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Goldmann Applanation Tonometry Versus Dynamic Contour Tonometry After Vitrectomy

Overview of attention for article published in Journal of Glaucoma, August 2016
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Title
Goldmann Applanation Tonometry Versus Dynamic Contour Tonometry After Vitrectomy
Published in
Journal of Glaucoma, August 2016
DOI 10.1097/ijg.0000000000000398
Pubmed ID
Authors

Nikolaos Mamas, Matthias Fuest, Antonios Koutsonas, Gernot Roessler, Babac E. Mazinani, Peter Walter, Niklas Plange

Abstract

The aim of the study was to investigate the agreement of intraocular pressure (IOP) measurement using dynamic contour tonometry (DCT) and Goldmann applanation tonometry (GAT) in eyes after vitrectomy with intraocular gas endotamponade, in eyes after vitrectomy with no tamponade, and in controls. In this prospective comparative study IOP was measured with GAT and DCT in 41 eyes with gas endotamponade (sulfur hexafluoride 20%) 1 to 3 days after vitrectomy, in 32 postvitrectomy eyes with intraocular water, and in 46 control eyes with no history of glaucoma or intraocular surgery. Corneal pachymetry and axial length measurements were additionally performed. The mean difference between GAT and DCT (GAT-DCT) in gas-filled eyes was 3.1 mm Hg [SD=6.2 mm Hg], that in eyes after vitrectomy with no tamponade was 0.4 mm Hg (SD=4.8 mm Hg), and in control eyes was 0.4 mm Hg (SD=3.8 mm Hg). No significant correlation was found between the differences of GAT and DCT (GAT-DCT) and the mean IOP of GAT and DCT in water-filled eyes (r=-0.25, P=0.18) and control eyes (r=0.23, P=0.13), but a significant correlation was found in the gas-filled eyes (r=0.71, P<0.0001). A significant correlation between central corneal thickness and the mean difference of both methods was seen only in the control group (r=0.36, P=0.03). IOP as determined by DCT underestimates IOP in gas-filled eyes compared with GAT, as GAT values were on average 3.1 mm Hg higher compared with those of DCT. The extent of IOP underestimation using DCT increases with higher IOP values. In the group of eyes after vitrectomy and in normal eyes we found a generally good agreement between the 2 methods, although high interindividual discrepancies were present. Our findings suggest that the 2 devices should not be used interchangeably in IOP evaluation after vitrectomy with gas endotamponade, which remains a difficult challenge.

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Geographical breakdown

Country Count As %
Unknown 10 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 2 20%
Student > Bachelor 2 20%
Other 1 10%
Lecturer 1 10%
Student > Doctoral Student 1 10%
Other 2 20%
Unknown 1 10%
Readers by discipline Count As %
Medicine and Dentistry 6 60%
Neuroscience 1 10%
Nursing and Health Professions 1 10%
Unknown 2 20%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 August 2016.
All research outputs
#20,656,820
of 25,374,647 outputs
Outputs from Journal of Glaucoma
#2,284
of 2,829 outputs
Outputs of similar age
#299,486
of 381,036 outputs
Outputs of similar age from Journal of Glaucoma
#58
of 84 outputs
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