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WO1994023327A1 - Lentille de contact conçue pour compenser et corriger les effets de la presbytie - Google Patents

Lentille de contact conçue pour compenser et corriger les effets de la presbytie Download PDF

Info

Publication number
WO1994023327A1
WO1994023327A1 PCT/US1994/003042 US9403042W WO9423327A1 WO 1994023327 A1 WO1994023327 A1 WO 1994023327A1 US 9403042 W US9403042 W US 9403042W WO 9423327 A1 WO9423327 A1 WO 9423327A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact lens
optical
lens according
optical zone
zone
Prior art date
Application number
PCT/US1994/003042
Other languages
English (en)
Inventor
Colin M. Perrott
Original Assignee
Pilkington Barnes Hind, 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 Pilkington Barnes Hind, Inc. filed Critical Pilkington Barnes Hind, Inc.
Priority to EP94912280A priority Critical patent/EP0690997A1/fr
Priority to US08/525,779 priority patent/US5771088A/en
Priority to JP6522141A priority patent/JPH08508588A/ja
Priority to AU64900/94A priority patent/AU6490094A/en
Publication of WO1994023327A1 publication Critical patent/WO1994023327A1/fr

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
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • 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
    • G02C7/042—Simultaneous type
    • 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
    • G02C7/045—Sectorial configuration

