Influence of Corneal Visualization Scheimpflug Technology Tonometry on Intraocular Pressure

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dc.contributor.authorBorroni, Davide
dc.contributor.authorGadhvi, Kunal Ajit
dc.contributor.authorHristova, Rozaliya
dc.contributor.authorMcLean, Keri
dc.contributor.authorRocha de Lossada, Carlos
dc.contributor.authorRomano, Vito
dc.contributor.authorKaye, Stephen
dc.date.accessioned2025-01-02T13:15:02Z
dc.date.available2025-01-02T13:15:02Z
dc.date.issued2021-03
dc.descriptionPublisher Copyright: © 2021 American Academy of Ophthalmology
dc.description.abstractPurpose: To investigate the effect of Corneal Visualization Scheimpflug Technology tonometry (CST) on intraocular pressure (IOP). Design: Cohort study. Participants: Patients with and without primary open-angle glaucoma (POAG) were included. Methods: Intraocular pressure was measured using the Icare rebound tonometer (ICRT; Icare Finland Oy) and the biomechanically corrected IOP (bIOP) using the CST. Intraocular pressure was measured at baseline with ICRT, followed by a CST measurement in one eye with the fellow eye acting as a control. Icare measurements were repeated at 10 seconds and 1, 2, 4, 8, 15, 30, and 60 minutes in both eyes. The ratio of test eye IOP to fellow eye IOP was used to control for intrasubject variation. Main Outcome Measures: Intraocular pressure change following Corneal Visualization Scheimflug Technology tonometry. Results: Forty participants (mean age, 54.09 ± 20.08 years) were included comprising 20 patients with POAG and 20 patients with no ocular abnormalities other than cataract. Mean central corneal thickness was similar in those without POAG (547.4 ± 55.05 μm) and with POAG (520.22 ± 37.59 μm; P = 0.14). No significant change was found in IOP measured with the ICRT in the fellow eye versus the 1-hour period in either the healthy (P = 0.87) or POAG (P = 0.92) group. Significant changes were found in IOP after CST measurement for both healthy (P < 0.01) and glaucomatous (P < 0.01) eyes. After the CST measurement, the IOP reduced continuously from a mean of 13.75 mmHg to 10.84 mmHg at 4 minutes for healthy eyes and from 13.28 mmHg to 11.11 mmHg at 8 minutes for glaucomatous eyes before approaching (83% for healthy eyes and 92% POAG eyes) the pre-CST measurement at 1 hour. Conclusions: Corneal Visualization Scheimpflug Technology tonometry causes a significant reduction in IOP in both glaucomatous and healthy eyes that lasts for at least 1 hour afterward.en
dc.description.statusPeer reviewed
dc.format.extent542982
dc.identifier.citationBorroni, D, Gadhvi, K A, Hristova, R, McLean, K, Rocha de Lossada, C, Romano, V & Kaye, S 2021, 'Influence of Corneal Visualization Scheimpflug Technology Tonometry on Intraocular Pressure', Ophthalmology Science, vol. 1, no. 1, 100003. https://doi.org/10.1016/j.xops.2021.100003
dc.identifier.doi10.1016/j.xops.2021.100003
dc.identifier.issn2666-9145
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/17005
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85114079400&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofOphthalmology Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectBiomechanics
dc.subjectCST
dc.subjectGlaucoma
dc.subjectIntraocular pressure
dc.subject3.2 Clinical medicine
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectOphthalmology
dc.titleInfluence of Corneal Visualization Scheimpflug Technology Tonometry on Intraocular Pressureen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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