Estimation of intraocular pressure in normal canine eyes utilizing the newly introduced TonoVet Plus and TonoPen Avia, and their comparison to the established TonoVet.

Veterinary Ophthalmology
G Ben-Shlomo, Sarah F Muirhead

Abstract

To evaluate the IOP values obtained from normal canine eyes, by means of the TonoVet Plus (TVP) and TonoPen Avia (TPA), and compare them to an established tonometer, the TonoVet (TV). Tonometry was performed bilaterally in 50 healthy dogs, age 1-11 years. The rebound tonometers (TV and TVP) were used first (in a random order), and then, one drop of tetracaine hydrochloride was applied to each eye, and approximately one minute later the IOP was estimated using the TPA. The mean ± standard deviation (SD) was calculated for each tonometer and a paired Student's t test was used to compare the IOP values between tonometers. A P value ≤ .05 was considered significant. The agreement between tonometers was assessed by a Bland-Altman plot. The mean ± SD (range) IOP values were 15.0 ± 3.2 mm Hg (7-22), 19.2 ± 3.1 mm Hg (11-25), and 12.8 ± 2.9 mm Hg (6-19), for the TV, TVP, and TPA, respectively. The IOP values obtained by each tonometer were significantly different compared to the other two (P < .0001). There was a good agreement with fixed bias between all tonometers. The average IOP values of the TVP were significantly higher than those of the TV, which were significantly higher than those of the TPA, in normal canine eyes. Knowing the...Continue Reading

References

Mar 1, 1990·Veterinary Surgery : VS·W J TranquilliG J Benson
May 4, 2000·Acta Ophthalmologica Scandinavica·A I Kontiola
Oct 1, 1957·Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift für Augenheilkunde·H GOLDMANN, T SCHMIDT
Jul 29, 2005·Journal of the American Veterinary Medical Association·Amy M KnollingerPaul E Miller
Jan 24, 2006·American Journal of Veterinary Research·Christiane GörigMichael H Boevé
Feb 13, 2010·Veterinary Ophthalmology·Elina RusanenBernhard M Spiess
Jul 13, 2017·The Veterinary Journal·K L TofflemireG Ben-Shlomo

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Citations

Sep 6, 2020·Veterinary Ophthalmology·Minna P MustikkaThomas S C Grönthal
Oct 19, 2020·Veterinary Ophthalmology·Blanche D RodriguesPeterson Triches Dornbusch
Feb 23, 2021·Veterinary Ophthalmology·Andrew M GureshGeorgina M Newbold

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