Abstract: An apparatus and method for improving physical coordination and ability to react to moving and stationary objects is disclosed herein. A pair of voltage controlled liquid crystal lenses (14, 16) are mounted in a support frame (12) which is worn by a user in the same manner as conventional eyeglasses. The lenses (14, 16) can be electronically pulsed between an opaque state and a transparent state. Further, the lenses (14, 16) scatter background light in their opaque state rather than block the light so as to provide a generally constant level of contrast and brightness. This prevents pupil dilation changes when switching between the transparent state and the opaque state. Each lens can be made to pulse from an opaque state to a transparent state and then back again, and can be controlled independently or in synchronization. In operation, the user adjusts the control unit (18) to pulse the lenses (14, 16) at a high speed. An object is then viewed through the lenses and an appropriate response is made.