Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey
Abstract Objective To examine the accuracy and reproducibility of intraocular pressure (IOP) measurements obtained by the TonoVet ® rebound tonometer. Animals studied Freshly enucleated healthy eyes of 44 free‐ranging birds of prey out of the species Haliaeetus albicilla, Accipiter gentilis, Accipit...
Published in: | Veterinary Ophthalmology |
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Online Access: | http://dx.doi.org/10.1111/j.1463-5224.2010.00817.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-5224.2010.00817.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-5224.2010.00817.x |
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crwiley:10.1111/j.1463-5224.2010.00817.x 2024-06-02T07:54:12+00:00 Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey Reuter, Anne Müller, Kerstin Arndt, Gisela Eule, Johanna Corinna 2010 http://dx.doi.org/10.1111/j.1463-5224.2010.00817.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-5224.2010.00817.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-5224.2010.00817.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Veterinary Ophthalmology volume 13, issue s1, page 80-85 ISSN 1463-5216 1463-5224 journal-article 2010 crwiley https://doi.org/10.1111/j.1463-5224.2010.00817.x 2024-05-03T11:34:26Z Abstract Objective To examine the accuracy and reproducibility of intraocular pressure (IOP) measurements obtained by the TonoVet ® rebound tonometer. Animals studied Freshly enucleated healthy eyes of 44 free‐ranging birds of prey out of the species Haliaeetus albicilla, Accipiter gentilis, Accipiter nisus, Buteo buteo, Falco tinnunculus, Strix aluco, Asio otus and Tyto alba euthanized because of unrelated health problems . Procedures IOP readings from the TonoVet ® were compared with a manometric device, with IOP being set from 5 to 100 mmHg in steps of 5 mmHg by adjusting the height of a NaCl solution reservoir connected to the eye. Reproducibility of the TonoVet ® readings was determined by repeated measurements. Results TonoVet ® and manometer values showed a strong linear correlation. In the Accipitridae, the TonoVet ® tended to increasingly overestimate IOP with increasing pressure, while in the other families, it increasingly underestimated it. In the Sparrowhawk, the values almost represent the ideal line. Reproducibility of TonoVet ® values decreases with increasing pressure in the clinically important range from 5 to 60 mmHg. Conclusion IOP values measured with the TonoVet ® demonstrated species specific deviation from the manometric measurements. These differences should be considered when interpreting IOP values. Using the regression formulae presented, corrected IOP values could be calculated in a clinical setting. Article in Journal/Newspaper Accipiter gentilis Haliaeetus albicilla Wiley Online Library Veterinary Ophthalmology 13 s1 80 85 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Objective To examine the accuracy and reproducibility of intraocular pressure (IOP) measurements obtained by the TonoVet ® rebound tonometer. Animals studied Freshly enucleated healthy eyes of 44 free‐ranging birds of prey out of the species Haliaeetus albicilla, Accipiter gentilis, Accipiter nisus, Buteo buteo, Falco tinnunculus, Strix aluco, Asio otus and Tyto alba euthanized because of unrelated health problems . Procedures IOP readings from the TonoVet ® were compared with a manometric device, with IOP being set from 5 to 100 mmHg in steps of 5 mmHg by adjusting the height of a NaCl solution reservoir connected to the eye. Reproducibility of the TonoVet ® readings was determined by repeated measurements. Results TonoVet ® and manometer values showed a strong linear correlation. In the Accipitridae, the TonoVet ® tended to increasingly overestimate IOP with increasing pressure, while in the other families, it increasingly underestimated it. In the Sparrowhawk, the values almost represent the ideal line. Reproducibility of TonoVet ® values decreases with increasing pressure in the clinically important range from 5 to 60 mmHg. Conclusion IOP values measured with the TonoVet ® demonstrated species specific deviation from the manometric measurements. These differences should be considered when interpreting IOP values. Using the regression formulae presented, corrected IOP values could be calculated in a clinical setting. |
format |
Article in Journal/Newspaper |
author |
Reuter, Anne Müller, Kerstin Arndt, Gisela Eule, Johanna Corinna |
spellingShingle |
Reuter, Anne Müller, Kerstin Arndt, Gisela Eule, Johanna Corinna Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
author_facet |
Reuter, Anne Müller, Kerstin Arndt, Gisela Eule, Johanna Corinna |
author_sort |
Reuter, Anne |
title |
Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
title_short |
Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
title_full |
Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
title_fullStr |
Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
title_full_unstemmed |
Accuracy and reproducibility of the TonoVet ® rebound tonometer in birds of prey |
title_sort |
accuracy and reproducibility of the tonovet ® rebound tonometer in birds of prey |
publisher |
Wiley |
publishDate |
2010 |
url |
http://dx.doi.org/10.1111/j.1463-5224.2010.00817.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1463-5224.2010.00817.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1463-5224.2010.00817.x |
genre |
Accipiter gentilis Haliaeetus albicilla |
genre_facet |
Accipiter gentilis Haliaeetus albicilla |
op_source |
Veterinary Ophthalmology volume 13, issue s1, page 80-85 ISSN 1463-5216 1463-5224 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1463-5224.2010.00817.x |
container_title |
Veterinary Ophthalmology |
container_volume |
13 |
container_issue |
s1 |
container_start_page |
80 |
op_container_end_page |
85 |
_version_ |
1800744847042150400 |