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scleral indentation |
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indentation, scleral A clinical procedure used in conjunction with indirect ophthalmoscopy in which some slight pressure is applied to the sclera to bring the peripheral retina into view. Retinal detachments and tears, for example, are more easily seen with this procedure. Pressure is usually applied with an instrument called an indentor. The technique is contraindicated in patients with elevated intraocular pressure. See indirect ophthalmoscope. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A durometer works by measuring the penetration of the gauge indentor under specific conditions. In addition to an optical microscope, the system has an atomic force microscope (ATM) equipped with a specially designed probe to measure particle shapes, and a diamond compression indentor whose tip is flattened using a focused ion beam (FIB) process to the extent that the tip is 1 micron in diameter, narrow enough to compress just a single particle at a time. All preset parameters can be set up in test files, and the complete range of test loads and indentor sizes also can be added. |
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