ISSN: 2459 - 1777 | E-ISSN 2587-0394
Volume: 4
Issue: 1
Year: 2019
Comparison of Goldmann Applanation Tonometry and Icare Rebound Tonometry in Eyes of Varied Corneal Thickness [Beyoglu Eye J]
Beyoglu Eye J. 2017; 2(1): 9-12 | DOI: 10.14744/bej.2017.32932  

Comparison of Goldmann Applanation Tonometry and Icare Rebound Tonometry in Eyes of Varied Corneal Thickness

Isil Pasaoglu1, Cigdem Altan1, Onur Olcucu2, Nese Alagoz1, Banu Satana1, Berna Basarir1, Funda Onmez1, Muhittin Taskapili1
1Department Of Glaucoma, Beyoglu Eye Training And Research Hospital, Istanbul, Turkey
2Department of Ophthalmology, Kırklareli State Hospital, Kırklareli, Turkey

INTRODUCTION: The aim of the present study was to compare intraocular pressure (IOP) level as measured with Goldmann applanation tonometry (GAT) and Icare rebound tonometry (RBT; Icare Finland Oy, Vantaa, Finland) in patients with varied central corneal thickness (CCT).
METHODS: Total of 138 eyes of 138 consecutive patients from glaucoma department were studied. Ultrasound pachymeter was used to measure CCT in all cases and patients were divided into 3 groups according to CCT. Group 1 comprised patients with thin CCT (<520 μ), Group 2 was made up of patients with normal CCT (520-570 μ), and patients with thick CCT (>570 μ) composed Group 3. IOP was measured with RBT, which uses average of 6 readings, followed by GAT. Measurements of groups were compared.
RESULTS: Mean age of patients was 59.4±10.9 years. Mean CCT value was 494.9±15.9 μ in Group 1 (n=40), 549.1±16.3 μ in Group 2 (n=52), and 604.0±22.2 μ in Group 3 (n=46). Mean IOP measurement obtained by GAT and RBT was 13.2±4.0 and 13.8±3.9 mmHg, respectively, in Group 1 (p=0.013), 16.9±3.2 and 16.8±3.1 mmHg in Group 2 (p=0.745), and 18.1±3.4 and 18.4±3.8 mmHg in Group 3 (p=0.359). Mean difference in IOP for entire study group between GAT and RBT was -0.21±1.7 mmHg (p=0.15). This difference was statistically significant only in Group 1 (p=0.013). Positive correlation was found between CCT and measurement via both GAT and RBT (p<0.01). There was no correlation between CCT and difference in IOP obtained by RBT and GAT.
DISCUSSION AND CONCLUSION: Icare RBT demonstrated agreement with Goldmann applanation tonometry, except in thin corneas.

Keywords: Corneal thickness, goldmann applanation tonometry, Icare rebound tonometry


Isil Pasaoglu, Cigdem Altan, Onur Olcucu, Nese Alagoz, Banu Satana, Berna Basarir, Funda Onmez, Muhittin Taskapili. Comparison of Goldmann Applanation Tonometry and Icare Rebound Tonometry in Eyes of Varied Corneal Thickness. Beyoglu Eye J. 2017; 2(1): 9-12

Corresponding Author: Isil Pasaoglu, Türkiye


TOOLS
Full Text PDF
Print
Download citation
RIS
EndNote
BibTex
Medlars
Procite
Reference Manager
Share with email
Share
Send email to author

Similar articles
PubMed
Google Scholar




Copyright © 2019 Beyoglu Eye Journal LookUs & Online Makale