A method and apparatus for determining intracranial pressure, the apparatus comprising: a contact lens (22) a camera (32) for making a plurality of images of at least one eye of a subject one or more force transducers (24) for controllably applying a force to the eye via the contact lens (22) a support system (26a, 26b, 28a, 28b) for supporting the camera (32), the contact lens and the one or more force transducers (24) against the eye and a computing device (14) for controlling the force applied to the eye by the force transducers (24) and stabilizing the force by negative feedback.
