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WO2024145395A1 - Lentille ophtalmique avec centres de diffusion de lumière de transition pour la gestion de la myopie - Google Patents

Lentille ophtalmique avec centres de diffusion de lumière de transition pour la gestion de la myopie Download PDF

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Publication number
WO2024145395A1
WO2024145395A1 PCT/US2023/086097 US2023086097W WO2024145395A1 WO 2024145395 A1 WO2024145395 A1 WO 2024145395A1 US 2023086097 W US2023086097 W US 2023086097W WO 2024145395 A1 WO2024145395 A1 WO 2024145395A1
Authority
WO
WIPO (PCT)
Prior art keywords
zone
scattering
lens
ophthalmic lens
scattering centers
Prior art date
Application number
PCT/US2023/086097
Other languages
English (en)
Inventor
Peter Hones
Ebrahim ABOUALIZADEH
Original Assignee
Sightglass Vision, Inc.
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 Sightglass Vision, Inc. filed Critical Sightglass Vision, Inc.
Publication of WO2024145395A1 publication Critical patent/WO2024145395A1/fr

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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
    • G02C7/022—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
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses

Definitions

  • the eye lens in each of the various shapes that the eye lens can adopt, optimally or near-optimally, focuses light emitted by, or reflected from external objects that lie within a certain range of distances from the eye, and less optimally focuses, or fails to focus objects that lie outside that range of distances.
  • the axial length of the eye, or distance from the lens to the surface of the retina corresponds to a focal length for near-optimal focusing of distant objects.
  • the eyes of normal-sighted individuals focus distant objects without nervous input to muscles which apply forces to alter the shape of the eye lens, a process referred to as “accommodation.” Closer, nearby objects are focused, by normal individuals, as a result of accommodation.
  • myopic individuals suffer from eye-length-related disorders, such as myopia (“nearsightedness”).
  • myopic individuals the axial length of the eye is longer than the axial length required to focus distant objects without accommodation.
  • myopic individuals can view near objects clearly, but objects further away are blurry.
  • myopic individuals are generally capable of accommodation, the average distance at which they can focus objects is shorter than that for normal-sighted individuals.
  • infants are born hyperopic, with eye lengths shorter than needed for optimal or near-optimal focusing of distant objects without accommodation.
  • random jitter can be applied to patterns (e.g., to the scattering centers size and/or spacing). Such randomization can reduce undesirable optical effects associated with uniform arrays of optical features (e.g., diffractive or interference effects). For instance, random jitter can be used to reduce glare experienced by the user. It can also reduce conspicuity of patterns to third parties by reducing diffractive or interference effects in reflection. [0013] Disclosed embodiments feature devices with subtly arranged patterns for mitigating eye lengthening. These devices can be efficiently and economically formed on conventional ophthalmic lenses, for example by forming scattering centers on a surface or in the bulk of the lens.
  • FIG.1A shows a pair of spectacles containing ophthalmic lenses for treating myopia and reducing myopia progression.
  • FIG.1B shows a portion of an array of scattering centers for the ophthalmic lenses shown in FIG.1A.
  • FIG.1C shows scattering centers with random displacements from uniform spacing.
  • FIG.2A shows an example of a pre-edged spectacle lens for treating myopia and managing myopia progression that includes a light diffusion area with a transition zone.
  • FIG.2B is a plot showing the density of scattering centers through an example light diffusion area as a function of radius for the spectacle lens shown in FIG.2A.
  • FIG.2C is a plot showing the density of scattering centers through another example light diffusion area as a function of radius for the spectacle lens shown in FIG.2A.
  • FIG.2D is a plot showing the density of scattering centers through yet another example light diffusion area as a function of radius for the spectacle lens shown in FIG.2A.
  • FIG.2E is a plot showing the density of scattering centers through a further example light diffusion area as a function of radius for the spectacle lens shown in FIG.2A.
  • FIG.2F is a plot showing the density of scattering centers through a yet further example light diffusion area as a function of radius for the spectacle lens shown in FIG.2A.
  • FIG.3A shows another example of a pre-edged spectacle lens for treating myopia and reducing myopia progression that includes a light diffusion area with a transition zone.
  • FIG.3B is a plot showing the density of scattering centers through an example light diffusion area as a function of radius for the spectacle lens shown in FIG.3A.
  • the areal density of the scattering centers can be in a range from 5% to 80% (e.g., 10% or more, 12% or more, 15% or more, 18% or more, 20% or more, 22% or more, 25% or more, 28% or more, 30% or more, 32% or more, 35% or more, 38% or more, 40% or more, 45% or more, such as 70% or less, 60% or less, 50% or less).
  • the scattering center density is calculated for areas of 1 mm 2 or more.
  • transparent beads of appropriate size can be dispersed in the lens material when the lens is molded, where the refractive index of the bead material and bulk lens material differ.
  • a clear aperture can be formed from bulk lens material only.
  • the refractive index of each scattering center can be the same or different.
  • the scattering centers are each formed from the same material, each one can have the same refractive index.
  • the refractive index can vary from scattering center to scattering center or between different groups of scattering centers.
  • scattering center patterns can be optimized empirically, e.g., based on physical measurements of lenses with different scattering center patterns.
  • wide-angle light scattering can be characterized based on haze measurements, such as international test standards for haze (e.g., ASTM D1003 and BS EN ISO 13468).
  • Conventional haze meters can be used, e.g., a BYK-Gardner haze meter (such as the Haze-Gard Plus instrument) that measures how much light is totally transmitted through a lens, the amount of light transmitted undisturbed (e.g., within 0.5 deg.), how much is deflected more than 2.5 deg., and clarity (amount within 2.5 deg.).
  • each scattering center has a maximum dimension of 1 mm or less (e.g., 0.8 mm or less, 0.5 mm or less, 0.4 mm or less, 0.2 mm or less, e.g., 0.01 mm or more, 0.03 mm or more, 0.05 mm or more, 0.07 mm or more, 0.1 mm or more, 0.15 mm or more).
  • a size of the scattering centers increases monotonically from the central point to the first zone along at least one radial direction.
  • the size of the scattering centers increases monotonically from the central point to the first zone along each radial direction.

