Patent US4898461A successfully refreshed from Google Patents.
US4898461A
Expired / Lapsed
US
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Multifocal ophthalmic lens
Assignee: Johnson and Johnson Surgical Vision Inc
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Filing: 1989-06-14
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Granted: 1990-02-06
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Expires: 2009-06-14
Abstract
Abstract An improved opthalmic lens is disclosed which has a plurality of alternating power zones with a continously varying power within each zone, as well as in transition from one zone to another. In other words, a plurality of concentric zones (at least two) are provided in which the variation from far to near vision correction is continuous, i.e., from near correction focal power to far correction focal power, then back to near, and again back to far, or vice versa. This change is continuous (progressive), without any abrupt correction changes, or "edges". Two versions of the invention are disclosed. In the first version continuous, alternating power variation is accomplished by a continuously changing curvature of the lens posterior surface, thereby altering the angle of impact of light rays on the eye. In the second version continuous, alternating power variation is accomplished by creating non-homogeneous surface characteristics having refractive material indexes which continuously vary in the lens radial direction (out from the optical axis).
Inventors
- 👤 Valdemar Portney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:05
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/145; A61F2/16; A61F2/1613; A61F2/1616; A61F2/1618; G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/041; G02C7/042; G02C7/044
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
106 words
An ophthalmic lens which is adapted to be carried by the eye and which has a surface providing variable vision correction power; the correction power being caused to vary continuously and progressively from a first vision correction value to a second vision correction value and then back to the first vision correction value, passing through an intermediate vision correction value within each such continuous variation; each cycle of such continuous variation from one value to the other and then back to the first being repeated in a plurality of zones starting near the center of the lens and continuing through progressively increasing distances from the center.
Claim 2
Dependent Claim
106 words
An ophthalmic lens which is adapted to be carried by the eye and which has a surface providing variable vision correction power; the correction power being caused to vary continuously and progressively from a first vision correction value to a second vision correction value and then back to the first vision correction value, passing through an intermediate vision correction value within each such continuous variation; each cycle of such continuous variation from one value to the other and then back to the first being repeated in a plurality of zones starting near the center of the lens and continuing through progressively increasing distances from the center.
Claim 3
Dependent Claim
39 words
The ophthalmic lens of claim 1 in which the cross-sectional shape of its anterior and/or its posterior surface is an undulating curve which alternates smoothly between peaks and valleys, each peak and valley providing the intermediate vision correction value.
Claim 4
Dependent Claim
24 words
The ophthalmic lens of claim 2 in which the surface whose cross-sectional shape is an undulating curve is the posterior surface of the lens.
Claim 5
Dependent Claim
24 words
The ophthalmic lens of claim 2 in which the surface whose cross-sectional shape is an undulating curve is the anterior surface of the lens.
Claim 6
Dependent Claim
34 words
The ophthalmic lens of claim 2 in which the lens has at least two annular zones, each zone extending from one peak to the next peak, or from one valley to the next valley.
Claim 7
Dependent Claim
31 words
The ophthalmic lens of claim 1 in which both the anterior and posterior surfaces are arcuate, but at least one of them has a continuously and progressively varying index of refraction.
Claim 8
Dependent Claim
24 words
The ophthalmic lens of claim 6 in which the surface having the continuously varying index of refraction is the anterior surface of the lens.
Claim 9
Dependent Claim
23 words
The ophthalmic lens of claim 1 in which the lens is a lens adapted to be located on the surface of the eye.
Claim 10
Dependent Claim
22 words
The ophthalmic lens of claim 1 in which the lens is an implant lens adapted to be permanently retained within the eye.
Claim 11
Dependent Claim
122 words
An ophthalmic lens configured to be inserted in or onto an individual's eye in order to provide vision correction over a wide range of viewing distances, the lens comprising: (a) a lens body having an optical axis and having an anterior face and a posterior face, one of said faces having first and second annular zones which are arranged in a concentric manner around said optical axis; and (b) means for providing in each of said first and second zones a first region having a first vision correction power and a second region having a second vision correction power which is significantly different from said first vision correction power, the vision correction power between the first and second optical powers being progressive.
