# US 11,112,621 B2 · Optical device with desensitized rotational angular alignment for astigmatism correction

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- Number: US 11,112,621 B2
- Document ID: US11112621B2
- Status: Granted
- Kind: B2
- Application number: 16/278,815
- Filed: 2019-02-19
- Published: 2020-08-20
- Granted: 2021-09-07
- Earliest claimed: 2019-02-19
- Assignees: Johnson & Johnson Vision Care, Inc.
- Applicants: Johnson & Johnson Vision Care, Inc.
- Inventors: Minghan Chen
- Web page: https://patentgrep.com/patent/US11112621B2

## CPC

- G02C 7/048: {Means for stabilising the orientation of lenses in the eye}
- G02C 2202/02: Mislocation tolerant lenses or lens systems
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

An ophthalmic lens comprises a main body having a toric surface and a spherical surface opposite the toric surface, the main body comprising an eyelid stabilization design structure having a thickness of less than 200 μm, wherein the spherical surface is configured to exhibit a lens spherical power, wherein the toric surface is configured to exhibit a lens cylindrical power that does not fully correct ocular cylindrical power due to astigmatism; and wherein the lens spherical power is configured such that the minimum circle of the ophthalmic lens is on or adjacent the retina of the eye of the wearer at a target angle of alignment.

## Claims

### Claim 1

An ophthalmic lens to be worn on an eye of a patient, comprising: a main body having a toric surface and a spherical surface opposite the toric surface, the main body comprising an eyelid stabilization design structure having a thickness of less than 200 μm, wherein the spherical surface is configured to exhibit a lens spherical power, wherein the toric surface is configured to exhibit a lens cylindrical power that is less than a target cylinder power that would result in substantially full cylinder correction for said patient; and wherein the lens spherical power is configured such that a minimum circle of the ophthalmic lens is on or adjacent the retina of the eye of the patient at a target angle of alignment.

### Claim 2 (depends on 1)

The ophthalmic lens of claim 1, wherein the toric surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 3 (depends on 1)

The ophthalmic lens of claim 1, wherein the spherical surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 4 (depends on 1)

The ophthalmic lens of claim 1, wherein the target angle of alignment is between 0 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 5 (depends on 1)

The ophthalmic lens of claim 1, wherein the target angle of alignment is between 10 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 6 (depends on 1)

The ophthalmic lens of claim 1, wherein the target angle of alignment is between 20 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 7 (depends on 1)

The ophthalmic lens of claim 1, wherein the target angle of alignment is at least 20 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 8

An ophthalmic lens to be worn on an eye of a patient, comprising: a main body having a toric surface and a spherical surface opposite the toric surface, wherein the spherical surface is configured to exhibit a lens spherical power, wherein the toric surface is configured to exhibit a lens cylindrical power based on at least a direction of astigmatism of the eye of the patient and that is less than a target cylindrical power that would result in substantially full cylindrical correction for said patient, and wherein the lens spherical power is configured such that a minimum circle of the ophthalmic lens is on or adjacent the retina of the eye of the patient at a target angle of alignment.

### Claim 9 (depends on 8)

The ophthalmic lens of claim 8, wherein the toric surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 10 (depends on 8)

The ophthalmic lens of claim 8, wherein the spherical surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 11 (depends on 8)

The ophthalmic lens of claim 8, wherein the target angle of alignment is between 0 and 30 degrees measured from an axis parallel to the direction of the astigmatism.

### Claim 12 (depends on 8)

The ophthalmic lens of claim 8, wherein the target angle of alignment is between 10 and 30 degrees measured from an axis parallel to the direction of the astigmatism.

### Claim 13 (depends on 8)

The ophthalmic lens of claim 8, wherein the target angle of alignment is between 20 and 30 degrees measured from an axis parallel to the direction of the astigmatism.

### Claim 14 (depends on 8)

The ophthalmic lens of claim 8, wherein the target angle of alignment is at least 20 degrees measured from an axis parallel to the direction of the astigmatism.

### Claim 15 (depends on 8)

The ophthalmic lens of claim 8, wherein the main body further comprises an eyelid stabilization design structure having a thickness of less than 200 μm.

### Claim 16

An ophthalmic lens to be worn on an eye of a patient, comprising: a main body having a toric surface and a spherical surface opposite the toric surface, wherein the spherical surface is configured to exhibit a lens spherical power that is different from a target cylinder power that would result in substantially full cylinder correction for said patient, wherein the toric surface is configured to exhibit a lens cylindrical power that; and wherein the lens spherical power is configured such that a minimum circle of the ophthalmic lens is on or adjacent the retina of the eye of the patient at a target angle of alignment.

### Claim 17 (depends on 16)

The ophthalmic lens of claim 16, wherein the toric surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 18 (depends on 16)

The ophthalmic lens of claim 16, wherein the spherical surface is a back surface of the main body configured to be disposed on the eye of the patient.

### Claim 19 (depends on 16)

The ophthalmic lens of claim 16, wherein the target angle of alignment is between 0 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 20 (depends on 16)

The ophthalmic lens of claim 16, wherein the target angle of alignment is between 10 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 21 (depends on 16)

The ophthalmic lens of claim 16, wherein the target angle of alignment is between 20 and 30 degrees measured from an axis parallel to a direction of the astigmatism.

### Claim 22 (depends on 16)

The ophthalmic lens of claim 16, wherein the target angle of alignment is at least 20 degrees measured from an axis parallel to a direction of the astigmatism.