An eye-mountable device, EMD, comprising: a lens enclosure including an anterior layer and a posterior layer 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 disposed within the lens enclosure on a concave side of the anterior layer; a posterior electrode disposed within the lens enclosure on a convex side of the posterior layer; and an accommodation actuator element 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 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 having an anterior contact pad , 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 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 including an anterior layer and a posterior layer 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 disposed within the lens enclosure on a concave side of the anterior layer; a posterior electrode disposed within the lens enclosure on a convex side of the posterior layer; and an accommodation actuator element 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 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 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. <EOS>