EP1421432A1 - Lunettes pour enfant - Google Patents

Lunettes pour enfant

Info

Publication number
EP1421432A1
EP1421432A1 EP02797906A EP02797906A EP1421432A1 EP 1421432 A1 EP1421432 A1 EP 1421432A1 EP 02797906 A EP02797906 A EP 02797906A EP 02797906 A EP02797906 A EP 02797906A EP 1421432 A1 EP1421432 A1 EP 1421432A1
Authority
EP
European Patent Office
Prior art keywords
glasses
children
myopia
blue
blue filter
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.)
Ceased
Application number
EP02797906A
Other languages
German (de)
English (en)
Inventor
Andrea Welk
Helmut Altheimer
Peter Baumbach
Gregor Esser
Walter Haimerl
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
Publication of EP1421432A1 publication Critical patent/EP1421432A1/fr
Ceased legal-status Critical Current

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
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection
    • 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 children's glasses with blue filter glasses.
  • Wearing glasses generally serves to compensate for a refraction anomaly, whereby a distinction is made between myopia (nearsightedness), hyperopia (farsightedness) and astigmatism of the eye. Astigmatism can occur in combination with myopia or hyperopia.
  • An astigmatism of the eye is understood to mean an aberration that manifests itself in the fact that the sagittal tufts near the main beam and the meridional tufts near the main beam result in differently curved scales.
  • Hyperopia is a refractive error of the eye in which parallel light rays only unite behind the retina.
  • the far point is an imaginary point behind the eye.
  • Myopia is a refractive error of the eye, whereby parallel light rays are not united on the retina, but at a point in front of it.
  • the eye is too long in relation to the refractive power (axis myopia) or the refractive power of the cornea and lens is too strong with normal eye length (refractive myopia).
  • the far point of the short-sighted eye is between the eye and infinity.
  • Short-wave (blue) light is refracted more than long-wave (red) light. This effect is called dispersion. It leads to the fact that a viewed object depends on the wavelength at different distances behind the gene lens is shown. The blue image is closer to the eye lens than the red one. In order to focus a close object on the retina, the eye has to accommodate less with blue light than with red light.
  • the object of the invention is to reduce the development of myopia in children by reading or to prevent the development of myopia entirely.
  • the glasses according to the invention are inexpensive to manufacture.
  • the use of such glasses can be limited to children who need such glasses. For example, in children with hyperopia, the use of school books with pages with a blue base color would be counterproductive.
  • the children's glasses according to the invention also have the advantage that, in contrast to, for example, progressive There are no restrictions on the field of vision and visual field for children.
  • the blue filter glasses contain the prescription information necessary for the child. In children without ametropia, the blue filter glasses contain no prescription information, so they have no effect.
  • the use of glasses is also proposed when there is no ametropia in a child.
  • the glasses should rather prevent the occurrence of ametropia or stop their further training.
  • the blue portion of the light transmitted by the glasses increases from top to bottom. This takes into account the fact that a person wearing glasses usually looks into the distance, for example at a school blackboard, through the upper part of the glasses, while he looks nearby, for example at a book, through the lower part.
  • the blue component for preventing a myopia or for preventing the progression of a myopia is therefore more necessary when "looking closely" than when "looking into the distance”.
  • the blue filter can preferably be an edge filter in which the spectral transmittance for wavelengths less than a cut-off wavelength is greater than 80% and for wavelengths greater than the cutoff wavelength is less than 20%.
  • the spectral transmittance of the blue filter is below 500 nm for each wavelength higher than above 500 nm.
  • the children's glasses are preferably used for reading (mainly at school or at home). This offers the possibility of reducing the increase in myopia in children who already have myopia, or preventing the development of myopia in children who are not myopia.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Optical Filters (AREA)

Abstract

L'invention concerne des lunettes pour enfant qui se caractérisent par le fait que leurs verres sont des verres filtrants bleus.
EP02797906A 2001-08-31 2002-09-02 Lunettes pour enfant Ceased EP1421432A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001142479 DE10142479A1 (de) 2001-08-31 2001-08-31 Kinderbrille
DE10142479 2001-08-31
PCT/DE2002/003332 WO2003023497A1 (fr) 2001-08-31 2002-09-02 Lunettes pour enfant

Publications (1)

Publication Number Publication Date
EP1421432A1 true EP1421432A1 (fr) 2004-05-26

Family

ID=7697098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02797906A Ceased EP1421432A1 (fr) 2001-08-31 2002-09-02 Lunettes pour enfant

Country Status (3)

Country Link
EP (1) EP1421432A1 (fr)
DE (1) DE10142479A1 (fr)
WO (1) WO2003023497A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044256A1 (fr) * 2010-09-28 2012-04-05 Singapore Health Services Pte. Ltd. Lentille oculaire
EP3246746A1 (fr) 2016-05-17 2017-11-22 Carl Zeiss Vision International GmbH Verre de lunette et procede de calcul et de fabrication d'un verre de lunette

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07112579B2 (ja) * 1987-11-20 1995-12-06 株式会社アマダ パンチプレス
US5838419A (en) * 1996-02-22 1998-11-17 Holland; Stephen Method and apparatus for treating refractive eye abnormalities
FR2761785B3 (fr) * 1997-04-07 1999-05-14 Dan Ruben Isaac Haiun Lentille de contact correctrice et therapeutique contre les myopies et les strabismes
DE29713395U1 (de) * 1997-07-25 1998-12-03 Mandel Peter Friedrich Brille für die Farb-Therapie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03023497A1 *

Also Published As

Publication number Publication date
WO2003023497A1 (fr) 2003-03-20
DE10142479A1 (de) 2003-04-17

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