptric additional effect compared to the central main viewing area
  • the interaction of the first and second surface structure characteristics can occur in various ways.
  • the different surface structure characteristics divide the functional area at least partially in terms of area in such a way that in some areas (i.e. for some viewing points) one surface structure characteristic predominantly or solely dominates or provides the functional effect for myopia control, while alternatively or additionally in other areas the other surface structure characteristic predominantly or solely dominates or provides the functional effect for myopia control.
  • the first surface structure characteristic is formed on the front surface of the spectacle lens and the second surface structure characteristic is formed on the rear surface of the spectacle lens.
  • Such spectacle lenses can be manufactured particularly easily, whereby the first and second surface structure characteristics can interact efficiently without adversely affecting one another.
  • the "front surface” or “rear surface” of the spectacle lens is understood to mean in particular the front surface or rear surface of a spectacle lens base body. This does not always have to correspond to one of the surfaces of the finished spectacle lens. Rather, it is also possible for the spectacle lens base body (e.g. after the front and/or rear surface has been formed) to be provided with one or more coatings.
  • Such coatings can be, for example, protective coatings, cover layers, hard coatings, color coatings, anti-reflective coatings, anti-fog coatings, etc.
  • the functional area comprises at least one combination effect area such that for each viewing point of the spectacle lens within the combination effect area, the functional effect is brought about by the combination of the first and the second surface structure characteristics.
  • the functional area comprises at least a first and/or a second exclusive effect area such that for each viewing point of the spectacle lens within the first or second exclusive action area, the functional effect is brought about solely by the first or second surface structure characteristic.
  • the central main viewing area is completely surrounded by a first exclusive effect area, which is followed by a combination effect area.
  • the first surface structure characteristic particularly preferably comprises microlenses, while the second surface structure characteristic in particular comprises a progressive surface refractive power.
  • microstructures e.g. microlenses/lenslets
  • the functional effect particularly in the form of a positive dioptric additional effect
  • to supplement or (partially) replace their effect towards the periphery of the lens by increasing a progressive surface refractive power (positive dioptric additional effect).
  • This enables an effective and very efficient functional effect for myopia management already close to the central main viewing area, while the slower increase in surface refractive power means that the astigmatic side effects can be kept to a minimum.
  • the formation of secondary images is kept to a minimum or suppressed, particularly in the peripheral area.
  • the spectacle lens comprises: a continuous channel region which extends continuously from an upper edge to a lower edge of the spectacle lens and comprises the central main viewing area; and a combination effect region which borders the continuous channel region horizontally on both sides and extends continuously from the upper to the lower edge of the spectacle lens, wherein an additional dioptric effect of the spectacle lens caused by the second surface structure characteristic increases away from the channel region on both sides of the channel region.
  • the channel region comprises a first upper and a first lower exclusive effect region, in which the additional effect is essentially generated by the first surface structure characteristic, which in particular comprises microlenses, while the second surface structure characteristic comprises a progressive surface refractive power (with positive dioptric additional effect).
  • this variant Compared to lenses whose central zone is completely surrounded by a positive effect through a progressive surface refractive power, this variant with only lateral progression of the surface refractive power improves tolerance due to the significant reduction in distortion in all directions, although the functional effect is implemented very efficiently in all directions by the first surface structure characteristic (e.g. in the form of microlenses) and myopia control is therefore also very effective. This achieves a high level of tolerance while at the same time effectively suppressing myopia progression.
  • the first surface structure characteristic e.g. in the form of microlenses
  • “Lower” and “upper” edge of the spectacle lens are understood to mean an edge section of a lower or upper half, more preferably a lower or upper third, even more preferably a lower or upper quarter, of a spectacle lens surface (front surface and/or back surface) of the spectacle lens.
  • an upper or lower edge refers to: in particular a section of the edge of the entire spectacle lens that limits the uppermost or lowermost 20%, preferably 15%, even more preferably 10%, most preferably 5%, of the vertical height of the spectacle lens.
  • the spectacle lens referred to in this description can in particular be an already edged or ground (finished) spectacle lens or a raw round spectacle lens.
  • the invention relates to a method for producing a spectacle lens, in particular one of the spectacle lenses described here, wherein the method comprises generating the first surface structure characteristic on a front surface of the spectacle lens and generating the second surface structure characteristic on a rear surface of the spectacle lens.
  • the first surface structure characteristic is generated during the casting of a spectacle lens semi-finished product and in particular comprises microlenses.
  • the second surface structure characteristic is generated by grinding the rear surface and in particular comprises a progressive surface refractive power.
  • the invention relates to a use of one of the spectacle lenses described here for compensating a myopic visual impairment and/or for reducing the progression of myopia.
  • Fig. 1 is a schematic representation of individual regions on a spectacle lens according to a preferred embodiment
  • Fig. 2 is a schematic representation of an exemplary
  • Fig. 3 is a schematic cross-sectional view of a spectacle lens front surface to illustrate microlenses as an example of a first surface structure characteristic in a spectacle lens according to a preferred embodiment
  • Fig. 4 is a schematic representation of an exemplary distribution of
  • Microlenses as the first surface structure characteristic in a spectacle lens according to a preferred embodiment.
  • a preferred embodiment of a myopia control lens with dual progression control combines the "lenslets” and “peripheral power increase” approaches, with the “lenslets” approach being located on the front surface of the lens and the “peripheral power increase” approach being located on the back surface of the lens.
  • Example implementations of this preferred embodiment are described below with reference to Figures 1 to 4:
  • Fig. 1 shows a schematic distribution of individual areas on a spectacle lens 10 according to a preferred embodiment.
  • the spectacle lens 10 comprises in particular a central main viewing area 20 with a substantially constant refractive power.
  • the central main viewing area 20 is surrounded by a functional area, which in this case comprises an exclusive effect area 19 and a combination effect area 18.
  • the functional area 18, 19 has an additional functional effect compared to the central main viewing area 20, which in the preferred embodiment shown here comprises at least one additional dioptric effect compared to the central main viewing area 20.
