# US 9,039,762 B2 · Accommodating intraocular lens using trapezoidal phase shift

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- Number: US 9,039,762 B2
- Document ID: US9039762B2
- Status: Granted
- Kind: B2
- Application number: 13/042,688
- Filed: 2011-03-08
- Published: 2011-09-29
- Granted: 2015-05-26
- Earliest claimed: 2010-03-23
- Assignees: Novartis AG
- Applicants: Xin Hong; Mutlu Karakelle; Son Tran; Xiaoxiao Zhang; Myoung-Taek Choi
- Inventors: Xin Hong; Mutlu Karakelle; Son Tran; Xiaoxiao Zhang; Myoung-Taek Choi
- Web page: https://patentgrep.com/patent/US9039762B2

## CPC

- A61F 2/1629: {for changing longitudinal position, i.e. along the visual axis when implanted}
- A61F 2/1648: {Multipart lenses}
- A61F 2/1694: {Capsular bag spreaders therefor}
- A61F 2002/1683: {having filiform haptics}
- A61F 2002/1699: {Additional features not otherwise provided for}
- 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 (dental prosthetics A61C)

## Abstract

An accommodating intraocular lens (AIOL) includes an optic adapted to produce a trapezoidal phase shift and a plurality of haptics. Each haptic extends from a haptic-optic junction to at least one transverse arm contacting a capsular bag of the eye, and each haptic has sufficient length and rigidity to stretch a capsular bag of the eye to contact ciliary muscles of the eye. The haptic-optic junctions vault the optic forward relative to the haptics and compression of the haptics by the ciliary muscles moves the anterior optic forward. A combined accommodative power produced by the motion of the anterior optic and the trapezoidal phase shift is at least 0.5 Diopters.

## Claims

### Claim 1

An accommodating intraocular lens (AIOL) adapted for implantation in a posterior chamber of an eye, comprising:
an optic comprising two optical regions having an identical optical power and adapted to produce a trapezoidal phase shift, the trapezoidal phase shift being a linear change between the two regions in the phase shift imparted to incoming light as a function of radius;
a plurality of haptics, each haptic extending from a haptic-optic junction to at least one transverse arm adapted for contacting a capsular bag of the eye and each haptic having sufficient length and rigidity to stretch a capsular bag of the eye to contact ciliary muscles of the eye;
wherein the haptic-optic junctions vault the optic forward relative to the haptics and compression of the haptics by the ciliary muscles exerts a forward force at the optic of at least 1.5 mN, wherein the trapezoidal phase shift augments the visual effect of the forward force to produce a combined effective power change of at least 0.75 Diopters.

### Claim 2 (depends on 1)

The AIOL of claim 1, wherein at least two of the haptics extend along a diameter of the optic and a distance between the transverse arms of the haptics along the diameter is between 9.5 and 11.5 mm.

### Claim 3 (depends on 2)

The AIOL of claim 2, wherein the distance between the transverse arms along the diameter is at least 10 mm.

### Claim 4 (depends on 1)

The AIOL of claim 1, wherein a vault angle of the haptic-optic junctions is at least 5 degrees.

### Claim 5 (depends on 1)

The AIOL of claim 1, wherein the forward force at the optic is at least 1.5 mN when the haptics are compressed inwardly by 0.5 mm.

### Claim 6 (depends on 1)

The AIOL of claim 1, wherein the transverse arms of the haptics extend from a square elbow.

### Claim 7 (depends on 1)

The AIOL of claim 1, wherein the AIOL is a single-piece AIOL formed from a material having a Young's modulus of 0.8 to 3 mPa.

### Claim 8 (depends on 1)

The AIOL of claim 1, further comprising a capsular ring around the haptics, the capsular ring having collapsible sections allowing the capsular ring to conform to the capsular bag as the capsular bag is stretched by the haptics.

### Claim 9

An accommodating intraocular lens (IOL) system, comprising:
an anterior accommodating IOL comprising a positive power anterior optic comprising two optical regions having an identical optical power and adapted to produce a trapezoidal phase shift, the trapezoidal phase shift being a linear change between the two regions in the phase shift imparted to incoming light as a function of radius, and a plurality of anterior haptics on opposite sides of the optic along a haptic diameter, each anterior haptic extending along the haptic diameter from a haptic-optic junction to at least one transverse arm adapted for contacting a capsular bag of the eye and each anterior haptic having sufficient length and rigidity to stretch a capsular bag of the eye to contact ciliary muscles of the eye, wherein the haptic-optic junctions vault the optic forward at a vault angle relative to the anterior haptics and compression of the anterior haptics by the ciliary muscles moves the anterior optic forward, wherein the trapezoidal phase shift augments the visual effect of forward motion of the positive power anterior optic to produce a combined effective power change of at least 0.75 Diopters; and
a posterior IOL comprising a posterior optic and posterior haptics, the posterior haptics extending in a radial direction perpendicular to the haptic diameter, wherein the posterior haptics are compressed when the capsular bag is stretched by the anterior haptics and the compression of the posterior haptics forces the posterior optic forward.

### Claim 10 (depends on 9)

The accommodating IOL system of claim 9, wherein the posterior optic is a negative power optic.

### Claim 11 (depends on 9)

The accommodating IOL system of claim 9, wherein the posterior IOL further comprises a plurality of protrusions around an anterior surface of the posterior IOL, the protrusions extending to an anterior side of the capsular bag.

### Claim 12 (depends on 9)

The accommodating IOL system of claim 9, wherein the vault angle of the haptic-optic junctions is at least 5 degrees.

### Claim 13

An accommodating intraocular lens (AIOL) comprising:
an optic comprising two optical regions having an identical optical power and adapted to produce a trapezoidal phase shift, the trapezoidal phase shift being a linear change between the two regions in the phase shift imparted to incoming light as a function of radius; and
a plurality of haptics, each haptic extending from a haptic-optic junction to a square elbow with a single transverse arm adapted for contacting a capsular bag of the eye extending from the square elbow and each haptic having sufficient length and rigidity to stretch a capsular bag of the eye to contact ciliary muscles of the eye, wherein the haptic-optic junctions vault the optic forward relative to the haptics and compression of the haptics by the ciliary muscles moves the optic forward, and wherein a combined accommodative power produced by the motion of the anterior optic and the trapezoidal phase shift is at least 0.5 Diopters.

### Claim 14 (depends on 13)

The AIOL of claim 13, wherein the combined accommodative power is at least 1.0 Diopters.

### Claim 15 (depends on 13)

The AIOL of claim 13, wherein the optic moves forward at least 0.3 mm when the haptics are compressed by the ciliary muscles.