A 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 ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device; characterised in that the variable focus ophthalmic device further comprises: a first fluid with a first index of refraction; a second fluid with a second index of refraction, wherein the first index of refraction and the second index of refraction are different; the first fluid and the second fluid are immiscible; and a first reservoir region operable to change its volume for containment of a volume less than or equal to the volume of said first fluid, wherein at least a portion of the first reservoir is formed by a generally deformable material that varies its shape under the influence of an electric field, wherein at least a portion of said deformable material comprises an electroactive polymer material, and wherein the first reservoir is in fluid connection with said formed cavity; a second reservoir region in fluid connection with said formed cavity; wherein the fluid connection between the reservoirs and the formed cavity is via one or more channels that allow for the exchange of the first fluid and the second fluid; wherein varying the shape of said deformable material causes a change in the volume of the first reservoir region; wherein the change in volume causes the second fluid to flow into the cavity and in doing so force the first fluid out of the cavity and into the second reservoir region. 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 ophthalmic device and the back curve top optical surface of the back curve portion of the variable focus ophthalmic device; characterised in that the variable focus ophthalmic device further comprises: a first fluid with a first index of refraction; a second fluid with a second index of refraction, wherein the first index of refraction and the second index of refraction are different; the first fluid and the second fluid are immiscible; and a first reservoir region operable to change its volume for containment of a volume less than or equal to the volume of said first fluid, wherein at least a portion of the first reservoir is formed by a generally deformable material that varies its shape under the influence of an electric field, wherein at least a portion of said deformable material comprises an electroactive polymer material, and wherein the first reservoir is in fluid connection with said formed cavity; a first fluid with a first index of refraction; a second fluid with a second index of refraction, wherein the first index of refraction and the second index of refraction are different; the first fluid and the second fluid are immiscible; and a first reservoir region operable to change its volume for containment of a volume less than or equal to the volume of said first fluid, wherein at least a portion of the first reservoir is formed by a generally deformable material that varies its shape under the influence of an electric field, wherein at least a portion of said deformable material comprises an electroactive polymer material, and wherein the first reservoir is in fluid connection with said formed cavity; a second reservoir region in fluid connection with said formed cavity; wherein the fluid connection between the reservoirs and the formed cavity is via one or more channels that allow for the exchange of the first fluid and the second fluid; wherein varying the shape of said deformable material causes a change in the volume of the first reservoir region; wherein the change in volume causes the second fluid to flow into the cavity and in doing so force the first fluid out of the cavity and into the second reservoir region.