  • the additional functional effect in the functional area 18, 19 is achieved by a Combination of a first surface structure characteristic and a second surface structure characteristic of the spectacle lens 10.
  • the first surface structure characteristic is formed in particular by microlenses, which bring about at least part of the additional dioptric effect in comparison to the central main viewing area 20.
  • the second surface structure characteristic is formed in particular by a progressive surface refractive power, which in turn also brings about at least part of the additional dioptric effect in comparison to the central main viewing area 20.
  • the first surface structure characteristic is particularly preferably formed on the front surface and the second surface structure characteristic on the rear surface of the spectacle lens 10.
  • the functional effect is essentially only generated by the first surface structure characteristic, while in the combination effect range 18 the functional effect is generated by both surface structure characteristics together (i.e. in total).
  • a progressive surface refractive power contributes no more than about 20%, preferably no more than about 10%, most preferably no more than about 5% to the positive dioptric additional effect.
  • each of the two surface structure characteristics contributes at least about 10%, even more preferably at least about 20%, most preferably at least about 25% to the positive dioptric additional effect.
  • the exclusive effect area 19 in this preferred embodiment completely surrounds the central main viewing area 20
  • the combination effect area 18 adjoins the exclusive effect area 19 laterally on both sides.
  • the exclusive effect area 19 and the central main viewing area 20 together form a continuous channel region.
  • This channel region is thus a region which in this embodiment is essentially free of the second surface structure characteristic. In Fig. 2, which is described below, this channel region is shown with the reference number 12.
  • the channel region 12 extends continuously from an upper edge 14 of the spectacle lens 10 to a lower edge 16 of the spectacle lens 10. This channel region 12 is surrounded nasally and temporally by a respective nasal effective section 18n or temporal effective section 18t of the combination effective region 18, which in particular directly border the channel region 12 along a respective nasal channel boundary line 26n or temporal channel boundary line 26t (Fig. 2).
  • Fig. 2 shows a schematic representation of an exemplary variation of the refractive power distribution through the second surface structure characteristic, implemented in particular on the rear surface, in the form of a progressive surface refractive power in a spectacle lens 10 according to a preferred embodiment.
  • This schematic representation could fundamentally correspond in particular to a spectacle lens 10 from Fig. 1.
  • the channel region 12 extends from the upper edge 14 of the spectacle lens 10 to the lower edge 16 of the spectacle lens.
  • the nasal effective section 18n and the temporal effective section 18t border laterally on this channel region 12.
  • the lines shown in addition to the entire edge profile of the spectacle lens in Fig. 2 represent lines (isolines) of the same surface refractive power of the rear surface of the spectacle lens 10.
  • the refractive power distances of adjacent lines in Fig. 2 could each indicate a difference of 0.5 dpt.
  • the entire channel region 12 lies in a region with essentially constant surface refractive power.
  • the spectacle lens 10 in the representation of Fig. 2 preferably has the lowest refractive power in the channel region 12.
  • the surface refractive power increases steadily due to the second surface structure characteristic and reaches its respective maximum in the schematic representation at approximately mid-height in the region of the lateral edges of the spectacle lens 10.
  • the rear surface is designed in particular using freeform technology.
  • the lens 10 in the channel area 12, in particular in the central main viewing area 20, receives the effect necessary to correct the visual impairment in the distance.
  • an increase in effect is incorporated, so that the lens receives an additional effect of 2.5 dpt (second positive dioptric additional effect) due to the second surface structure characteristic, for example temporally at around 25 mm from a center of the central main viewing area 20 and an additional effect of 2.0 dpt (second positive dioptric additional effect) nasally at around 25 mm from the center of the central main viewing area 20.
  • the channel area extends essentially without any additional effect due to the second surface structure characteristic, while a medium increase in effect can be seen at the top and bottom sides.
  • the maximum surface refractive power of the rear surface of the lens in the nasal and temporal effective areas differ from one another by no more than about 3 dpt, preferably no more than about 2 dpt, even more preferably no more than about 1 dpt, most preferably no more than about 0.5 dpt.
  • the maximum surface refractive power of the rear surface of the lens in both the nasal and temporal effective areas differs by at least about 1 dpt, preferably at least about 1.5 dpt, more preferably at least about 2 dpt, even more preferably at least about 2.5 dpt, most preferably at least about 3 dpt, depending on the embodiment and area of application. greater than the minimum refractive power of the back surface of the lens in the canal area 12.
  • the first surface structure characteristic is implemented in particular by microstructures on the front surface of the lens.
  • the microstructures are designed in particular as microlenses 30 (in particular knobs on the lens body) to image the part of the light that passes through these microlenses (lenslets) in front of the retina in order to counteract the longitudinal growth of the eye.
  • the lenslets 30 preferably have a positive dioptric additional effect (first positive dioptric additional effect).
  • first positive dioptric additional effect For example, an additional effect of around 3.5 dpt has proven to be effective. Other effects (e.g. 2 to 5 dpt) are also possible and should have a similar effect.
  • the optical effect of the knobs is created by the refraction at the interface between the lens body and the environment (e.g. air or a protective layer in the area of the knobs).
  • lenslets refers in particular to small, in particular circular areas on the front surface of the lens 32, which differ in their effect from the area around these elements, the so-called basic effect. This effect is achieved by changing the curvature of the front surface in this area.
  • the lenslets have, for example, a diameter of approximately 1 mm, and an effect that differs from the basic effect by approximately 3.5 dpt (first positive dioptric additional effect), and are particularly preferably arranged around the central main viewing area 20 according to the Fibonacci sphere distribution (see Fig.
  • lenslets are preferably already contained in the molds of the semi-finished spectacle lens products.
  • one idea of the present invention is to combine two approaches for spectacle lenses for myopia management.
  • the spectacle lens for Myopia management with such a dual progression control thus includes two designs for myopia control and has, for example, a multitude of additional effect elements on the front surface (microlenses or lenslets) and a rear surface that provides an additional effect in the periphery (e.g. as a progressive surface refractive power).
  • the different concepts of spectacle lenses for myopia control have different optical disadvantages.
  • different optical errors are combined, which means that there is no dominant error that impairs tolerability too much. This means that more effect can be brought to the front of the retina.
  • the invention thus achieves better effectiveness for myopia control through more effect in front of the retina and at the same time better tolerability through an adapted distribution of the optical errors.

