CA2248624A1 - Verres de contact - Google Patents

Verres de contact

Info

Publication number
CA2248624A1
CA2248624A1 CA002248624A CA2248624A CA2248624A1 CA 2248624 A1 CA2248624 A1 CA 2248624A1 CA 002248624 A CA002248624 A CA 002248624A CA 2248624 A CA2248624 A CA 2248624A CA 2248624 A1 CA2248624 A1 CA 2248624A1
Authority
CA
Canada
Prior art keywords
lens
posterior
local surface
contact lens
cornea
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.)
Granted
Application number
CA002248624A
Other languages
English (en)
Other versions
CA2248624C (fr
Inventor
David M. Lieberman
Jon Grierson
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.)
Scientific Optics Inc
Original Assignee
Individual
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
Priority claimed from US08/777,470 external-priority patent/US5880809A/en
Application filed by Individual filed Critical Individual
Priority claimed from PCT/US1997/005279 external-priority patent/WO1997034185A1/fr
Publication of CA2248624A1 publication Critical patent/CA2248624A1/fr
Application granted granted Critical
Publication of CA2248624C publication Critical patent/CA2248624C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/047—Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae
    • 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
    • G02C7/024—Methods of designing ophthalmic lenses
    • G02C7/028—Special mathematical design techniques
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Eyeglasses (AREA)
CA002248624A 1996-03-15 1997-03-17 Verres de contact Expired - Fee Related CA2248624C (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US61841296A 1996-03-15 1996-03-15
US08/618,412 1996-03-15
US08/777,470(CON) 1996-12-30
US08,777,470 1996-12-30
US08/777,470 US5880809A (en) 1996-12-30 1996-12-30 Contact lens
PCT/US1997/005279 WO1997034185A1 (fr) 1996-03-15 1997-03-17 Verres de contact

Publications (2)

Publication Number Publication Date
CA2248624A1 true CA2248624A1 (fr) 1997-09-18
CA2248624C CA2248624C (fr) 2007-01-23

Family

ID=37684473

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002248624A Expired - Fee Related CA2248624C (fr) 1996-03-15 1997-03-17 Verres de contact

Country Status (1)

Country Link
CA (1) CA2248624C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114545659A (zh) * 2022-03-03 2022-05-27 上海艾康特医疗科技有限公司 角膜接触镜及其设计方法
EP4249993A4 (fr) * 2021-06-18 2024-09-04 Gino Optical (Shanghai) Co., Ltd. Lentille d'addition progressive à élimination d'astigmatisme de surface de forme libre zonée et procédé de conception

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4249993A4 (fr) * 2021-06-18 2024-09-04 Gino Optical (Shanghai) Co., Ltd. Lentille d'addition progressive à élimination d'astigmatisme de surface de forme libre zonée et procédé de conception
CN114545659A (zh) * 2022-03-03 2022-05-27 上海艾康特医疗科技有限公司 角膜接触镜及其设计方法
CN114545659B (zh) * 2022-03-03 2024-09-13 上海艾康特医疗科技有限公司 角膜接触镜及其设计方法

Also Published As

Publication number Publication date
CA2248624C (fr) 2007-01-23

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed