# US 11,029,538 B2 · Contact lenses having an ion-impermeable portion and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,538 B2 - Document ID: US11029538B2 - Status: Granted - Kind: B2 - Application number: 16/164,847 - Filed: 2018-10-19 - Published: 2019-04-25 - Granted: 2021-06-08 - Earliest claimed: 2017-10-25 - Assignees: CooperVision International Limited - Applicants: CooperVision International Limited - Inventors: Cheng-Chun Peng; Percy Lazon de la Jara - Web page: https://patentgrep.com/patent/US11029538B2 ## CPC - G02C 7/049: {Contact lenses having special fitting or structural features achieved by special materials or material structures} - B29D 11/00048: {composed of parts with dissimilar composition (B29D11/00057 takes precedence)} - B29D 11/00817: {Producing electro-active lenses or lenses with energy receptors, e.g. batteries or antennas} - G02C 7/083: {Electrooptic lenses} - G02C 7/085: {Fluid-filled lenses, e.g. electro-wetting lenses} - G02C 11/10: {Electronic devices other than hearing aids} - 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) - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) ## Abstract Contact lenses that have an ion-impermeable portion and an ion-permeable portion that are able to move on the eye without binding to the eye are described. The contact lenses exhibit an average ionoflux transmittance of at least 1.34×10−4 mm/min. One or more electronic components can be included in the contact lenses. Methods of making the contact lenses are also described. ## Claims ### Claim 1 A contact lens, comprising: a lens body that comprises an ion-impermeable portion, and an ion-permeable portion, the lens body having an average ionoflux transmittance of at least 1.34×10−4 mm/min and wherein the lens body comprises an optic zone that comprises an electronically adjustable optic. ### Claim 2 (depends on 1) The contact lens of claim 1, wherein the lens body further comprises an anterior surface, a posterior surface shaped for placement on a cornea of an eye, a lens edge circumscribing the lens body, and the ion-permeable portion is present at a region of the lens body extending at least 1.1 mm from the lens edge towards the geometric center of the lens body. ### Claim 3 (depends on 1) The contact lens of claim 1, wherein the lens body has an average thickness and an ionoflux diffusion coefficient, wherein the average thickness is at least 50 micrometers and the ionoflux diffusion coefficient is at least 6.7×10−6 mm2/min. ### Claim 4 (depends on 1) The contact lens of claim 1, wherein the lens body has an average ionoflux transmittance from about 1.34×10−4 mm/min to about 1.50×10−1 mm/min. ### Claim 5 (depends on 2) The contact lens of claim 2, wherein the ion-permeable portion defines an annulus having a radially outer edge defined by the lens edge of the lens body. ### Claim 6 (depends on 1) The contact lens of claim 1, wherein the ion-impermeable portion constitutes less than 75% of the area of the lens body when viewed in plan view. ### Claim 7 (depends on 1) The contact lens of claim 1, wherein the ion-impermeable portion comprises at least one additional electronic component. ### Claim 8 (depends on 7) The contact lens of claim 7, wherein the at least one additional electronic component comprises at least one electrode, at least one power supply, at least one sensor, or at least one transmitter, or combinations thereof. ### Claim 9 (depends on 1) The contact lens of claim 1, wherein the electronically adjustable optic comprises a liquid crystal component, or a fluid filled membrane component. ### Claim 10 (depends on 1) The contact lens of claim 1, wherein the lens body comprises a hydrogel component, a silicone hydrogel component, or a silicone elastomer component, or combinations thereof. ### Claim 11 (depends on 1) The contact lens of claim 1, wherein the ion-impermeable portion has a substantially circular shape when viewed in plan view, and the ion-impermeable portion has a diameter no greater than 12 mm. ### Claim 12 A contact lens, comprising: a lens body that comprises an ion-impermeable portion, and an ion-permeable portion, wherein the ion-impermeable portion comprises an electronically adjustable optic that provides a first refractive power without energy, and adjusts to a different second refractive power upon receiving energy, and at least one additional electronic component to provide the energy to the electronically adjustable optic, and wherein the ion-permeable portion comprises a hydrogel polymeric material or a silicone hydrogel polymeric material, and the ion-permeable portion is present as an annulus extending radially inwardly from a lens edge circumscribing the lens body by a distance that is at least 7% of a chord diameter of the lens body. ### Claim 13 (depends on 12) The contact lens of claim 12, wherein the electronically adjustable optic comprises a liquid crystal component, or a fluid filled membrane component. ### Claim 14 (depends on 12) The contact lens of claim 12, wherein the annulus of the ion-permeable portion has a radial width of at least 1.1 mm from the lens edge. ### Claim 15 (depends on 12) The contact lens of claim 12, wherein the lens body has an average ionoflux transmittance of at least 1.34×10−4 mm/min. ### Claim 16 (depends on 12) The contact lens of claim 12, wherein the ion-impermeable portion further comprises a silicone elastomer material. ### Claim 17 A contact lens, comprising: a lens body that comprises an ion-impermeable portion, and an ion-permeable portion, the lens body having an average thickness of at least 200 micrometers, and an ionoflux diffusion coefficient of at least 2.68×10−5 mm2/min. ### Claim 18 (depends on 17) The contact lens of claim 17, wherein the lens body exhibits an on-eye movement rate from 0.1 mm/second to 4.0 mm/second. ### Claim 19 (depends on 17) The contact lens of claim 17, wherein the lens body has an average ionoflux transmittance of at least 1.34×10−4 mm/min. ### Claim 20 (depends on 17) The contact lens of claim 17, wherein the lens body further comprises an anterior surface, a posterior surface shaped for placement on a cornea of an eye, a lens edge circumscribing the lens body, and the ion-permeable portion is present at a region of the lens body extending at least 1.1 mm from the lens edge towards the geometric center of the lens body. ### Claim 21 (depends on 17) The contact lens of claim 17, wherein the ion-impermeable portion constitutes no more than 70% of the area of the lens body when viewed in plan view. ### Claim 22 (depends on 17) The contact lens of claim 17, wherein the ion-impermeable portion comprises at least one electronic component. ### Claim 23 (depends on 22) The contact lens of claim 22, wherein the at least one electronic component comprises at least one electrode, at least one power supply, at least one sensor, or at least one transmitter, or combinations thereof. ### Claim 24 (depends on 17) The contact lens of claim 17, wherein the lens body comprises an optic zone that comprises an electronically adjustable optic. ### Claim 25 (depends on 24) The contact lens of claim 24, wherein the electronically adjustable optic comprises a liquid crystal component, or a fluid filled membrane component. ### Claim 26 (depends on 17) The contact lens of claim 17, wherein the lens body comprises a hydrogel component, a silicone hydrogel component, or a silicone elastomer component, or combinations thereof.