GB2464505A - Intraocular lens comprising a Fresnel prism - Google Patents

Intraocular lens comprising a Fresnel prism Download PDF

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Publication number
GB2464505A
GB2464505A GB0819040A GB0819040A GB2464505A GB 2464505 A GB2464505 A GB 2464505A GB 0819040 A GB0819040 A GB 0819040A GB 0819040 A GB0819040 A GB 0819040A GB 2464505 A GB2464505 A GB 2464505A
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GB
United Kingdom
Prior art keywords
lens
retina
magnification
fresnel prism
intraocular
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.)
Withdrawn
Application number
GB0819040A
Other versions
GB0819040D0 (en
Inventor
Charles Claoue
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
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Priority to GB0819040A priority Critical patent/GB2464505A/en
Publication of GB0819040D0 publication Critical patent/GB0819040D0/en
Publication of GB2464505A publication Critical patent/GB2464505A/en
Withdrawn legal-status Critical Current

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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
    • A61F2/16—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
    • A61F2/1648—Multipart lenses
    • A61F2/1651—Multipart lenses comprising a telescope
    • 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
    • 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
    • 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
    • A61F2/1654—Diffractive lenses
    • A61F2/1656—Fresnel lenses, prisms or plates
    • 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
    • A61F2002/16965—Lens includes ultraviolet absorber
    • A61F2002/1699—Additional features not otherwise provided for

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

An intraocular device comprises a Fresnel prism which deviates incident light so that the incident light is directed to a healthy part of the retina other than the macula. The lens may also comprise magnifying means. The face of the Fresnel prism may be covered with a smooth surface to form a composite lens. The device may be used for the treatment of age related macular degeneration.

Description

COMBINED FRESNEL DEVIATION AND MAGNIFICATION OPTICAL
INTRAOCULAR DEVICE
This patent application is for the combination of a Fresnel deviation and magnification optical intraocular device for the management of macular disease of the eye.
This invention is a further advance on the previous patent which relates to an intraocular lens (IOL), and in particular to an intraocular lens that can be used to reduce the effects of age-related macular degeneration (ARMD). The details of this are: The present invention is based at least in part on the realisation that, while the treatment of ARMD requires removal of the crystalline lens, the focusing power of the IOL that is used instead can be provided by a conventional lens, while that same lens can be modified so that light is focused on a (healthy) part of the retina that is not the macula. The present invention takes account of the fact that it would be undesirable to use a prism for this purpose, since that would be unnecessarily bulky, and accepts that a Fresnel prism would not normally be used because of image degradation; the latter is a factor of relatively little importance if the macula is anyway degraded. According to the present invention, an intraocular tens comprises, as one face thereof, a Fresnel prism.
The novel lens provides the necessary features within a single unit. It is therefore easier to use and less bulky than any known lOL having the same function. It can be thin and light. Although it will degrade the image, this is a minor disadvantage and, in any case, the retina may not have good resolution.
The lens comprises what is essentially one half of a conventional lens, having a curved surface 1, and an opposed surface 2 in the form of a Fresnel prism.
A lens of the invention may be of conventional size and may be made of any suitable material. General characteristics of such lenses are known. If desired, the novel lens may be made of a hydrophilic material such as polymethyl methacrylate, in which case it may be foldable.
If necessary or desired, a lens of the invention may include one, two or more haptics.
As is known, they may be attached to the body of the lens at its perimeter, and may extend radially or tangentially.
A lens of the invention will usually have only one power. A range of lenses may be produced, each having a different power. Alternatively, "piggy-backing" may be used, by the provision of a supplemental lens that changes the power of a lens according to the invention.
The novel lens may be used in the eye, in either orientation, but it is generally preferred that a smooth face should face the posterior capsule. That face of the lens having the Fresnel prism may be made smooth, by covering it with a translucent material.
A lens of the invention may be used, following removal of the crystalline lens, for the treatment of any macular condition requiring a change of focus. The novel lens is particularly useful for treatment of ARMD. Its function may be visualised by substituting such a lens for the crystalline lens/lOL plus supplementary lens.
This new invention is derived from this in that it includes magnification. The magnification includes all magnification methods including refracting (dioptric), reflectors (catoptncs) and combined lens-mirror systems (catadioptric). This list refers to primary types of optical telescopes and does not name specific eponymous examples such as the Galileon telescope which is a form of dioptric telescope.
In summary this invention is the combination of Fresnel deviation and magnification devises placed within the eye as an intraocular device for the management of macular disease of the eye.

