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Ultrasonic M-Mode Technique in Ophthalmology
D. Jackson Coleman, MD;
Richard Weininger, BS
Arch Ophthalmol. 1969;82(4):475-479.
Abstract
The use of the M-mode or time-dependent intensity modulated ultrasound technique for ophthalmologic investigations is described. This technique provides the investigator with a means for monitoring structural changes in the eye during physiologic or pharmacologic experimental conditions, or a combination of both, and is particularly useful in studying optically inaccessible structures.
The technique has been used to study accommodation changes in axial length and lens thickness as well as the rate of such changes and to study vascular pulsations and choroidal thickness changes at the rear wall of the eye.
Author Affiliations
New York
From the Institute of Ophthalmology, Columbia Presbyterian Medical Center and Columbia University College of Physicians and Surgeons, New York.
Footnotes
Submitted for publication April 14, 1969.
Reprint requests to Department of Ophthalmology, 635 W 165th St, New York 10032 (Dr. Coleman).
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