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Intraocular lens and its manufacturing method

An intraocular lens and lens technology, used in intraocular lens, eye implants, other household appliances, etc., can solve the problems of not necessarily ensuring sufficient and effective optical components, difficult to provide a field of view, etc., and achieve excellent secondary cataract. Development, Excellent Manufacturing Efficiency, Ease of Insertion Operation Effect

Inactive Publication Date: 2011-06-08
KOWA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the outer peripheral portion of the intraocular lens taught by Patent Document 3 is an opaque portion, sufficiently effective optical parts cannot necessarily be ensured, which makes it difficult to provide a good field of view

Method used

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  • Intraocular lens and its manufacturing method
  • Intraocular lens and its manufacturing method
  • Intraocular lens and its manufacturing method

Examples

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example

[0124] Tests carried out to demonstrate the technical advantages offered by the intraocular lens and the manufacturing method according to the invention are given below as examples. Of course, the disclosure in these examples should not be construed as limiting the invention in any way.

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Abstract

An intraocular lens having a novel structure including an adequately large effective optical part and producing an excellent suppressing effect on a secondary cataract. At least a part of the lens surfaces (16, 18, 30) of an intraocular lens is cell inducing regions (26, 32) where a large number of linear micro-grooves (28) having depths of 0.01 to 1.0 [mu]m, widths of 0.1 to 2.0 [mu]m, and predetermined lengths, circumferentially extending are directly formed. The micro-grooves (28) are connected in the circumferential direction of the lens surfaces (18, 30) to construct a chaining structure and are periodically arrayed in the radial direction of the lens surfaces (18, 30) to construct a periodic structure. The transmittance to visible light in the cell inducing regions (26, 32) is 60% or more thanks to the formation of the linear micro-grooves (28) over the whole cell inducing regions (26, 32) with no space between the linear micro-grooves.

Description

technical field [0001] The present invention relates to an intraocular lens suitable for use while being accommodated in a lens capsule, and in particular, to an intraocular lens effective in inhibiting secondary cataracts. Background technique [0002] Intraocular lenses designed to replace the lens have been used for some time to treat patients with eye diseases such as cataracts. In a typical procedure, after the lens is extracted and removed from the inside of the capsule through a surgical incision made in ocular tissue such as the cornea (sclera) or the anterior capsule of the lens, an insertion instrument is used to insert the lens through the surgical incision into the eye. The intraocular lens is inserted into the capsule while the lens is folded back onto itself. Once inserted into the capsule, the intraocular lens is arranged inside the capsule, allowing the use of the optics of the intraocular lens, which replaces the function of the lens, and allowing the intra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/16
CPCB29C33/40A61F2002/009B29D11/00326B29D11/023B29L2011/0016A61F2/1613A61F2/16B29D11/00B29D16/00B29C71/04A61F2002/1681
Inventor 小林敦山田克典铃木弘昭
Owner KOWA CO LTD
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