Claims (3)

  1. SClaims 1. An intraocular lens for the treatment of macular disease consisting of an artificial lens to be implanted within the human eye and comprising in addition to an aphakic correction, both a Fresnel prism to deviate the image form diseased to healthy retina and optical magnification to increase the retinal image size.
  2. 2. This invention is distinguished by the combination of image deviation and magnification by an intraocular lens.
  3. 3. This invention is designed to be used in the eyes of patients who have either age related macular disease or some other disease affecting the macula. Such patients have reduced vision due to the central retina being damaged. There are currently two possibilities for improving vision in these patients. The first is to use a magnifying device to increase the image size on the retina. Such magnification is most commonly provided by external magnifying devises but the use of an intraocular magnifying device has been described. The alternative is to deviate the image from the diseased retina to healthy retina. This could be done by a conventional prism although this is likely to be too bulky to be implanted within the eye. The alternative is to use a Fresnel prism and this concept has been patented. To date, there has been no claim for combining a Fresnel prism with an intraocular magnification device such that both are mounted on an intraocular lens and implanted within the eye. * *P * * * * ** * ** * * I. *S S*.. * *SS..... * S .** * . *. . S* * S.
GB0819040A 2008-10-17 2008-10-17 Intraocular lens comprising a Fresnel prism Withdrawn GB2464505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0819040A GB2464505A (en) 2008-10-17 2008-10-17 Intraocular lens comprising a Fresnel prism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0819040A GB2464505A (en) 2008-10-17 2008-10-17 Intraocular lens comprising a Fresnel prism

Publications (2)

Publication Number Publication Date
GB0819040D0 GB0819040D0 (en) 2008-11-26
GB2464505A true GB2464505A (en) 2010-04-21

Family

ID=40097575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0819040A Withdrawn GB2464505A (en) 2008-10-17 2008-10-17 Intraocular lens comprising a Fresnel prism

Country Status (1)

Country Link
GB (1) GB2464505A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10159562B2 (en) 2014-09-22 2018-12-25 Kevin J. Cady Intraocular pseudophakic contact lenses and related systems and methods
US10299910B2 (en) 2014-09-22 2019-05-28 Kevin J. Cady Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US10945832B2 (en) 2014-09-22 2021-03-16 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11109957B2 (en) 2014-09-22 2021-09-07 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11938018B2 (en) 2014-09-22 2024-03-26 Onpoint Vision, Inc. Intraocular pseudophakic contact lens (IOPCL) for treating age-related macular degeneration (AMD) or other eye disorders

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180887A2 (en) * 1984-10-29 1986-05-14 INPROHOLD Establishment Single posterior chamber implantable lens
EP0276331A1 (en) * 1986-12-22 1988-08-03 Guy Meur Intraocular implant for correcting aphakia
US4828558A (en) * 1987-07-28 1989-05-09 Kelman Charles D Laminate optic with interior Fresnel lens
US4846833A (en) * 1988-05-25 1989-07-11 Cumming J S Sealed fresnel intraocular lens
EP0420549A2 (en) * 1989-09-25 1991-04-03 HYMEDIX International, Inc. Corneal lens implant
EP0458508A2 (en) * 1990-05-14 1991-11-27 Iolab Corporation A tuned fresnel lens for multifocal intraocular applications including small incision surgeries
WO2003047466A1 (en) * 2001-11-30 2003-06-12 Rayner Intraocular Lenses Limited Intraocular lens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180887A2 (en) * 1984-10-29 1986-05-14 INPROHOLD Establishment Single posterior chamber implantable lens
EP0276331A1 (en) * 1986-12-22 1988-08-03 Guy Meur Intraocular implant for correcting aphakia
US4828558A (en) * 1987-07-28 1989-05-09 Kelman Charles D Laminate optic with interior Fresnel lens
US4846833A (en) * 1988-05-25 1989-07-11 Cumming J S Sealed fresnel intraocular lens
EP0420549A2 (en) * 1989-09-25 1991-04-03 HYMEDIX International, Inc. Corneal lens implant
EP0458508A2 (en) * 1990-05-14 1991-11-27 Iolab Corporation A tuned fresnel lens for multifocal intraocular applications including small incision surgeries
WO2003047466A1 (en) * 2001-11-30 2003-06-12 Rayner Intraocular Lenses Limited Intraocular lens

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10159562B2 (en) 2014-09-22 2018-12-25 Kevin J. Cady Intraocular pseudophakic contact lenses and related systems and methods
US10299910B2 (en) 2014-09-22 2019-05-28 Kevin J. Cady Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US10842614B2 (en) 2014-09-22 2020-11-24 Onpoint Vision, Inc. Intraocular pseudophakic contact lenses and related systems and methods
US10945832B2 (en) 2014-09-22 2021-03-16 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11109957B2 (en) 2014-09-22 2021-09-07 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11432921B2 (en) 2014-09-22 2022-09-06 Onpoint Vision, Inc. Intraocular pseudophakic contact lenses and related systems and methods
US11571293B2 (en) 2014-09-22 2023-02-07 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11583386B2 (en) 2014-09-22 2023-02-21 Onpoint Vision, Inc. Intraocular pseudophakic contact lens with mechanism for securing by anterior leaflet of capsular wall and related system and method
US11903818B2 (en) 2014-09-22 2024-02-20 Onpoint Vision, Inc. Intraocular pseudophakic contact lenses and related systems and methods
US11938018B2 (en) 2014-09-22 2024-03-26 Onpoint Vision, Inc. Intraocular pseudophakic contact lens (IOPCL) for treating age-related macular degeneration (AMD) or other eye disorders

Also Published As

Publication number Publication date
GB0819040D0 (en) 2008-11-26

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