THE CENTER OF OCULAR ROTATION IN THE HORIZONTAL PLANE

Abstract

An extremely rigid and accurate instrument was constructed to hold the subject''s head in an immovable position with respect to a viewing tube which could be rotated in a horizontal plane. The motion of the eye along the line of sight was measured photographically. As the eye rotated the center of rotation moved along a curve on the nasalward side of the visual axis and a variable distance from the corneal vertex.