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Noninvasive intraocular pressure monitoring: current insights

Authors De Smedt S

Received 30 March 2015

Accepted for publication 26 May 2015

Published 30 July 2015 Volume 2015:9 Pages 1385—1392

DOI https://doi.org/10.2147/OPTH.S53772

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Scott Fraser


Stefan De Smedt

Department of Ophthalmology, AZ St Maarten, Mechelen, Belgium

Abstract: Glaucoma is the second leading cause of blindness worldwide and intraocular pressure (IOP) is currently its only modifiable risk factor. Peak IOP has for a long time been considered as a major contributor to glaucoma progression, but its effects may depend not only on its magnitude, but also on its time course. The IOP is nowadays considered to be a dynamic parameter with a circadian rhythm and spontaneous changes. The current practice of punctual measuring the IOP during office hours is therefore a suboptimal approach, which does not take into account the natural fluctuation of IOP. Because of its static nature a single IOP measurement in sitting position fails to document the true range of an individual’s IOP, peak IOP, or variation throughout the day. Phasing means monitoring a patient’s IOP during the daytime or over a 24-hour period. This can provide additional information in the management of glaucoma patients. This review focuses on the current insight of non-invasive IOP monitoring as a method of obtaining more complete IOP profiles. Invasive techniques using an implantable sensor are beyond the scope of this review.

Keywords: glaucoma, phasing, self-tonometry, contact lens sensor

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