To provide an optical pointing device capable of providing the inertial effects of a track boll by using an optical pointing device.

An apparatus (1) for controlling the position of a screen pointer of an electronic device having a display screen is provided with an imaging surface (5) against which a top end part (6) of a human digit (7) may be placed, a light source (2) for illuminating the tip of the digit placed on the imaging surface, and for forming a reflected image, a motion transducer (9), a lens (8) for receiving the reflected image, and for directing this to the motion transducer, and a controller (40). The motion transducer generates the digital expression data of the reflected image, and generates the first movement data set indicating the movement of the tip of the digit across the imaging surface based on the digital expression data. When the tip of the human digit is removed from the imaging surface, the controller generates the second movement data set indicating the movement of the tip of the digit on the imaging surface before the tip of the digit is removed from the imaging surface.