# US 9,039,172 B2 · Presbyopic treatment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,039,172 B2 - Document ID: US9039172B2 - Status: Granted - Kind: B2 - Application number: 14/167,648 - Filed: 2014-01-29 - Published: 2014-05-29 - Granted: 2015-05-26 - Earliest claimed: 2007-08-22 - Assignees: Novartis AG - Applicants: Novartis AG - Inventors: Joseph Michael Lindacher; Shyamant Ramana Sastry - Web page: https://patentgrep.com/patent/US9039172B2 ## CPC - G02C 7/044: {Annular configuration, e.g. pupil tuned} - G02C 7/024: {Methods of designing ophthalmic lenses} - G02C 7/027: {considering wearer's parameters} - G02C 7/028: {Special mathematical design techniques} - G02C 7/041: {bifocal; multifocal} - G02C 7/042: {Simultaneous type} - G02C 7/047: {Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae} - G02C 7/061: {Spectacle lenses with progressively varying focal power} - G02C 7/066: {Shape, location or size of the viewing zones} - G02C 2202/08: Series of lenses, lens blanks - 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 A method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus. ## Claims ### Claim 1 A lens for treating Presbyopia comprising: a central optical zone having a power profile that provides an ADD power ranging from a maximum ADD power of between about 0 diopters and about 2.4 diopters and a minimum ADD power of between about 0 diopters and about 0.2 diopters; and wherein the rate of power change over the central optical zone is a smoothly varying function; a peripheral optical zone having a power profile that provides an amount of negative spherical aberration between an inner semi-diameter of about 2 millimeters (mm) and an outer semi-diameter of about 3 mm, wherein the difference between the amount of negative spherical aberration provided at the inner semi-diameter of the peripheral optical zone and the amount of negative spherical aberration provided at the outer semi-diameter of the peripheral optical zone ranges from a minimum absolute value of about 0.65 diopters and a maximum absolute value of about 1.25 diopters; a transition zone interposed between and connected to the central optical zone and the peripheral optical zone, the transition zone providing a transition between the central optical zone and the peripheral optical zone, the transition zone having a power profile that is continuous. ### Claim 2 (depends on 1) The lens of claim 1, wherein said difference between the amount of negative spherical aberration provided at the inner semi-diameter and the amount of negative spherical aberration provided at the outer semi-diameter has an absolute value of about 0.85 diopters. ### Claim 3 (depends on 1) The lens of claim 1, wherein the power profile of the central optical zone is continuous. ### Claim 4 (depends on 3) The lens of claim 3, wherein the power profile of the peripheral optical zone is continuous. ### Claim 5 (depends on 1) The lens of claim 1, wherein the maximum ADD power provided by the power profile of the central optical zone is about 1.6 diopters. ### Claim 6 (depends on 1) The lens of claim 1, wherein the maximum ADD power provided by the power profile of the central optical zone is about 0.9 diopters. ### Claim 7 (depends on 1) The lens of claim 1, wherein the maximum ADD power provided by the power profile of the central optical zone is about 0.3 diopters. ### Claim 8 (depends on 1) The lens of claim 1, wherein a rate of power change in the central optical zone is discontinuous at the interconnection of the central optical zone and the transition zone. ### Claim 9 (depends on 1) The lens of claim 1, wherein a rate of power change in the peripheral optical zone is continuous. ### Claim 10 (depends on 9) The lens of claim 9, wherein a rate of power change in the central optical zone is substantially constant. ### Claim 11 (depends on 1) The lens of claim 1, wherein the lens is a toric multifocal lens. ### Claim 12 A lens series comprising lenses for treating Presbyopia, each lens of the series comprising: a central optical zone having a power profile that provides a selected amount of ADD power; a peripheral optical zone having a power profile that provides a selected amount of negative spherical aberration; the central optical zone having a power profile that provides an ADD power ranging from a maximum ADD power of between about 0 diopters and about 2.4 diopters and a minimum ADD power of between about 0 diopters and about 0.2 diopters; peripheral optical zone having a power profile that provides an amount of negative spherical aberration between an inner semi-diameter of about 2 millimeters (mm) and an outer semi-diameter of about 3 mm, wherein the difference between the amount of negative spherical aberration provided at the inner semi-diameter of the peripheral optical zone and the amount of negative spherical aberration provided at the outer semi-diameter of the peripheral optical zone ranges from a minimum absolute value of about 0.65 diopters and a maximum absolute value of about 1.25 diopters; and a transition zone interposed between and connected to the central optical zone and the peripheral optical zone, the transition zone providing a transition between the central optical zone and the peripheral optical zone; and wherein each lens of the series has a power profile that is defined by a mathematical function, each of the mathematical functions being identical except that the dc bias terms for each lens of the series are different. ### Claim 13 (depends on 12) The lens series of claim 12, wherein the power profile has a rate of power change in the central optical zone that is discontinuous at the interconnection of the central optical zone and the transition zone. ### Claim 14 (depends on 12) The lens series of claim 12, wherein the power profile has a rate of power change in the peripheral optical zone that is continuous between a semi-diameter of about 2 millimeters (mm) from a center of the lens and a semi-diameter of about 3 mm from the center of the lens. ### Claim 15 (depends on 12) The lens series of claim 12, wherein the power profile has a rate of power change in the peripheral optical zone that has an absolute value that ranges from about 0.50 diopters/mm to about 1.00 diopters/mm at a distance of about 2.0 millimeters (mm) from a center of the lens and has an absolute value that ranges from about 0.75 diopters/mm to about 1.50 diopters/mm at a distance of about 3.0 mm from the center of the lens. ### Claim 16 (depends on 15) The lens series of claim 15, wherein the power profile has a rate of power change in the peripheral optical zone that has an absolute value of about 0.65 diopters/mm at a distance of about 2.0 mm from the center of the lens and that has an absolute value of about 1.00 diopters/mm at a distance of about 3.0 mm from the center of the lens. ### Claim 17 (depends on 12) The lens series of claim 12, wherein the power profile has a rate of power change in the central optical zone that has an absolute value that ranges from about 0.15 diopters/mm to about 0.8 diopters/mm at a distance of about 0.5 millimeters (mm) from a center of the lens and has an absolute value that ranges from about 0.3 diopters/mm to about 2.0 diopters/mm at a distance of about 1.0 mm from the center of the lens. ### Claim 18 (depends on 12) The lens series of claim 12, wherein the transition zone has a power profile that is continuous. ### Claim 19 A method for providing a lens series for treating Presbyopia comprising: selecting a power profile for a lens series that provides ADD power in the central optical zone and negative spherical aberration in the peripheral optical zone; the central optical zone having a power profile that provides an ADD power ranging from a maximum ADD power of between about 0 diopters and about 2.4 diopters and a minimum ADD power of between about 0 diopters and about 0.2 diopters; the peripheral optical zone having an inner semi-diameter of about 2 millimeters (mm) and an outer semi-diameter of about 3 mm, the peripheral optical zone having a power profile that provides an amount of negative spherical aberration, an absolute value of a difference between the amount of negative spherical aberration provided by the power profile at the inner semi-diameter and the amount of negative spherical aberration provided by the power profile at the outer semi-diameter ranging from about 0.65 diopters to about 1.25 diopters; and for each lens of the lens series, provide the selected power profile with a different dc bias term such that all lenses have the same power profile except that the dc bias term of the profile is different for each lens of the series. ### Claim 20 (depends on 19) The method of claim 19, further comprising: fitting a first eye of the wearer with a first lens of the series; and fitting the second eye of the wearer with a second lens of the series.