Accommodating intraocular lens having T-shaped haptics

a technology of haptics and accommodating lenses, which is applied in the field of intraocular lenses, can solve the problems of fibrosis tissue pockets that cannot be easily formed, and achieve the effect of increasing the accommodation amplitude of the lens, increasing the optical power of the lens, and thereby the amoun

a technology of haptics and accommodating lenses, which is applied in the field of intraocular lenses, can solve the problems of fibrosis tissue pockets that cannot be easily formed, and achieve the effect of increasing the accommodation amplitude of the lens, increasing the optical power of the lens, and thereby the amoun

US20050267576A1Inactive Publication Date: 2005-12-01THE NICE TRUST
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  • Accommodating intraocular lens having T-shaped haptics
  • Accommodating intraocular lens having T-shaped haptics
  • Accommodating intraocular lens having T-shaped haptics

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Embodiment Construction

[0054] Turning now to these drawings, and first to FIG. 3, there is illustrated a human eye 10 whose natural crystalline lens matrix has been removed from the natural lens capsule of the eye through an anterior opening in the capsule formed by an anterior capsulotomy, in this case a continuous tear circular capsulotomy, or capsulorhexis. As noted earlier, this natural lens matrix, which is normally optically clear, often becomes cloudy and forms a cataract which is cured by removing the matrix and replacing it with an artificial intraocular lens.

[0055] As mentioned earlier, continuous tear circular capsulotomy, or capsulorhexis, involves tearing the anterior capsule along a generally circular tear line in such a way as to form a relatively smooth-edged circular opening in the center of the anterior capsule. The cataract is removed from the natural lens capsule through this opening. After completion of this surgical procedure, the eye includes an optically clear anterior cornea 12, ...

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Abstract

An accommodating intraocular lens having anteriorly and posteriorly movable extended portions, such as T-shaped haptics, extending from a central optic to be implanted within a natural capsular bag of a human eye with the extended portions positioned between an anterior capsular rim and a posterior capsule of the bag, whereby during a post-operative healing period, fibrosis occurs about the extended portions to fixate the lens in the bag in a manner such that subsequent natural contraction and relaxation of the ciliary muscle moves the optic to provide vision accommodation of increased accommodation amplitude and diopters of accommodation.

Description

RELATED APPLICATIONS [0001] This application is a continuation of co-pending application Ser. No. 10 / 454,280 filed on Jun. 3, 2003 which is a continuation of co-pending application Ser. No. 10 / 057,691 filed Jan. 24, 2002, now U.S. Pat. No. 6,638,306, which is a divisional application of application Ser. No. 08 / 858,978 filed May 20, 1997, now U.S. Pat. No. 6,387,126 issued May 14, 2002, which is a continuation-in-part of application Ser. No. 08 / 388,735 filed Feb. 15, 1995, now abandoned. [0002] Reference is made to co-pending application Ser. No. 08 / 640,118, which is a continuation, with intermediate continuation applications of my U.S. Pat. No. 5,476,514. Reference is also made to U.S. Pat. No. 5,496,366. BACKGROUND OF THE INVENTION [0003] This invention relates generally to intraocular lenses to be implanted within a natural capsular bag in the human eye formed by evacuation of the crystalline matrix from the natural lens of the eye through a anterior capsulotomy in the lens. The i...

Claims

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Application Information

Patent Timeline
01 Dec 2005
Publication
US20050267576A1
IPC
A61F2/16
CPC
A61F2/16; A61F2/1629; A61F2/1613; A61F2220/0091; A61F2002/16901; A61F2002/1681
Inventors
CUMMING, J. STUART