Claim 12
Dependent Claim
122 words
An ophthalmic lens configured to be inserted in or onto an individual's eye in order to provide vision correction over a wide range of viewing distances, the lens comprising: (a) a lens body having an optical axis and having an anterior face and a posterior face, one of said faces having first and second annular zones which are arranged in a concentric manner around said optical axis; and (b) means for providing in each of said first and second zones a first region having a first vision correction power and a second region having a second vision correction power which is significantly different from said first vision correction power, the vision correction power between the first and second optical powers being progressive.
Claim 13
Dependent Claim
22 words
The ophthalmic lens of claim 10, wherein the lens is configured as a contact lens to be worn on an individual's eye.
Claim 14
Dependent Claim
22 words
The ophthalmic lens of claim 10, wherein the lens is configured as an intraocular lens to be inserted into an individual's eye.
Claim 15
Dependent Claim
25 words
The ophthalmic lens of claim 10, wherein each of said first and second zones has a width which is smaller than a typical pupil diameter.
Claim 16
Dependent Claim
127 words
An ophthalmic lens configured to be inserted in or onto an individual's eye in order to provide substantially continuous vision correction over a wide range of viewing distances, the lens comprising: (a) a lens body having an optical axis and having an anterior face and a posterior face; and (b) means for providing on one of said anterior or posterior faces, concentrically relative to said optical axis, a generally repetitive pattern comprising a number of radially outwardly alternating, annular regions or high and low vision correction powers, said regions of high and low vision correction powers being interconnected in an optical sense by transition regions, each of said transition regions having a range of progressive intermediate vision correction powers between the high and low vision correction powers.
Claim 17
Dependent Claim
127 words
An ophthalmic lens configured to be inserted in or onto an individual's eye in order to provide substantially continuous vision correction over a wide range of viewing distances, the lens comprising: (a) a lens body having an optical axis and having an anterior face and a posterior face; and (b) means for providing on one of said anterior or posterior faces, concentrically relative to said optical axis, a generally repetitive pattern comprising a number of radially outwardly alternating, annular regions or high and low vision correction powers, said regions of high and low vision correction powers being interconnected in an optical sense by transition regions, each of said transition regions having a range of progressive intermediate vision correction powers between the high and low vision correction powers.
Claim 18
Dependent Claim
32 words
The ophthalmic lens of claim 14, wherein the regions of high, low, and intermediate vision correction powers are formed by varying the physical curvature of said lens face in an appropriate manner.
Claim 19
Dependent Claim
39 words
The ophthalmic lens of claim 14, wherein said lens face comprises at least four generally annular regions of high optical pwers and at least four generally annular regions of low optical powers within a diameter of about 5 mm.
Claim 20
Dependent Claim
112 words
A multifocal contact lens comprising: (a) a contact lens body having an optical axis and having a positively curved anterior face and a negatively curved posterior face; and (b) means for providing on said posterior face concentrically relative to said optical axis and in a pupil region of the lens, a generally repetitive pattern comprising at least four sets of radially outwardly alternating, annular regions of high and low vision correction powers, said regions of high and low vision correction powers being interconnected by optical transition regions, each of said optical transition regions having a range of intermediate optical powers which varies smoothly between the interconnected high and low vision correction powers.
Claim 21
Dependent Claim
112 words
A multifocal contact lens comprising: (a) a contact lens body having an optical axis and having a positively curved anterior face and a negatively curved posterior face; and (b) means for providing on said posterior face concentrically relative to said optical axis and in a pupil region of the lens, a generally repetitive pattern comprising at least four sets of radially outwardly alternating, annular regions of high and low vision correction powers, said regions of high and low vision correction powers being interconnected by optical transition regions, each of said optical transition regions having a range of intermediate optical powers which varies smoothly between the interconnected high and low vision correction powers.
