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      Ultrasonic Measurements at the Posterior Wall of Living Human Eyes

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          An ultrasonic measurement system was constructed which rendered it possible to record and analyze four radio frequency (RF) oscillograms per second from the posterior walls of living human eyes. Unwanted interferences, such as noise, RF interference and possible movements of the posterior ocular wall in relation to the transducer have been reduced to neutral values and methods have been devised to evaluate the data. As a preliminary result of these studies, pulsations suggesting changes in choroidal thickness at the posterior pole in the range 10 μ<sub>pp</sub> could be evinced.

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          Author and article information

          Ophthalmic Res
          Ophthalmic Research
          S. Karger AG
          04 December 2009
          : 13
          : 1
          : 1-11
          Clinical Institute of Experimental Ophthalmology (Director: Prof. E. Weigelin), University of Bonn, Bonn
          265102 Ophthalmic Res 1981;13:1–11
          © 1981 S. Karger AG, Basel

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          Pages: 11
          Original Paper


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