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Sphygmomanometer. A sphygmomanometer ( / ˌsfɪɡmoʊməˈnɒmɪtər / SFIG-moh-mə-NO-mi-tər ), also known as a blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, [ 1] and a mercury or aneroid ...
That’s because you can get a corneal ulcer, which is an infection on part of the eye that a contact covers. “It’s not going to happen every time, but when it happens, it’s terrible ...
Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen ( O. 2) at increased partial pressures. Severe cases can result in cell damage and death, with effects most often seen in the central nervous system, lungs, and eyes. Historically, the central nervous system condition was called the Paul Bert effect ...
Blood pressure measurement. A medical student checking blood pressure using a sphygmomanometer and stethoscope. Arterial blood pressure is most commonly measured via a sphygmomanometer, which historically used the height of a column of mercury to reflect the circulating pressure. [ 1] Blood pressure values are generally reported in millimetres ...
A manual one requires someone trained to take blood pressure by squeezing a bulb and controlling the pressure of the arm cuff. An automatic monitor will inflate the cuff on its own and display the ...
Posterior ischemic optic neuropathy ( PION) is a medical condition characterized by damage to the retrobulbar portion of the optic nerve due to inadequate blood flow (ischemia) to the optic nerve. Despite the term posterior, this form of damage to the eye's optic nerve due to poor blood flow also includes cases where the cause of inadequate ...
Intraocular pressure ( IOP) is the fluid pressure inside the eye. Tonometry is the method eye care professionals use to determine this. IOP is an important aspect in the evaluation of patients at risk of glaucoma. [ 1] Most tonometers are calibrated to measure pressure in millimeters of mercury ( mmHg ).
Strongly modulated blood flow pulse in central and branch arteries can result from hypertension. Microangiography by laser Doppler imaging [ 3 ] may reveal altered hemodynamics non-invasively. Mild signs of hypertensive retinopathy can be seen quite frequently in normal people (3–14% of adult individuals aged ≥40 years), even without ...