Ophthalmic devices with dynamic electro active elements offer variable optical power and/or depth of field that restore lost accommodation in individuals suffering from presbyopia or aphakia. An illustrative device senses physiological processes indicative of the accommodative response and actuates a dynamic electro active element to provide the desired change in optical power and/or depth of field. The illustrative device includes two application specific integrated circuits (ASICs) for processing the accommodative response and actuating the electro active element: a high voltage ASIC that steps up a low voltage from a power supply to a higher voltage suitable for actuating the electro active element and another ASIC that operates at low voltage (and therefore consumes little power) and controls the operating state of the high voltage ASIC. Because each ASIC operates at the lowest possible voltage the illustrative ophthalmic device dissipates less power than other ophthalmic devices.
