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. 2016 Jan 12;10:71–77. doi: 10.2147/OPTH.S92954

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© 2016 Korenfeld and Dueker. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License

The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

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The OPE apparatus is shown.

Notes: The apparatus consisted of a bottle of fluid for calibration (not seen), a three-position stopcock, a pressure transducer (the black structure directly below the stopcock, bolted to the white surface), a linear amplifier circuit (the black box with the white top), a strip chart recorder, and a measurement line which was connected to the stopcock with polyethylene tubing. Two identical setups were constructed, except the experimental OPE line ended distally with a fluid-filled bladder (shown here) and the control line ended distally with a needle for intraocular cannulation.

Abbreviation: OPE, ocular pressure estimator.