Claim 22
Dependent Claim
110 words
A multifocal intraocular lens which comprises: (a) an intraocular lens body having an optical axis, an anterior face and a posterior face; and (b) means for providing on one of said anterior and posterior faces, concentrically relative to said optical axis and in a pupil region of the lens, a generally repetitive pattern comprising at least four sets of radially outwardly alternating, annular regions of high and low vision correction powers, said regions of high and low optical powers being interconnected by optical transition regions, each of said optical transition regions having a range of intermediate vision correction powers which varies smoothly between the interconnected high and low optical powers.
Claim 23
Dependent Claim
110 words
A multifocal intraocular lens which comprises: (a) an intraocular lens body having an optical axis, an anterior face and a posterior face; and (b) means for providing on one of said anterior and posterior faces, concentrically relative to said optical axis and in a pupil region of the lens, a generally repetitive pattern comprising at least four sets of radially outwardly alternating, annular regions of high and low vision correction powers, said regions of high and low optical powers being interconnected by optical transition regions, each of said optical transition regions having a range of intermediate vision correction powers which varies smoothly between the interconnected high and low optical powers.
Claim 24
Dependent Claim
92 words
A multifocal ophthalmic lens for providing variable vision correction power, said lens having first and second zones with the second zone lying radially outwardly of the first zone, each of said zones having a first region with near vision correction power, a second region with far vision correction power and an intermediate vision region between the first and second regions, the intermediate vision region including progressive intermediate vision correction powers which are intermediate the near vision correction power and the far vision correction power and which provide vision correction for intermediate distances.
Claim 25
Dependent Claim
92 words
A multifocal ophthalmic lens for providing variable vision correction power, said lens having first and second zones with the second zone lying radially outwardly of the first zone, each of said zones having a first region with near vision correction power, a second region with far vision correction power and an intermediate vision region between the first and second regions, the intermediate vision region including progressive intermediate vision correction powers which are intermediate the near vision correction power and the far vision correction power and which provide vision correction for intermediate distances.
Claim 26
Dependent Claim
15 words
A lens as defined in claim 19 wherein the second zone surrounds the first zone.
Claim 27
Dependent Claim
15 words
A lens as defined in claim 19 wherein the first and second zones are concentric.
Claim 28
Dependent Claim
17 words
A lens as defined in claim 19 wherein each of said first and second zones is annular.
Claim 29
Dependent Claim
15 words
A lens as defined in claim 22 wherein the first and second zones are concentric.
Claim 30
Dependent Claim
17 words
A lens as defined in claim 23 including a central zone having an intermediate vision correction power.
Claim 31
Dependent Claim
15 words
A lens as defined in claim 19 wherein the ophthalmic lens is an intraocular lens.
Claim 32
Dependent Claim
18 words
A lens as defined in claim 19 wherein the ophthalmic lens is adapted for affixation to the cornea.
Claim 33
Dependent Claim
15 words
A lens as defined in claim 19 wherein the ophthalmic lens is a contact lens.
Claim 34
Dependent Claim
24 words
A lens as defined in claim 19 wherein the vision correction power varies progressively in transition from said first zone to said second zone.
Claim 35
Dependent Claim
26 words
A lens as defined in claim 19 wherein the vision correction power varies progressively in a radial direction throughout each of said first and second zones.
Claim 36
Dependent Claim
24 words
A lens as defined in claim 29 wherein the vision correction power varies progressively in transition from said first zone to said second zone.
Claim 37
Dependent Claim
41 words
A lens as defined in claim 19 wherein the far vision correction values of each of said first and second zones are the same and the near vision correction values of each of said first and second zones are the same.
