NOVELTY - The lens (10) has an actuator (28) transferring a fluid back and forth between a lens chamber (18) and a reservoir (20). A pressure sensor (34) senses movement from a user and transmits a control signal when a predetermined movement is performed by the user. A processor (40) actuates a piezo-electric actuator upon receipt of the control signal from the sensor. A capacitive power source supplies power to the actuator and the processor. A thermoelectric power generator (36) supplies power to the capacitive power source by harnessing power from temperature gradient over the lens.    USE - Fluid-filled adjustable contact lens for providing image magnification outside a physiological range of human vision.    ADVANTAGE - The lens can be adjusted continuously over a desired power range by a wearer so as to allow the wearer to adjust the power, thus matching a refractive error for object distance in a light environment, and hence compensating to alter natural depth of focus of the eye depending on the wearer's pupil size in an effective manner. The lens can provide an image magnification outside the physiological range of human vision. The lens allows smooth blending of an outside edge of the lens chamber within the lens corresponding to an optical zone so as to avoid image jump and perceivable image distortions in an effective manner. The lens provides adaptive correction and low cost, limits aperture size and leakage, and provides consistency in performance. The lens allows switching of the optical power of the lens from one state to another state so as to allow a user to switch from a near-field optical power and a far-field optical power in an easier manner.    DETAILED DESCRIPTION - The capacitive power source is an inductive power source. The fluid can be a colorless fluid, silicone oil or aliphatic polysiloxane. The processor is an application-specific integrated circuit (ASIC).    DESCRIPTION OF DRAWING(S) - The drawing shows a front view of a fluid filled adjustable contact lens.    Fluid filled adjustable contact lens (10)    Lens chamber (18)    Reservoir (20)    Actuator (28)    Pressure sensor (34)    Thermoelectric power generator (36)    Processor (40)    Microaccelerometer (42)