Noninvasive diagnosis of carotid occlusion by ocular pneumoplethysmography.


An ocular pneumoplethysmograph was devised to measure the systolic pressure in the ophthalmic artery and to obtain calibrated pulse volume changes from the ocular globe, with simultaneous recording from both eyes. The instrument is self-contained and portable. It can be applied by paramedical personnel, and the graphic recording is readily interpreted by… (More)

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