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Can we trust intraocular pressure measurements in eyes with intracameral air?
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Radiation Physics.
Umeå University, Faculty of Medicine, Department of Clinical Sciences, Ophthalmology.
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2014 (English)In: Graefe's Archives for Clinical and Experimental Ophthalmology, ISSN 0721-832X, E-ISSN 1435-702X, Vol. 252, no 10, 1607-1610 p.Article in journal (Refereed) Published
Abstract [en]

PURPOSE: To evaluate the effect of intracameral air on intraocular pressure (IOP) measurements using Goldmann applanation tonometry (GAT) and applanation resonance tonometry (ART) in an in-vitro porcine eye model.

METHODS: IOP was measured on thirteen freshly enucleated eyes at three reference pressures: 20, 30, and 40 mmHg. Six measurements/method were performed in a standardized order with GAT and ART respectively. Air was injected intracamerally in the same manner as during Descemet's stripping endothelial keratoplasty (DSEK) and Descemet's membrane endothelial keratoplasty (DMEK), and the measurements were repeated.

RESULTS: Measured IOP increased significantly for both tonometry methods after air injection: 0.7 ± 2.1 mmHg for GAT and 10.6 ± 4.9 mmHg for ART. This difference was significant at each reference pressure for ART but not for GAT.

CONCLUSIONS: Although slightly affected, this study suggests that we can trust GAT IOP-measurements in eyes with intracameral air, such as after DSEK/DMEK operations. Ultrasound-based methods such as ART should not be used.

Place, publisher, year, edition, pages
Springer, 2014. Vol. 252, no 10, 1607-1610 p.
Keyword [en]
intraocular pressure; intracameral air; Goldmann applanation tonometry; applanation resonance tonometry; DSEK; DMEK
National Category
Ophthalmology
Identifiers
URN: urn:nbn:se:umu:diva-96875DOI: 10.1007/s00417-014-2720-5ISI: 000344631600012PubMedID: 25030238OAI: oai:DiVA.org:umu-96875DiVA: diva2:769003
Available from: 2014-12-05 Created: 2014-12-05 Last updated: 2017-12-05Bibliographically approved

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Jóhannesson, GautiLindén, ChristinaEklund, AndersBehndig, AndersHallberg, Per
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