The Relation of Systemic Blood Pressure to Intra-Ocular Pressure

(1) High intra-ocular pressure depends upon high capillary pressure, which in turn depends upon low blood pressure. (2) Hyperpietic diathesis will predispose to an acute glaucomatous crisis in the eye. (3) Glaucoma is associated with diseases of the arterial system. (4) Venous pressure in its variations is more closely connected with the intra-ocular pressure. (5) Independent activity of capillary circulation depends upon physical, chemical, hormonal and psychical influences, viz, emotional, temperamental, endocrine disturbances and sympathetic involvement. The cases, 68 in number quoted in the table, were all definitely glaucomatous. The blood pressure of the brachial artery was taken by means of the mercury sphygmomanometer by the auscultatory method, the patient being in the recumbent posture. The conclusions drawn from the data depend upon the arithmetic means of the various readings :? (1) In the normal individual the pressure as registered in the brachial artery is : systolic 110-125 mm. of mercury, diastolic 60-80 mm. of mercury. (2) Glaucomatous patients are usually of advanced age and we should ordinarily expect higher blood pressure than the above normal