Next Article in Journal
The Evolving Role of Ophthalmology Clinics in Screening for Early Alzheimer’s Disease: A Review
Previous Article in Journal
Current Choroidal Imaging Findings in Central Serous Chorioretinopathy
 
Search for Articles:
Title / Keyword
Author / Affiliation
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
Journals
Vision
Volume 4
Issue 4
10.3390/vision4040045
vision-logo
Submit to this Journal Review for this Journal Edit a Special Issue
► Article Menu

Article Menu

share announcement question_answer thumb_up
...
textsms
...
Article

The Effect of Corneal Thickness, Densitometry and Curvature on Intraocular Pressure Measurements Obtained by Applanation, Rebound and Dynamic Contour Tonometry

by
Marco Antonio de Castro Olyntho Junior
1,2,*,
Lucas Bertazzi Augusto
1,
Carolina P. B. Gracitelli
3,4 and
Andrew J. Tatham
2
1
Olyntho Oftalmo.center, 15091-751 São José do Rio Preto, São Paulo, Brazil
2
University of Edinburgh, Edinburgh EH8 9YL, Scotland, UK
3
Department of Ophthalmology and Visual Sciences, Federal University of São Paulo, 13565-905 São Paulo, Brazil
4
Centro de Estudos Alcides Hirai, Ver Mais Oftalmologia, 07750-000 Vinhedo, São Paulo, Brazil
*
Author to whom correspondence should be addressed.
Vision 2020, 4(4), 45; https://doi.org/10.3390/vision4040045
Received: 21 September 2020 / Revised: 10 October 2020 / Accepted: 19 October 2020 / Published: 21 October 2020
View Full-Text Download PDF
Browse Figures
Review Reports

Abstract

Evaluate the effect of corneal thickness, densitometry and curvature on intraocular pressure (IOP) measurements obtained by Goldmann applanation tonometry (GAT), non-contact tonometry (NCT), rebound tonometry (RT), and dynamic contour tonometry (DCT). A cross-sectional prospective study involving 40 participants was performed. Corneal measurements were obtained using Pentacam (Oculus GMbH, Wetzlar, Germany), densitometry was measured at annuli of 0–2, 2–6, 6–10 and 10–12 mm. The relationship between corneal thickness (central, 4 and 6 mm), corneal astigmatism and corneal densitometry and IOP was examined. There was a significant relationship between corneal thickness (central, 4 and 6 mm) and GAT180, GAT90, RT, and NCT (P < 0.001 for all comparisons) but not for DCT. Higher corneal densitometry (6–10 mm and 10–12 mm zones) was associated with higher IOP from GAT180 and GAT90, and higher densitometry in the 6–10 mm zone correlated with higher IOP from NCT, however corneal densitometry increased with age. Accounting for age, the relationship between corneal densitometry and IOP measurements was not significant. In eyes with greater corneal astigmatism there was a greater difference between GAT90 and GAT180 measurements. IOP measurements may be affected by corneal thickness, densitometry and curvature. DCT was less affected by properties of the cornea compared to other devices. View Full-Text
Keywords: corneal densitometry; tonometry; intraocular pressure; glaucoma corneal densitometry; tonometry; intraocular pressure; glaucoma
►▼ Show Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
SciFeed

Share and Cite

MDPI and ACS Style

Olyntho Junior, M.A.d.C.; Augusto, L.B.; Gracitelli, C.P.B.; Tatham, A.J. The Effect of Corneal Thickness, Densitometry and Curvature on Intraocular Pressure Measurements Obtained by Applanation, Rebound and Dynamic Contour Tonometry. Vision 2020, 4, 45. https://doi.org/10.3390/vision4040045

AMA Style

Olyntho Junior MAdC, Augusto LB, Gracitelli CPB, Tatham AJ. The Effect of Corneal Thickness, Densitometry and Curvature on Intraocular Pressure Measurements Obtained by Applanation, Rebound and Dynamic Contour Tonometry. Vision. 2020; 4(4):45. https://doi.org/10.3390/vision4040045

Chicago/Turabian Style

Olyntho Junior, Marco A.d.C., Lucas B. Augusto, Carolina P.B. Gracitelli, and Andrew J. Tatham. 2020. "The Effect of Corneal Thickness, Densitometry and Curvature on Intraocular Pressure Measurements Obtained by Applanation, Rebound and Dynamic Contour Tonometry" Vision 4, no. 4: 45. https://doi.org/10.3390/vision4040045

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Map by Country/Region

1
Back to TopTop