Definitions

  • the present invention relates to contact lens designed to accommodate and correct for the effects of presbyopia, myopia and hyperopia and, in particular, to such lenses which are provided with characteristics to compensate for defects associated with peripheral vision.
  • the optics of a lens used to correct vision ideally provide precise refractive correction and do not add to the natural aberrations within the eye.
  • good vision is dependent upon several factors: visual acuity, contrast sensitivity, high defocus perception threshold, good visual performance (speed and accuracy of recognition), tolerance to illuminant intensity, and tolerance to illuminant color.
  • Contact lenses provide an opportunity by which some of these effects are countered by appropriate optical design, since the lens and the eye are in close physical proximity, compared to spectacles, and optical alignment is consequently easier to achieve.
  • visual performance is degraded by contrast and object size reduction and is generally improved by higher illuminant intensity.
  • the illuminant intensity becomes the most dominant factor with respect to visual performance. For instance, a work force in its early forties will require 50 to 100% higher lighting levels than a work force in its early twenties to do the same visual tasks at the same efficiency level. Further, the younger population is highly tolerant to varying light levels, and with age the population becomes very sensitive to light level.
  • the human eye mechanism is designed to operate internally as a sphere, with the surface of the cornea, onto which a contact lens is placed, also being spherical. As will be appreciated, this is not always the case. This lack of sphericity in the surface of the cornea can cause problems in the optical performance of the human eye, as well as in the fitting of contact lenses. Consequently, over the years the industry has disclosed a way of compensating for this by what has become commonly called a toric lens.
  • toric contact lenses are contact lenses which are adapted to optically compensate for the non-sphericity of the cornea of the human eye. This can be done by building optical correction components into the back surface of the contact lens, that is the surface of the contact lens which is in contact with the cornea of the eye when fitted, or in the front surface of the contact lens.
  • One known approach for the design of contact lenses in an attempt to alleviate this problem employs an aspheric front surface on an otherwise conventional contact lens to compensate for the spherical aberration of the eye and therefore decrease the amount of blur such that the paraxial rays can be accommodated.
  • the preferred surface is preferably hyperbolic or parabolic (according to well established convention) and places a higher (approximately by ID) refractive power at the center of the lens, compared to the outer part of the optic zone.
  • this design approach results in a focal spot at the fovea for all rays entering the eye, giving the best depth of field and greatest image clarity.
  • This form of lens fit is known as an "aplanatic fit".
  • the design objective is to create an image of such a quality that blur originating in astigmatic distortion or accommodation loss via presbyopia can be tolerated without specific design attention.
  • the normal response of the eye to intense stimulation of the retinal detectors is a constriction of the iris.
  • the image With a reduced pupil size, the image is formed more or less exclusively at the paraxial focus. It approaches optical perfection. The best vision is always achieved in bright illumination.
  • age With age, the absorption and scattering of light inside the eye steadily reduces the intensity of stimulation at the retina for a given ambient light level and, so, the natural facility of achieving a pure paraxial focus is impaired, unless brighter lighting is used to compensate.
  • An aspect of the aplanatic fit is that the single focal spot is achieved for all pupil sizes. Therefore, the image quality is not degraded at larger pupil sizes.
  • this design concept provides a lens by which the quality of visual focus is made to be essentially independent of illuminant level.
  • the image of a distant object can also be blurred by virtue of spherical aberration, with peripheral rays being focussed in front of the retina.
  • Distant objects viewed by the eye are brought to focus at the fovea via the paraxial regions of the eye.
  • the complete field of proximate objects as close as 1 meter away is also focussed on the retina to some degree by virtue of the aberration.
  • the closest objects are framed via the peripheral focus.
  • the lens designer disables the natural indirect (or peripheral) vision. Only the field to which specific attention is directed is brought to focus. Objects peripheral to this scene will always be out of focus, the more so the closer they are. Response to the indirect field will be suppressed.
  • the present invention is concerned with alleviating this problem whilst providing the benefits of an aplanatic lens fit.
  • a contact lens designed to accommodate and correct for the effects of presbyopia in a wearer, which contact lens has a front surface, and a back surface which is in contact with the cornea of the eye of a wearer in use and which contact lens comprises: a primary or first optical zone which is provided with characteristics to compensate for spherical aberration in the eye of a wearer and has a first refractive power, said first optical zone being sized upon the characteristic of the wearer, and at least one other secondary optical zone having a spherical surface and having an optical refractive power no greater than that of the first optical zone; the configuration being such that at least one other secondary optical zone is provided to provide the wearer with an amount of peripheral vision.
  • FIGS. 1 and 2 illustrate different embodiments of contact lenses of this invention. Detailed Description of the Invention
  • contact lens described herein creates a contact lens which provides maximum clarity to the image with a reduced sensitivity to illuminant levels throughout the range of normally accepted standards of industrial and recreational lighting.
  • the secondary optical zone(s) is designed to preserve the peripheral vision for the wearer in the circumstances where this becomes essential, for example, in dim light or extreme fatigue. Without this feature, the lens would tend to create a tunnel vision effect, preventing the wearer from perceiving peripheral obstacles.
  • each zone provides supplementary intensity for the image held in focus via the other.
  • the difference between the refractive powers of the two zones is up to about 1 diopter, preferably up to about 0.7 to 0.8 diopter.
  • contact lenses made in accordance with the present invention enable a wearer to appreciate the benefits of an aplanatic fit lens in conditions of highlight intensity, whilst in low light or dim conditions appreciate the advantages of having acceptable peripheral vision.
  • the first optical zone comprises a central circular portion having a diameter of between 4 and 6 mm dependent upon the characteristics of the wearer
