Quantitative Assessment of the Impact of Blood Pulsation on Intraocular Pressure Measurement Results in Healthy Subjects
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-01-30
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Background.
Blood pulsation affects the results obtained using various medical devices in many different ways.
Method.
The paper proves the effect of blood pulsation on intraocular pressure measurements.
Six measurements for each of the 10 healthy subjects were performed in various phases of blood pulsation.
A total of 8400 corneal deformation images were recorded.
The results of intraocular pressure measurements were related to the results of heartbeat phases measured with a pulse oximeter placed on the index finger of the subject’s left hand.
Results.
The correlation between the heartbeat phase measured with a pulse oximeter and intraocular pressure is 0.69±0.26 (p<0.05).
The phase shift calculated for the maximum correlation is equal to 60±40° (p<0.05).
When the moment of measuring intraocular pressure with an air-puff tonometer is not synchronized, the changes in IOP for the analysed group of subjects can vary in the range of ±2.31 mmHg (p<0.3).
Conclusions.
Blood pulsation has a statistically significant effect on the results of intraocular pressure measurement.
For this reason, in modern ophthalmic devices, the measurement should be synchronized with the heartbeat phases.
The paper proposes an additional method for synchronizing the time of pressure measurement with the blood pulsation phase.
American Psychological Association (APA)
Koprowski, Robert& Tian, Lei. 2017. Quantitative Assessment of the Impact of Blood Pulsation on Intraocular Pressure Measurement Results in Healthy Subjects. Journal of Ophthalmology،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1185690
Modern Language Association (MLA)
Koprowski, Robert& Tian, Lei. Quantitative Assessment of the Impact of Blood Pulsation on Intraocular Pressure Measurement Results in Healthy Subjects. Journal of Ophthalmology No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1185690
American Medical Association (AMA)
Koprowski, Robert& Tian, Lei. Quantitative Assessment of the Impact of Blood Pulsation on Intraocular Pressure Measurement Results in Healthy Subjects. Journal of Ophthalmology. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1185690
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185690