JPS578521A - Soft contact lens - Google Patents

Soft contact lens

Info

Publication number
JPS578521A
JPS578521A JP8335680A JP8335680A JPS578521A JP S578521 A JPS578521 A JP S578521A JP 8335680 A JP8335680 A JP 8335680A JP 8335680 A JP8335680 A JP 8335680A JP S578521 A JPS578521 A JP S578521A
Authority
JP
Japan
Prior art keywords
disappear
seams
disinfection
folding seams
folding
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
JP8335680A
Other languages
Japanese (ja)
Inventor
Shinzo Osumi
Hidenori Gonjo
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP8335680A priority Critical patent/JPS578521A/en
Publication of JPS578521A publication Critical patent/JPS578521A/en
Pending 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

Landscapes

  • 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

PURPOSE:To prevent neglection of disinfection and permit sure disinfection by using a soft contact lens (SCL) which consists of a hydrated gel, leaves folding seams after it is flexed but erases the seams when sterilized at 70-150 deg.C in an aqueous sonl. CONSTITUTION:A hydrated gel-like lens is made of a copolymer of 2-hydroxymethyl methacrylate, or N-vinyl pyrolidone and a monomer for crosslinking such as ethylene glycol dimethacrylate. When the resultant lens is removed from the eye by being flexed, and is sterilized at 70-150 deg.C in a physiological salt sonl., the folding seams disappear and a normal visual power is obtained; however, at the low temp. and time at and in which the sterilization is insufficient, the folding seams do not disappear and the visual power is low. Hence, the wearer can disinfect the same accurately without forgetting the disinfection. The folding seams disappear in 10min at 100 deg.C and 30min at 120 deg.C, but at 60 deg.C, it takes as long as 2hr, and at 50 deg.C, the folding seams do not disappear after 3hr.
JP8335680A 1980-06-19 1980-06-19 Soft contact lens Pending JPS578521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8335680A JPS578521A (en) 1980-06-19 1980-06-19 Soft contact lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8335680A JPS578521A (en) 1980-06-19 1980-06-19 Soft contact lens

Publications (1)

Publication Number Publication Date
JPS578521A true JPS578521A (en) 1982-01-16

Family

ID=13800150

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8335680A Pending JPS578521A (en) 1980-06-19 1980-06-19 Soft contact lens

Country Status (1)

Country Link
JP (1) JPS578521A (en)

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