JPS6458252A - Intraocular lens - Google Patents

Intraocular lens

Info

Publication number
JPS6458252A
JPS6458252A JP21713687A JP21713687A JPS6458252A JP S6458252 A JPS6458252 A JP S6458252A JP 21713687 A JP21713687 A JP 21713687A JP 21713687 A JP21713687 A JP 21713687A JP S6458252 A JPS6458252 A JP S6458252A
Authority
JP
Japan
Prior art keywords
optical
ligature
notch
members
refractive power
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.)
Pending
Application number
JP21713687A
Other languages
Japanese (ja)
Inventor
Isao Matsumura
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP21713687A priority Critical patent/JPS6458252A/en
Publication of JPS6458252A publication Critical patent/JPS6458252A/en
Pending legal-status Critical Current

Links

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

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

PURPOSE:To obtain an intraocular lens capable of changing refractive power during or after operation, by providing an optical part formed of an elastic optical material, the notch part provided to a part of the surface of the optical part and a ligature member legating the notch part. CONSTITUTION:This lens is formed from an optical part 1 formed of an elastic optical material, two loops 2 extending from the optical part 1 to the periphery, the notch part 3a provided to the surface of the optical part 1 concentrically and a plurality of ligature members 4a connecting the notch part 3a and the surface of the optical part 1 is held to a predetermined shape. A spring material 5 is embedded in the ligature member 4a composed of the elastic optical material and the ligature members 4a are stretched by the force of the spring material 5 by imparting heat to said members 4a and the notch interval of the notch part 3a is widened to make it possible to change the refractive power of the lens. That is, when the ligature members 4a are heated by laser beam after operation, the refractive power of the intraocular lens can be freely changed inclusive of a degree of astigmatism. Therefore, even when the correction error of a refractive index is generated by operation, a desired refraction corrected value can be always obtained.
JP21713687A 1987-08-31 1987-08-31 Intraocular lens Pending JPS6458252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21713687A JPS6458252A (en) 1987-08-31 1987-08-31 Intraocular lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21713687A JPS6458252A (en) 1987-08-31 1987-08-31 Intraocular lens

Publications (1)

Publication Number Publication Date
JPS6458252A true JPS6458252A (en) 1989-03-06

Family

ID=16699418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21713687A Pending JPS6458252A (en) 1987-08-31 1987-08-31 Intraocular lens

Country Status (1)

Country Link
JP (1) JPS6458252A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017029344A (en) * 2015-07-31 2017-02-09 株式会社ニデック Intraocular lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017029344A (en) * 2015-07-31 2017-02-09 株式会社ニデック Intraocular lens

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