Opthalmic lens systems
First Claim
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1. An ophthalmic lens system for improving the vision of a patient comprising:
- a first multifocal ophthalmic lens for use with one eye of a patient;
a second multifocal ophthalmic lens for use with the other eye of the patient, said second lens having a power including an intermediate add power for intermediate vision correction for the patient and a maximum add power which is less than an add power required for full near vision correction for the patient;
said second lens providing better visual acuity from intermediate to near distances than said first lens; and
each of said first and second lenses being adapted for implantation in an eye or to be disposed on or in a cornea of an eye.
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Abstract
An ophthalmic lens system for improving the vision of a patient including first and second ophthalmic lenses. Each of these lenses is adapted for implantation in an eye or to be disposed on or in the cornea. The first ophthalmic lens is biased for distance vision and the second ophthalmic lens is biased for intermediate vision. The ophthalmic lenses may be intraocular lenses which are implanted in the eyes of a patient without removal of the natural lens.
274 Citations
42 Claims
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1. An ophthalmic lens system for improving the vision of a patient comprising:
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a first multifocal ophthalmic lens for use with one eye of a patient;
a second multifocal ophthalmic lens for use with the other eye of the patient, said second lens having a power including an intermediate add power for intermediate vision correction for the patient and a maximum add power which is less than an add power required for full near vision correction for the patient;
said second lens providing better visual acuity from intermediate to near distances than said first lens; and
each of said first and second lenses being adapted for implantation in an eye or to be disposed on or in a cornea of an eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ophthalmic lens system for improving the vision of a patient comprising:
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a first multifocal ophthalmic lens for use with one eye of a patient, said first lens having a power including a power for distance vision correction for the patient;
a second multifocal ophthalmic lens for use with the other eye of the patient, said second lens having a power including an intermediate add power for intermediate vision correction for the patient and a maximum power which is less than a full add power required for near vision correction for the patient;
said first lens providing better visual acuity for objects at infinity than the second lens; and
each of said first and second lenses being adapted for implantation in an eye or to be disposed on or in a cornea of an eye. - View Dependent Claims (15, 16, 17, 18)
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19. An ophthalmic lens system for improving the vision of a patient comprising:
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a first intraocular lens for use with one eye of the patient said first lens having an optical axis and first, second and third optical zones arranged radially with respect to the optical axis, the second zone being intermediate the first and third zones and having a greater add power than either of the first and third zones;
a second intraocular lens for use with the other eye of the patient said second lens having an optical axis and first, second and third optical zones arranged radially with respect to the optical axis of the second lens, the second zone of the second lens being intermediate the first and third zones of the second lens and having a greater add power than either of the first and third zones of the second lens;
the maximum add power of any region of the second lens being less than a full add power required for near vision; and
the first lens providing better visual acuity for objects at infinity than the second lens and the second lens providing better visual acuity from intermediate to near distance than the first lens. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An ophthalmic lens system for improving the vision of a patient comprising:
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a first multifocal intraocular lens for use with one eye of a patient, said first intraocular lens having a power including a power required for distance vision correction for the patient;
a second multifocal intraocular lens for use with the other eye of the patient, said second intraocular lens having a power including a maximum power which is less than a full add power required for near vision correction for the patient; and
the first intraocular lens having better visual acuity for objects at infinity than the second intraocular lens and the second intraocular lens having better intermediate visual acuity for at least some intermediate distances than the first intraocular lens. - View Dependent Claims (27, 28, 29)
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30. An ophthalmic lens system comprising:
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first and second intraocular lenses for use with first and second eyes of a patient, respectively, each of said first and second lenses having an optical axis;
the power of each of said first and second intraocular lenses changing along a power curve in a radially outward direction from the associated optical axis and the power curve for said first intraocular lens being different from the power curve for the second intraocular lens; and
the maximum add power of said first and second intraocular lens being less than an add power required for full near vision correction. - View Dependent Claims (31, 32)
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33. A method of correcting the vision of a patient comprising:
placing first and second multifocal ophthalmic lenses on or in the eyes of the patient, respectively, with the first lens having better visual acuity for objects at infinity than the second lens, the second lens providing better visual acuity from intermediate to near distances than the first lens and the maximum power of the second lens being less than an add power required for near vision correction. - View Dependent Claims (34, 35, 36)
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37. A method of correcting the vision of a patient comprising:
implanting first and second intraocular lenses having different optical characteristics in the eyes, respectively, without removing the natural lenses of the patient with each of said first and second lenses having a power which varies between about a far vision power and about an intermediate vision power and with the maximum power of each of the first and second lenses being less than an add power required for near vision for the patient.
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38. A method of correcting the vision of a patient comprising:
placing first and second ophthalmic lenses on or in the eyes of the patient with the first lens being biased for distance vision for the patient and the second lens being biased for intermediate vision. - View Dependent Claims (39, 40)
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41. An ophthalmic lens system for improving the vision of a patient comprising:
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a first multifocal ophthalmic lens for use with one eye of a patient, said first lens being biased for distance vision;
a second multifocal ophthalmic lens for use with the other eye of the patient, said second lens being biased for intermediate vision and having a maximum add power which is less than an add power required for full near vision correction for the patient; and
each of said first and second lenses being adapted for implantation in an eye or to be disposed on or in the cornea. - View Dependent Claims (42)
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Specification