An eye-mountable device, EMD, (100, 200, 300) comprising: a lens enclosure (110, 210) including an anterior layer (305, 514, 620, 670, 705) and a posterior layer (310, 504, 610, 660, 710) sealed to the anterior layer, wherein a concave surface of the posterior layer is configured to be removeably mounted over a cornea; an anterior electrode (315, 532, 672a, 715) disposed within the lens enclosure on a concave side of the anterior layer; a posterior electrode (320, 522, 672b, 732) disposed within the lens enclosure on a convex side of the posterior layer; and an accommodation actuator element (130, 230, 325, 562, 615, 655) disposed across a central region of the lens enclosure; wherein the accommodation actuator element separates the anterior electrode from the posterior electrode within the central region; wherein a pinch-off region (232, 564, 625, 680, 720) defines a perimeter of the central region, wherein the pinch-off region is where a portion of the anterior layer physically contacts a portion of the posterior layer; and wherein the eye-mountable device further comprises: a substrate (115, 215, 330, 325, 635, 730) having an anterior contact pad (345, 745), the substrate being disposed between the anterior layer and the posterior layer in a peripheral region of the lens enclosure that extends around at least a part of the pinch-off region wherein integrated circuitry is disposed on the substrate; and wherein the anterior electrode includes an anterior main body portion and an anterior connection tab (360, 760) that extends from the anterior main body portion and through the pinch-off region to overlap the anterior contact pad on the substrate, and wherein: the pinch-off region separates the accommodation actuator in the central region from the integrated circuitry disposed on the substrate in the peripheral region; the central region of the lens enclosure has a thickness which tapers such that the thickness of the lens enclosure gradually decreases towards the pinch-off region; and the peripheral region of the lens enclosure has a thickness which tapers such that the thickness of the lens enclosure gradually decreases towards the pinch-off region. a lens enclosure (110, 210) including an anterior layer (305, 514, 620, 670, 705) and a posterior layer (310, 504, 610, 660, 710) sealed to the anterior layer, wherein a concave surface of the posterior layer is configured to be removeably mounted over a cornea; an anterior electrode (315, 532, 672a, 715) disposed within the lens enclosure on a concave side of the anterior layer; a posterior electrode (320, 522, 672b, 732) disposed within the lens enclosure on a convex side of the posterior layer; and an accommodation actuator element (130, 230, 325, 562, 615, 655) disposed across a central region of the lens enclosure; wherein the accommodation actuator element separates the anterior electrode from the posterior electrode within the central region; wherein a pinch-off region (232, 564, 625, 680, 720) defines a perimeter of the central region, wherein the pinch-off region is where a portion of the anterior layer wherein the accommodation actuator element separates the anterior electrode from the posterior electrode within the central region; wherein a pinch-off region (232, 564, 625, 680, 720) defines a perimeter of the central region, wherein the pinch-off region is where a portion of the anterior layer physically contacts a portion of the posterior layer; and the pinch-off region separates the accommodation actuator in the central region from the integrated circuitry disposed on the substrate in the peripheral region; the central region of the lens enclosure has a thickness which tapers such that the thickness of the lens enclosure gradually decreases towards the pinch-off region; and the peripheral region of the lens enclosure has a thickness which tapers such that the thickness of the lens enclosure gradually decreases towards the pinch-off region.