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PubMed · 6824470

Instantaneous tonometry.

R A Moses·R J Arnzen
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Abstract

Respiration and arterial pulse cause intraocular pressure to cyclically vary around a mean pressure. Both the respiratory and arterial pulse waves approximate sine waves, and we have represented the IOP cycle as the sum of sinusoidal pressure waves. A rapidly acting tonometer may record any portion of the IOP cycle. We have computed the probability that a single pressure measurement will lie within a given interval around mean IOP and the probability that the mean of several such measurements will lie within a given range of mean pressure. The probability that an IOP estimate will lie in a given range of mean IOP decreases as the IOP cycle amplitude increases but increases as the number of tonometric measurements averaged together increases.

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HumansMathematicsProbabilityPulseRespirationTonometry, OcularJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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R A Moses, R J Arnzen. 1983. Instantaneous tonometry.. https://doi.org/10.1001/archopht.1983.01040010251014

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