  • the at least one other secondary optical zone comprises an annular member which circumferentially surrounds said disc-like portion of the first optical zone and has an outer diameter of at least 8 mm.
  • the central optical zone has a diameter of between 4.5 and 5.5 mm
  • the outer optical zone has an outer diameter of at least 8 mm.
  • the front surface of the first optical zone (or central optical zone) has an aspheric curved surface.
  • this aspheric curved surface is parabolic or hyperbolic in shape.
  • the back surface of the first optical zone has an aspheric curved surface.
  • this aspheric curved surface is parabolic or hyperbolic in shape.
  • both the front and rear surfaces of the first optical zone are aspheric, the effects of the asphericity of both of the surfaces will combine to provide, and produce, the required effect in order to reduce the spherical aberration in the eye of the wearer.
  • the reduced effects of spherical aberration are enhanced or brought about by means of the inclusion of a volume of a second optical material in the contact lens.
  • This volume of a second optical material will have different optical properties to that of the remainder of the contact lens, such as a different refractive index.
  • the fusion of materials of different refractive index is described in Summerville, Plastic Contact Lens, Noyes Data Corporation, Park Ridge, New Jersey (1972), especially pages 69-71.
  • the difference in the optical properties between the volume of the second optical material and the material of the remainder of the contact lens can enhance the desired aplanatic effect and/or peripheral vision aspect of the present invention.
  • the volume of the second optical material is encased in the material of the remainder of the contact lens.
  • the volume of the second optical material can be provided as one or more segments of the contact lens which are in contact with at least one side of the material of the remainder of the contact lens.
  • the optical power of the first optical zone (or central optical zone) will vary in the range 0.5 to 0.75 diopters from the center of the contact lens.
  • the present invention can be shaped as a toric contact lens, either the back surface or the front surface of the contact lens or with purely spherical contact lenses.
  • any toricity correction in the contact lens is accommodated into the surface of the lens which is not otherwise optically corrected.
  • the limitation of the optical power variation to the range of 0.5 to 0.75 diopters from the center of the lens places less stringent demand on the eye to accommodate the signals received. Consequently, the lens will be more easily accepted.
  • the at least one other optical zone has an optical power which is between 0 and 1.5 diopters, most preferably 0 and 1 diopter, weaker than that of the first optical zone (or central optical zone).
  • Figure 1 shows a first embodiment of the invention
  • Figure 2 shows a second embodiment of the invention.
  • FIG. 1 With reference to Figure 1, there is shown a first basic design of a contact lens 1 made in accordance with the present invention.
  • the contact lens 1 has an optical zone 2 and a skirt section
  • the optical zone 2 of the contact lens 1 is the part of the contact lens 1 which when the contact lens 1 is correctly mounted on an eye, focuses light onto the retina.
  • the optical zone 2 comprises a central optical zone 4 and an outer optical zone 5 which circumferentially surrounds the central optical zone 4.
  • the central optical zone 4 and the outer optical zone 5 have a common axis about which, or in relation to which, they circumferentially extend.
  • the skirt section 3 is the part of the contact lens which, when the contact lens is on the wearer's eye, overlies at least the outer portion of the iris and a small part of the sclera adjacent the iris.
  • the section 3 helps to provide sufficient adhesion to hold the contact lens in place and in the correct alignment for optimum performance on the wearer's cornea.
  • the skirt section 3 of the contact lens 1 circumferentially surrounds the optical zone 2 so that the central optical zone 4, outer optical zone 5 and skirt section 3 are all coaxial with one another. Consequently, the outer part of the central optical zone 4 is in contact with the inner part of the outer optical zone 5 and the outer part of the outer optical zone 5 is in contact with the inner part of the skirt section 3.
  • the central optical zone 4 is configured to compensate for spherical aberration in the eye of a wearer and is of a refractive optical power O x and the outer optical zone 5 has an optical refractive power which is no greater than O x with a nominally spherical shape.
  • the contact lens 1 has two generic optical zones which are coaxial with each other, these are the optical zone 11 and the skirt section 12 which circumferentially extends around the optical zone 11.
  • the optical zone itself has two distinct areas of refractive optical power. These are the first optical zone 13 and the second optical zone 14.
  • the first optical zone 13 is the zone of the lens which provides the corrective refractive power Og and which has characteristics to compensate for spherical aberration in the eye of the wearer.
  • This zone 13 has an hour glass type shape which is formed by virtue of the fact that the optical zone 11 has diametrically opposed portions cut out from the overall circular configuration.
  • This second optical zone 14 has a refractive power which is no greater than that of the first optical zone 13.
  • the aplanatic type contact lens is designed with an optical power variation of 1 diopter across the lens from its center. With this range of optical power variation the accommodation of the human eye approaches a limit, and in some cases the human eye will not be able to make the necessary accommodation. This will limit the applicability of these lenses.
  • the at least one other optical zone is described as nominally spherical.
  • the other optical zone(s) shows characteristics with regard to light transmission which are far more spherical in behavior than those shown by the first optical zone (or central optical zone).
  • the other optical zone (or outer optical zone) will be spherical in its optical transmission properties.
  • nominal spherical is used to cover this situation and, as such, includes some asphericity.
  • the optical quality of any product is greatly dependent on the optical transmission properties of the material from which it is manufactured.
  • the contact lens is primarily intended for use by presbyopes or immediate prepresbyopes who are exhibiting the effects of presbyopia, and it is affecting their visual performance.
  • it is intended to avoid any unnecessary effects from scattering of the light by the material chosen for the contact lens. Therefore, even though contact lenses made in accordance with the present invention can be manufactured from any of the known materials from which contact lens are made, preferably only those of the highest optical transmission properties are used, for example, CSI (see US Patent Nos. 3,957,362 and 4,056,496) or rigid gas permeable materials.

