CA986343A - Contact lens for correction of ametropia associated with presbyopia - Google Patents

Contact lens for correction of ametropia associated with presbyopia

Info

Publication number
CA986343A
CA986343A CA188,829A CA188829A CA986343A CA 986343 A CA986343 A CA 986343A CA 188829 A CA188829 A CA 188829A CA 986343 A CA986343 A CA 986343A
Authority
CA
Canada
Prior art keywords
ametropia
presbyopia
correction
contact lens
lens
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.)
Expired
Application number
CA188,829A
Other versions
CA188829S (en
Inventor
Carl H. Evans
Original Assignee
CARMA OPTICAL 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 CARMA OPTICAL Inc filed Critical CARMA OPTICAL Inc
Priority to CA188,829A priority Critical patent/CA986343A/en
Application granted granted Critical
Publication of CA986343A publication Critical patent/CA986343A/en
Expired 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
    • G02C7/041—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

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
CA188,829A 1973-12-21 1973-12-21 Contact lens for correction of ametropia associated with presbyopia Expired CA986343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA188,829A CA986343A (en) 1973-12-21 1973-12-21 Contact lens for correction of ametropia associated with presbyopia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA188,829A CA986343A (en) 1973-12-21 1973-12-21 Contact lens for correction of ametropia associated with presbyopia

Publications (1)

Publication Number Publication Date
CA986343A true CA986343A (en) 1976-03-30

Family

ID=4098764

Family Applications (1)

Application Number Title Priority Date Filing Date
CA188,829A Expired CA986343A (en) 1973-12-21 1973-12-21 Contact lens for correction of ametropia associated with presbyopia

Country Status (1)

Country Link
CA (1) CA986343A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102567A (en) * 1976-09-13 1978-07-25 American Optical Corporation Material for fabrication of artificial intraocular lenses and hard contact lenses
US4180308A (en) * 1972-10-02 1979-12-25 Syntex (Usa) Inc. Contact lens
US4401372A (en) 1972-10-02 1983-08-30 Syntex (U.S.A.) Inc. Contact lens
FR2615965A1 (en) * 1987-06-01 1988-12-02 Essilor Int ASPHERIC CONTACT LENS FOR CORRECTION OF PRESBYOPIA

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180308A (en) * 1972-10-02 1979-12-25 Syntex (Usa) Inc. Contact lens
US4401372A (en) 1972-10-02 1983-08-30 Syntex (U.S.A.) Inc. Contact lens
US4102567A (en) * 1976-09-13 1978-07-25 American Optical Corporation Material for fabrication of artificial intraocular lenses and hard contact lenses
FR2615965A1 (en) * 1987-06-01 1988-12-02 Essilor Int ASPHERIC CONTACT LENS FOR CORRECTION OF PRESBYOPIA
EP0298785A1 (en) * 1987-06-01 1989-01-11 ESSILOR INTERNATIONAL Compagnie Générale d'Optique Aspheric contact lens for correction of presbyopia
US5790231A (en) * 1987-06-01 1998-08-04 Cabinet Bonnet -Thirion Aspherical contact lens for correcting presbyopia

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