MEASUREMENTS OF THE EPISCLERAL VENOUS PRESSURE BY MEANS OF AN AIR JET

Abstract

A method for determination of the venous pressure in the conjunctival and episcleral vessels is described. The external pressure needed for the vessels to collapse is achieved by means of a stream of air directed against the vessel. As the eye is untouched by the instrument, local anaesthetics usually are not needed. The method is fast and easy to perform. The measurements indicate that the pressure of the aqueous‐conveying episcleral veins often is 3–4 mmHg higher than that of the conjunctival veins.