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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

L'invention concerne une lentille de contact présentant une première zone optique (2) conçue pour compenser l'aberration sphérique, et au moins une zone supplémentaire (3) configurée de manière à donner une meilleure vision périphérique. Généralement, la forme de la première zone optique est conçue pour produire une surface asphérique et celle de la zone supplémentaire pour produire une réfringence ne dépassant pas celle de la première zone, la différence entre les réfringences desdites zones d'excédant pas environ 0,75 dioptrie.
PCT/US1994/003042 1993-03-27 1994-03-22 Lentille de contact conçue pour compenser et corriger les effets de la presbytie WO1994023327A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP94912280A EP0690997A1 (fr) 1993-03-27 1994-03-22 Lentille de contact con ue pour compenser et corriger les effets de la presbytie
US08/525,779 US5771088A (en) 1993-03-27 1994-03-22 Contact lens designed to accommodate and correct for the effects of presbyopia
JP6522141A JPH08508588A (ja) 1993-03-27 1994-03-22 老眼の効果を調整及び補正するように構成したコンタクトレンズ
AU64900/94A AU6490094A (en) 1993-03-27 1994-03-22 Contact lens designed to accommodate and correct for the effects of presbyopia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9306424A GB9306424D0 (en) 1993-03-27 1993-03-27 Contact lens designed to accommodate and correct for the effects of presbyopia
GB9306424.4 1993-03-27

Publications (1)

Publication Number Publication Date
WO1994023327A1 true WO1994023327A1 (fr) 1994-10-13

Family

ID=10732880

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/003042 WO1994023327A1 (fr) 1993-03-27 1994-03-22 Lentille de contact conçue pour compenser et corriger les effets de la presbytie

Country Status (6)

Country Link
EP (1) EP0690997A1 (fr)
JP (1) JPH08508588A (fr)
AU (1) AU6490094A (fr)
CA (1) CA2153492A1 (fr)
GB (1) GB9306424D0 (fr)
WO (1) WO1994023327A1 (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0947462A (ja) * 1995-05-04 1997-02-18 Johnson & Johnson Vision Prod Inc 同心円レンズおよびその設計方法
US5650837A (en) * 1995-05-04 1997-07-22 Johnson & Johnson Vision Products, Inc. Rotationally stable contact lens designs
US5662706A (en) * 1996-06-14 1997-09-02 Pbh, Inc. Variable transmissivity annular mask lens for the treatment of optical aberrations
US5757458A (en) * 1991-11-12 1998-05-26 Pilkington Barnes Hind, Inc. Annular mask contact lenses
WO1998025174A1 (fr) * 1996-12-05 1998-06-11 Bausch & Lomb Incorporated Lentilles de contact ameliorant l'acuite visuelle
US5905561A (en) * 1996-06-14 1999-05-18 Pbh, Inc. Annular mask lens having diffraction reducing edges
FR2772489A1 (fr) * 1997-12-16 1999-06-18 Essilor Int Lentilles ophtalmiques multifocales a aberration spherique variable suivant l'addition et l'ametropie
US5929969A (en) * 1995-05-04 1999-07-27 Johnson & Johnson Vision Products, Inc. Multifocal ophthalmic lens
US5965330A (en) * 1996-12-06 1999-10-12 Pbh, Inc. Methods for fabricating annular mask lens having diffraction-reducing edges
US6244708B1 (en) 1998-09-28 2001-06-12 Bausch & Lomb Incorporated Contact lenses providing improved visual acuity
US7040757B2 (en) 2002-08-06 2006-05-09 Novartis Ag Contact lenses
US7052133B2 (en) 2003-05-21 2006-05-30 Novartis Ag Contact lenses
US7101041B2 (en) 2004-04-01 2006-09-05 Novartis Ag Contact lenses for correcting severe spherical aberration
US7111938B2 (en) 2001-04-27 2006-09-26 Novartis Ag Automatic lens design and manufacturing system
US7133174B2 (en) 2000-03-31 2006-11-07 Coopervision, Inc. Contact lens having a uniform horizontal thickness profile
US7404637B2 (en) 1999-03-01 2008-07-29 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US7497572B2 (en) 2006-07-17 2009-03-03 Novartis Ag Toric contact lenses with controlled optical power profile
US7628810B2 (en) 2003-05-28 2009-12-08 Acufocus, Inc. Mask configured to maintain nutrient transport without producing visible diffraction patterns
US7628485B2 (en) 2000-03-31 2009-12-08 Coopervision International Holding Company, Lp Contact lens having a uniform horizontal thickness profile
WO2013110059A1 (fr) * 2012-01-20 2013-07-25 University Of Rochester Système et procédé de conception de lentilles ophtalmiques guidées par front d'onde
US8864824B2 (en) 2003-06-17 2014-10-21 Acufocus, Inc. Method and apparatus for aligning a mask with the visual axis of an eye
US9005281B2 (en) 2009-08-13 2015-04-14 Acufocus, Inc. Masked intraocular implants and lenses
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask
US9545303B2 (en) 2011-12-02 2017-01-17 Acufocus, Inc. Ocular mask having selective spectral transmission