Claim 38
Dependent Claim
82 words
An ophthalmic lens adapted to be carried by or in the eye for providing variable vision correction power, the corrective power being caused to vary progressively in a radial direction in an annular zone from a first vision correction value through an intermediate vision correction value to a second vision correction value and then back through the intermediate vision correction value to the first vision correction value and the intermeidate vision correction value being between the first and second vision correction value.
Claim 39
Dependent Claim
82 words
An ophthalmic lens adapted to be carried by or in the eye for providing variable vision correction power, the corrective power being caused to vary progressively in a radial direction in an annular zone from a first vision correction value through an intermediate vision correction value to a second vision correction value and then back through the intermediate vision correction value to the first vision correction value and the intermeidate vision correction value being between the first and second vision correction value.
Claim 40
Dependent Claim
23 words
A lens as defined in claim 32 wherein the first and second vision correction values are near and far vision correction values, respectively.
Claim 41
Dependent Claim
23 words
A lens as defined in claim 32 wherein the first and second vision correction values are far and near vision correction values, respectively.
Claim 42
Dependent Claim
76 words
An ophthalmic lens adapted to be carried by or in the eye for providing variable vision correction power, the corrective power being caused to vary progressively in a radial direction in an annular zone from an intermediate vision correction power through a far vision correction power and a near vision correction power and then back to the intermediate vision correction power and the intermediate vision correction power being between the first and second vision correction powers.
Claim 43
Dependent Claim
76 words
An ophthalmic lens adapted to be carried by or in the eye for providing variable vision correction power, the corrective power being caused to vary progressively in a radial direction in an annular zone from an intermediate vision correction power through a far vision correction power and a near vision correction power and then back to the intermediate vision correction power and the intermediate vision correction power being between the first and second vision correction powers.
Claim 44
Dependent Claim
70 words
A multifocal ophthalmic lens for providing variable vision correction power and adapted to be carried by the eye, said lens having a plurality of zones, the vision correction power of each of said zones varying progressively between a near vision correction value and a far vision correction value and then back toward an intermediate vision correction value, the intermediate vision correction value being between the near and far correction values.
Claim 45
Dependent Claim
70 words
A multifocal ophthalmic lens for providing variable vision correction power and adapted to be carried by the eye, said lens having a plurality of zones, the vision correction power of each of said zones varying progressively between a near vision correction value and a far vision correction value and then back toward an intermediate vision correction value, the intermediate vision correction value being between the near and far correction values.
Claim 46
Dependent Claim
22 words
A lens as defined in claim 36 wherein said zones are concentric and the corrective power varies progressively in a radial direction.
Claim 47
Dependent Claim
16 words
A lens as defined in claim 36 wherein at least some of said zones are annular.
Claim 48
Dependent Claim
17 words
A lens as defined in claim 38 including a central zone having an intermediate vision correction value.
Claim 49
Dependent Claim
31 words
A lens as defined in claim 36 wherein the far vision correction values of said zones are the same and the near vision correction values of said zones are the same.
Claim 50
Dependent Claim
23 words
A lens as defined in claim 36 wherein the vision correction power varies progressively in transition from one of said zones to another.
Claim 51
Dependent Claim
21 words
A lens as defined in claim 36 wherein the vision correction power varies progressively in a radial direction throughout said zones.
Claim 52
Dependent Claim
23 words
A lens as defined in claim 42 wherein the vision correction power varies progressively in transition from one of said zones to another.
Claim 53
Dependent Claim
63 words
An ophthalmic lens for providing variable vision correction power, said lens having a plurality of annular zones, the correction power of each of said zones varying progressively in a radial direction between a near vision correction power and a far vision correction power, and the correction power varying throughout each of said annular zones and in transition between each of said annular zones.
Claim 54
Dependent Claim
63 words
An ophthalmic lens for providing variable vision correction power, said lens having a plurality of annular zones, the correction power of each of said zones varying progressively in a radial direction between a near vision correction power and a far vision correction power, and the correction power varying throughout each of said annular zones and in transition between each of said annular zones.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |