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tonometer |
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tonometer [tō′näm·əd·ər] (medicine) An electronic instrument that measures hydrostatic pressure within the eye: when placed in position, a tiny movable plate is pressed against the eye, flattening a circular section of the cornea (no eyeball anesthesia is required); a current is then sent through a small electromagnet, of such value that it will just pull the plate away from the eye; the value of the current is proportional to eye pressure; a measurement can be made in about 1 second; used in diagnosis of glaucoma. Also known as electronic tonometer. 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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Medtronic Ophthalmics also produces the Tono-Pen(R)XL, the leading portable applanation tonometer for monitoring intraocular pressure and ENDOLaser, an endoscopic laser treatment designed to reduce the production of aqueous fluid. |
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