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011284783B2 (en) * 2010-07-26 2014-07-31 Vision Crc Limited Treating ocular refractive error

Citations (6)

* Cited by examiner, † Cited by third party
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US3472581A (en) * 1966-09-26 1969-10-14 Leonard Bronstein Fused multifocal corneal contact lenses
EP0184490A2 (fr) * 1984-11-26 1986-06-11 Francis Daniel Vinzia Lentille de contact asphérique multifocale
DE8710765U1 (de) * 1987-08-06 1987-09-24 Giefer, Günter, 6056 Heusenstamm Kontaktlinse mit einem zentralen Bereich aus hartem Material und einem Randbereich aus weichem Material
EP0344073A1 (fr) * 1988-05-27 1989-11-29 Pierre Capez Lentille de contact multifocale
EP0440107A2 (fr) * 1990-01-29 1991-08-07 Wesley Jessen Corporation Lentille de contact pour la correction de l'astigmatisme
EP0472291A1 (fr) * 1990-07-24 1992-02-26 JOHNSON & JOHNSON VISION PRODUCTS, INC. Procédé de production de lentilles

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EP0070006A1 (fr) * 1977-08-02 1983-01-19 Automated Optics, Inc. Lentille de contact
US5198844A (en) * 1991-07-10 1993-03-30 Johnson & Johnson Vision Products, Inc. Segmented multifocal contact lens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3472581A (en) * 1966-09-26 1969-10-14 Leonard Bronstein Fused multifocal corneal contact lenses
EP0184490A2 (fr) * 1984-11-26 1986-06-11 Francis Daniel Vinzia Lentille de contact asphérique multifocale
DE8710765U1 (de) * 1987-08-06 1987-09-24 Giefer, Günter, 6056 Heusenstamm Kontaktlinse mit einem zentralen Bereich aus hartem Material und einem Randbereich aus weichem Material
EP0344073A1 (fr) * 1988-05-27 1989-11-29 Pierre Capez Lentille de contact multifocale
EP0440107A2 (fr) * 1990-01-29 1991-08-07 Wesley Jessen Corporation Lentille de contact pour la correction de l'astigmatisme
EP0472291A1 (fr) * 1990-07-24 1992-02-26 JOHNSON & JOHNSON VISION PRODUCTS, INC. Procédé de production de lentilles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SUMMERVILLE: "Fusion of materials of different refractive index", PLASTIC CONTACT LENS, 1972, NEW JERSEY, pages 69 - 71 *