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)
  • Optical Elements Other Than Lenses (AREA)

Abstract

Des lentilles ophtalmiques destinées à réduire la progression de la myopie sont divulguées. La lentille ophtalmique comprend un corps de lentille ayant une première surface incurvée et une seconde surface incurvée, le corps de lentille ayant un point central ; une zone de diffusion de lumière, la zone de diffusion de lumière comprenant une pluralité de centres de diffusion dimensionnés et formés pour diffuser la lumière incidente, une densité des centres de diffusion variant sur la zone de diffusion de lumière. La zone de diffusion de lumière comprend une première zone entourant le point central, la première zone ayant la densité la plus élevée de centres de diffusion de la zone de diffusion de lumière ; et une seconde zone entre la première zone et le point central, la seconde zone ayant une densité de centres de diffusion inférieure à la première zone. La seconde zone s'étend jusqu'à un point sur la lentille de 15 mm ou plus à partir du point central dans au moins une direction radiale mesurée à partir du point central.
PCT/US2023/086097 2022-12-29 2023-12-27 Lentille ophtalmique avec centres de diffusion de lumière de transition pour la gestion de la myopie WO2024145395A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263436028P 2022-12-29 2022-12-29
US63/436,028 2022-12-29

Publications (1)

Publication Number Publication Date
WO2024145395A1 true WO2024145395A1 (fr) 2024-07-04

Family

ID=91719312

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/086097 WO2024145395A1 (fr) 2022-12-29 2023-12-27 Lentille ophtalmique avec centres de diffusion de lumière de transition pour la gestion de la myopie

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160262876A1 (en) * 2015-03-09 2016-09-15 Charles DeBoer Intraocular Lens with Enhanced Depth of Focus and Reduced Aberration
US20210165244A1 (en) * 2018-01-30 2021-06-03 Sightglass Vision, Inc. Ophthalmic lenses with light scattering for treating myopia
US20220011602A1 (en) * 2018-11-30 2022-01-13 Sightglass Vision, Inc. Light scattering lens for treating myopia and eyeglasses containing the same
US20220035179A1 (en) * 2018-07-12 2022-02-03 Sightglass Vision, Inc. Methods and devices for reducing myopia in children
US20220146857A1 (en) * 2019-03-01 2022-05-12 Sightglass Vision, Inc. Ophthalmic lenses for reducing myopic progression and methods of making the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160262876A1 (en) * 2015-03-09 2016-09-15 Charles DeBoer Intraocular Lens with Enhanced Depth of Focus and Reduced Aberration
US20210165244A1 (en) * 2018-01-30 2021-06-03 Sightglass Vision, Inc. Ophthalmic lenses with light scattering for treating myopia
US20220035179A1 (en) * 2018-07-12 2022-02-03 Sightglass Vision, Inc. Methods and devices for reducing myopia in children
US20220011602A1 (en) * 2018-11-30 2022-01-13 Sightglass Vision, Inc. Light scattering lens for treating myopia and eyeglasses containing the same
US20220146857A1 (en) * 2019-03-01 2022-05-12 Sightglass Vision, Inc. Ophthalmic lenses for reducing myopic progression and methods of making the same

Also Published As

Publication number Publication date
TW202429162A (zh) 2024-07-16

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