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A Noncontact Applanation Tonometer: Description and Clinical Evaluation

A Noncontact Applanation Tonometer: Description and Clinical Evaluation Abstract A new applanation tonometer (NCT) measures intraocular pressure without touching the eye. A central area of the cornea is deformed by an air-pulse of linearly increasing force and the instant of applanation is determined by a monitoring system that senses light reflected from the corneal surface. Clinical evaluation has demonstrated good correlation between NCT and Goldmann tonometer readings, thereby validating this new method of tonometry. References 1. Imbert A: Théorie des ophthalmotonomètres . Arch Ophthalmol 5:358-363, 1885. 2. Fick R: Ein neues Ophthalmotonometer . Pflügers Arch Ges Physiol 42:159-190, 1888. 3. Weber A: Neues Tonometer . Albrecht von Graefes Arch Ophthalmol 13:203-209, 1867.Crossref 4. Maklakoff C: L'ophthalmotonometrie . Arch Ophthalmol 5:159-165, 1885. 5. Goldmann H: Applanation tonometry , in Newell FW (ed): Glaucoma: Transactions of the Second Conference, December 3, 4, and 5, 1956, Princeton, NJ . Madison, NJ, Madison Printing Co Inc, 1957, pp 167-220. 6. Thygeson P: Office and dispensary transmission of epidemic keratoconjunctivitis . Am J Ophthalmol 43:( (Pt 2) ):98-101, 1957. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

A Noncontact Applanation Tonometer: Description and Clinical Evaluation

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References (6)

Publisher
American Medical Association
Copyright
Copyright © 1974 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1974.03900060140012
Publisher site
See Article on Publisher Site

Abstract

Abstract A new applanation tonometer (NCT) measures intraocular pressure without touching the eye. A central area of the cornea is deformed by an air-pulse of linearly increasing force and the instant of applanation is determined by a monitoring system that senses light reflected from the corneal surface. Clinical evaluation has demonstrated good correlation between NCT and Goldmann tonometer readings, thereby validating this new method of tonometry. References 1. Imbert A: Théorie des ophthalmotonomètres . Arch Ophthalmol 5:358-363, 1885. 2. Fick R: Ein neues Ophthalmotonometer . Pflügers Arch Ges Physiol 42:159-190, 1888. 3. Weber A: Neues Tonometer . Albrecht von Graefes Arch Ophthalmol 13:203-209, 1867.Crossref 4. Maklakoff C: L'ophthalmotonometrie . Arch Ophthalmol 5:159-165, 1885. 5. Goldmann H: Applanation tonometry , in Newell FW (ed): Glaucoma: Transactions of the Second Conference, December 3, 4, and 5, 1956, Princeton, NJ . Madison, NJ, Madison Printing Co Inc, 1957, pp 167-220. 6. Thygeson P: Office and dispensary transmission of epidemic keratoconjunctivitis . Am J Ophthalmol 43:( (Pt 2) ):98-101, 1957.

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Feb 1, 1974

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