A contact lens or an intraocular lens with a variable focus ophthalmic device which is capable of changing the optical effect of the lens in discrete manners, the variable focus ophthalmic device comprising: a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface; a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface; a cavity formed by the front curve bottom optical surface of the front curve optical portion of the variable focus ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device; a first fluid with a first index of refraction and a second fluid with a second index of refraction, wherein the first index of refraction and the second index of refraction are different and the two fluids are immiscible; a dielectric film in contact with at least a portion of one or more of the first or second fluids and overlying an electrode capable of establishing an electric field; and one or more reservoir regions (710, 770) for containment of a volume of fluid equal or approximately equal to the volume of the first fluid, wherein the volume of the reservoir (710, 770) and the volume of the formed cavity is generally equal, wherein the reservoir (710, 770) is in fluid connection with said formed cavity, wherein a surface of the reservoir region (710, 770) is treated to favor adherence of one of the first or second fluids, and wherein the electrode and dielectric film of the variable focus ophthalmic device are located on at least a portion of one but not both of the surfaces forming the cavity and the reservoir (710, 770). a front curve optical portion of the variable focus ophthalmic device comprising a front curve top optical surface and a front curve bottom optical surface; a back curve optical portion of the variable focus ophthalmic device comprising a back curve top optical surface and a back curve bottom optical surface; a cavity formed by the front curve bottom optical surface of the front curve optical portion of the variable focus ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device; a first fluid with a first index of refraction and a second fluid with a second index of refraction, wherein the first index of refraction and the second index of refraction are different and the two fluids are immiscible; a dielectric film in contact with at least a portion of one or more of the first or second fluids and overlying an electrode capable of establishing an electric field; and one or more reservoir regions (710, 770) for containment of a volume of fluid equal or approximately equal to the volume of the first fluid, wherein the volume of the reservoir (710, 770) and the volume of the formed cavity is generally equal, wherein the reservoir (710, 770) is in fluid connection with said formed cavity, wherein a surface of the reservoir region (710, 770) is treated to favor adherence of one of the first or second fluids, and wherein the electrode and dielectric film of the variable focus ophthalmic device are located on at least a portion of one but not both of the surfaces forming the cavity and the reservoir (710, 770).