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  • 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

En particulier, l'invention concerne un verre de lunettes (10) qui comprend : une région de visualisation principale centrale (20) ayant une puissance de réfraction sensiblement constante ; et une zone fonctionnelle (18 ; 19) qui est adjacente à la zone de visualisation principale centrale (20) des deux côtés au moins horizontalement et qui présente un effet fonctionnel supplémentaire par rapport à la zone de visualisation principale centrale (20), ledit effet fonctionnel supplémentaire ayant au moins un effet dioptrique supplémentaire et/ou une réduction de contraste par rapport à la région de visualisation principale centrale (20), l'effet fonctionnel supplémentaire dans la région active (18, 19) étant produit par une combinaison d'au moins une première caractéristique de structure de surface et d'une seconde caractéristique de structure de surface, qui diffère de la première caractéristique de structure de surface en particulier, du verre de lunettes (10).
PCT/EP2024/061229 2023-04-25 2024-04-24 Verre de lunettes pour la gestion de la myopie au moyen d'un processus de contrôle de progression double Pending WO2024223645A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480027771.1A CN121002428A (zh) 2023-04-25 2024-04-24 用于利用双重发展控制来管理近视的眼镜镜片

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023110569.8 2023-04-25
DE102023110569.8A DE102023110569B3 (de) 2023-04-25 2023-04-25 Brillenglas zum Myopie Management mit dualer Progressionskontrolle, Verfahren sowie Verwendung

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Publication Number Publication Date
WO2024223645A1 true WO2024223645A1 (fr) 2024-10-31

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Country Link
CN (1) CN121002428A (fr)
DE (1) DE102023110569B3 (fr)
WO (1) WO2024223645A1 (fr)

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