April 2014
Volume 55, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2014
TONOMETRIC VALUES OF INTRAOCULAR PRESSURE, USING THE GOLDMANN TONOMETER, TONOPEN AND DIATON TRANSPALPEBRAL TONOMETER IN KERATOCONUS.
Author Affiliations & Notes
  • Felipe Taveira Daher
    Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo, São Paulo, Brazil
  • Augusto Paranhos
    Department of Ophthalmology and Visual Sciences, Paulista School of Medicine, São Paulo Hospital, Federal University of São Paulo, São Paulo, Brazil
  • Footnotes
    Commercial Relationships Felipe Daher, None; Augusto Paranhos, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science April 2014, Vol.55, 120. doi:
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      Felipe Taveira Daher, Augusto Paranhos; TONOMETRIC VALUES OF INTRAOCULAR PRESSURE, USING THE GOLDMANN TONOMETER, TONOPEN AND DIATON TRANSPALPEBRAL TONOMETER IN KERATOCONUS.. Invest. Ophthalmol. Vis. Sci. 2014;55(13):120.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

To evaluate agreement among Goldmann, Tonopen and Diaton transpalpebral tonometers.

 
Methods
 

Patients were divided in two groups, control and keratoconus and intraocular pressure (IOP) was measured by in both eyes in a randomly order with the three tonometers. Agreement evaluation was performed by interclass correlation coefficient (ICC) among the three different tonometers on each group and Blant Altman plot with regression of agreement.

 
Results
 

The ICC was satisfactory for the three measures with the Diaton transpalpebral tonometer (0.88 - CI: 0.80 a 0.92), but weak among the three different tonometers (0.60 - CI: 0.35 a 0.76). Regression analysis of the differences show a trend of the discordance to increase on the extreme values of the transpalpebral tonometer comparing to the Goldmann tonometer. For the lowest intraocular pressures the transpalpebral tonometer trend to measures the pressure higher and, for the highest pressures, the transpalpebral tonometer trends to measure lower, independently of the group, however the lower intraocular pressures were of the keratoconus group.

 
Conclusions
 

The measures of Diaton transpalpebral tonometer shows satisfactory reproducibility. In patients with keratoconus, Diaton IOP measures were higher than the Goldmann tonometer.

  
Keywords: 568 intraocular pressure  
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