What is the term for the tonometry technique that displaces a minimal amount of fluid?

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The term for the tonometry technique that displaces a minimal amount of fluid is applanation. This method involves flattening a small area of the cornea to measure intraocular pressure. The technique is designed to minimize the amount of fluid that is displaced during the measurement process. By using a small probe to gently flatten the cornea, applanation tonometry allows for an accurate assessment of eye pressure while keeping the disturbance to the fluid in the eye to a minimum.

This is important for ensuring that the pressure readings reflect the true intraocular pressure, as excessive fluid displacement can lead to inaccurate measurements. Applanation tonometry is widely regarded for its precision and is often performed in clinical settings to monitor eye health, especially in relation to conditions like glaucoma.

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