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5786883A (en) * 1991-11-12 1998-07-28 Pilkington Barnes Hind, Inc. Annular mask contact lenses
US5757458A (en) * 1991-11-12 1998-05-26 Pilkington Barnes Hind, Inc. Annular mask contact lenses
US5650837A (en) * 1995-05-04 1997-07-22 Johnson & Johnson Vision Products, Inc. Rotationally stable contact lens designs
US5929969A (en) * 1995-05-04 1999-07-27 Johnson & Johnson Vision Products, Inc. Multifocal ophthalmic lens
JPH0947462A (ja) * 1995-05-04 1997-02-18 Johnson & Johnson Vision Prod Inc 同心円レンズおよびその設計方法
WO1997048005A1 (fr) * 1996-06-14 1997-12-18 Pbh, Inc. Lentille de contact a masque annulaire a transmissivite variable convenant au traitement d'aberrations optiques
US5905561A (en) * 1996-06-14 1999-05-18 Pbh, Inc. Annular mask lens having diffraction reducing edges
US5662706A (en) * 1996-06-14 1997-09-02 Pbh, Inc. Variable transmissivity annular mask lens for the treatment of optical aberrations
WO1998025174A1 (fr) * 1996-12-05 1998-06-11 Bausch & Lomb Incorporated Lentilles de contact ameliorant l'acuite visuelle
US5815239A (en) * 1996-12-05 1998-09-29 Chapman; Judith E. Contact lenses providing improved visual acuity
US5965330A (en) * 1996-12-06 1999-10-12 Pbh, Inc. Methods for fabricating annular mask lens having diffraction-reducing edges
FR2772489A1 (fr) * 1997-12-16 1999-06-18 Essilor Int Lentilles ophtalmiques multifocales a aberration spherique variable suivant l'addition et l'ametropie
EP0926531A1 (fr) * 1997-12-16 1999-06-30 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Lentilles ophtalmiques multifocales à aberration sphérique variable suivant l'addition et l'amétropie
US6145987A (en) * 1997-12-16 2000-11-14 Essilor International Compagnie Generale D'optique Multifocal ophthalmic lenses with spherical aberration varying with the addition and the ametropia
US6244708B1 (en) 1998-09-28 2001-06-12 Bausch & Lomb Incorporated Contact lenses providing improved visual acuity
US7404638B2 (en) 1999-03-01 2008-07-29 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US7404637B2 (en) 1999-03-01 2008-07-29 Boston Innovative Optics, Inc. System and method for increasing the depth of focus of the human eye
US7618142B2 (en) 2000-03-31 2009-11-17 Cooper Vision International Holding Company, Lp Contact lenses
US7133174B2 (en) 2000-03-31 2006-11-07 Coopervision, Inc. Contact lens having a uniform horizontal thickness profile
US7134753B2 (en) 2000-03-31 2006-11-14 Coopervision, Inc. Contact lens having a uniform horizontal thickness profile
US7625084B2 (en) 2000-03-31 2009-12-01 Coopervision International Holding Company, Lp Contact lens
US7628485B2 (en) 2000-03-31 2009-12-08 Coopervision International Holding Company, Lp Contact lens having a uniform horizontal thickness profile
US7762667B2 (en) 2001-04-27 2010-07-27 Novartis Ag Automatic lens design and manufacturing system
US7780293B2 (en) 2001-04-27 2010-08-24 Novartis Ag Automatic lens design and manufacturing system
US7111938B2 (en) 2001-04-27 2006-09-26 Novartis Ag Automatic lens design and manufacturing system
US7775663B2 (en) 2001-04-27 2010-08-17 Novartis Ag Automatic lens design and manufacturing system
US7040757B2 (en) 2002-08-06 2006-05-09 Novartis Ag Contact lenses
US7052133B2 (en) 2003-05-21 2006-05-30 Novartis Ag Contact lenses
US7628810B2 (en) 2003-05-28 2009-12-08 Acufocus, Inc. Mask configured to maintain nutrient transport without producing visible diffraction patterns
US9138142B2 (en) 2003-05-28 2015-09-22 Acufocus, Inc. Masked intraocular devices
US8858624B2 (en) 2003-05-28 2014-10-14 Acufocus, Inc. Method for increasing the depth of focus of a patient
US8864824B2 (en) 2003-06-17 2014-10-21 Acufocus, Inc. Method and apparatus for aligning a mask with the visual axis of an eye
US7101041B2 (en) 2004-04-01 2006-09-05 Novartis Ag Contact lenses for correcting severe spherical aberration
US7497572B2 (en) 2006-07-17 2009-03-03 Novartis Ag Toric contact lenses with controlled optical power profile
US9005281B2 (en) 2009-08-13 2015-04-14 Acufocus, Inc. Masked intraocular implants and lenses
US9492272B2 (en) 2009-08-13 2016-11-15 Acufocus, Inc. Masked intraocular implants and lenses
US9545303B2 (en) 2011-12-02 2017-01-17 Acufocus, Inc. Ocular mask having selective spectral transmission
WO2013110059A1 (fr) * 2012-01-20 2013-07-25 University Of Rochester Système et procédé de conception de lentilles ophtalmiques guidées par front d'onde
US9925038B2 (en) 2012-01-20 2018-03-27 University Of Rochester System and method for designing wavefront-guided ophthalmic lenses
US9204962B2 (en) 2013-03-13 2015-12-08 Acufocus, Inc. In situ adjustable optical mask
US9603704B2 (en) 2013-03-13 2017-03-28 Acufocus, Inc. In situ adjustable optical mask
US10350058B2 (en) 2013-03-13 2019-07-16 Acufocus, Inc. In situ adjustable optical mask
US10939995B2 (en) 2013-03-13 2021-03-09 Acufocus, Inc. In situ adjustable optical mask
US11771552B2 (en) 2013-03-13 2023-10-03 Acufocus, Inc. In situ adjustable optical mask
US9427922B2 (en) 2013-03-14 2016-08-30 Acufocus, Inc. Process for manufacturing an intraocular lens with an embedded mask

Also Published As

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GB9306424D0 (en) 1993-05-19
AU6490094A (en) 1994-10-24
EP0690997A1 (fr) 1996-01-10
JPH08508588A (ja) 1996-09-10
CA2153492A1 (fr) 1994-10-13

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