The effect of central corneal thickness on intraocular pressure values using various tonometers in the dog

Objective To compare intraocular pressure readings from three different tonometers, the Tono‐Pen AVIA® (TP), TonoVet® (TV) and TonoVet Plus® (TV+) and to determine how measurements from each tonometer are affected by central corneal thickness (CCT). Animals Ninety dogs. Procedures Normal dogs and do...

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Bibliographic Details
Published in:Veterinary ophthalmology 2021-03, Vol.24 (S1), p.154-161
Main Authors: Guresh, Andrew M., Horvath, Stephen J., Gemensky‐Metzler, Anne, Miller, Eric, Yildiz, Vedat, Myers, John V., Newbold, Georgina M.
Format: Article
Language:English
Subjects:
central corneal thickness
dogs
intraocular pressure
ophthalmology
pachymetry
tonometry
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Summary:Objective To compare intraocular pressure readings from three different tonometers, the Tono‐Pen AVIA® (TP), TonoVet® (TV) and TonoVet Plus® (TV+) and to determine how measurements from each tonometer are affected by central corneal thickness (CCT). Animals Ninety dogs. Procedures Normal dogs and dogs with ocular disease were selected for study inclusion. Central corneal thickness measurements were gathered with the Pachette 4 ultrasonic pachymeter, and IOP measurements were gathered with the three tonometers in random order. ANOVA or Wilcoxon tests were utilized for overall group comparisons. Linear regression analyses were utilized to determine the association between IOP and CCT. Results When comparing tonometers to each other, for all dogs, readings from the TV+were significantly different compared to the TV (p = 
ISSN:1463-5216
1463-5224
DOI:10.1111/vop.12873