Adjustable eyeglasses that use liquid vision

    The new glasses will allow the user to change their refractive power, making it easier to provide corrective eyewear to people in developing nations.
    The inexpensive glasses will consist of a pair of fluid-filled lenses with flexible membranes. The wearer will use a small detachable pump to add or remove fluid from the lenses, adjusting their refraction to suit their need.