Intraocular lenses for reducing the risk of posterior capsule opacification

Patent metadata

Field	Value
Publication number	US-11504226-B2
Application number	US-201917057096-A
Country	US
Kind code	B2
Filing date	Oct 21, 2019
Priority date	Oct 24, 2018
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

Intraocular lenses for reducing the risk of posterior capsule opacification (PCO) are described herein. PCO can be reduced with an IOL design that increases the pressure at the posterior capsular bend, for example, by including a sharper edge design, an enlarged optical zone, and/or an increased vault height. An example ophthalmic lens can include an optic ( 200 ) including an anterior surface ( 202 ) defining an anterior side of the optic, a posterior surface ( 204 ) defining a posterior side of the optic, and an edge ( 210 ) arranged between the anterior and posterior surfaces. The edge and the posterior surface can form an angle, where the angle is less than about 90 degrees. Additionally, the ophthalmic lens can have an increased vault height. At least one of the angle or the increased vault height be configured to increase pressure on a capsular bend in a subject's eye.

First claim

What is claimed:

1. An ophthalmic lens, comprising:
an optic having a central optical axis and including:
an anterior surface defining an anterior side of the optic,
a posterior surface that opposes the anterior surface and that defines a posterior side of the optic,
a central optical zone disposed about the central optical axis,
an attenuation optical zone disposed about the central optical axis, wherein the attenuation optical zone is contiguous with the central optical zone, and wherein the central and attenuation optical zones define a negative shape factor for the optic,
an edge of the attenuation optical zone arranged between the anterior and posterior surfaces, wherein the edge of the attenuation optical zone and the posterior surface form an angle, wherein the angle is less than about 90 degrees, wherein the ophthalmic lens has a vault height between about 0.35 millimeter (mm) and about 1.5 mm, and wherein a combination of the angle and the vault height is configured to increase pressure on a capsular bend in a subject's eye.

2. The ophthalmic lens of claim 1 , wherein the angle is between about 45 degrees and about 90 degrees.

3. The ophthalmic lens of claim 2 , wherein the angle is less than about 85 degrees and greater than about 45 degrees.

4. The ophthalmic lens of claim 2 , wherein the angle is less than about 80 degrees and greater than about 45 degrees.

5. The ophthalmic lens of claim 2 , wherein the angle is less than about 70 degrees and greater than about 45 degrees.

6. The ophthalmic lens of claim 2 , wherein the angle is less than about 60 degrees and greater than about 45 degrees.

7. The ophthalmic lens of claim 2 , wherein the angle is less than about 50 degrees and greater than about 45 degrees.

8. The ophthalmic lens of claim 2 , wherein a diameter of the anterior side of the optic is less than a diameter of the posterior side of the optic.

9. The ophthalmic lens of claim 1 , wherein a diameter of the optic is between about 6 mm and about 8 mm.

10. The ophthalmic lens of claim 1 , wherein the attenuation optical zone extends radially outward from the central optical zone, the edge of the attenuation optical zone being spaced apart from the central optical zone in an anterior direction along the optical axis.

11. The ophthalmic lens of claim 1 , further comprising a haptic attached to the optic.

Assignees

• Amo Groningen Bv

Inventors

• Rosen Robert
• Weeber Hendrik A
• Canovas Vidal Carmen
• Zonneveld Robin
• Meijer Sieger
• Koopman Bram
• Cannegieter Bart
• Bogaert Theophilus
• Alarcon Heredia Aixa
• State Mihai

Classifications

• A61F2002/009

  for hindering or preventing attachment of biological tissue · CPC title

• A61F2/1618

  Multifocal lenses · CPC title

• A61F2/1613 Primary

  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 · CPC title

• A61F2002/1681

  having supporting structure for lens, e.g. haptics · CPC title

• A61F2/16 Primary

  Intraocular lenses · CPC title