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Health A-Z

Medical Content Created by the Faculty of the
Harvard Medical School

What is the test?

Tonometry is a test to measure pressure in your eyeball. High pressure inside the eye is caused by a disease called glaucoma, which can damage your vision if it is not treated.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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