{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T11:58:26Z","timestamp":1780401506435,"version":"3.54.1"},"reference-count":32,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,6,6]],"date-time":"2012-06-06T00:00:00Z","timestamp":1338940800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Veterinary Ophthalmology"],"published-print":{"date-parts":[[2013,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Objective\u00a0<\/jats:bold>To validate intraocular pressure (IOP) readings obtained in cats with the TonoVet<jats:sup>\u00ae<\/jats:sup>tonometer.<\/jats:p><jats:p><jats:bold>Animals studied\u00a0<\/jats:bold>IOP readings obtained with the TonoVet<jats:sup>\u00ae<\/jats:sup>were compared to IOP readings determined by manometry and by the Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>in 1 normal cat and two glaucomatous cats. TonoVet<jats:sup>\u00ae<\/jats:sup>and Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>readings were also compared in a further six normal and nine glaucomatous cats.<\/jats:p><jats:p><jats:bold>Procedures\u00a0<\/jats:bold>The anterior chambers of both eyes of three anesthetized cats were cannulated and IOP was varied manometrically, first increasing from 5 to 70\u2003mmHg in 5\u2003mmHg increments, then decreasing from 70 to 10\u2003mmHg in 10\u2003mmHg decrements. At each point, two observers obtained three readings each from both eyes, with both the TonoVet<jats:sup>\u00ae<\/jats:sup>and Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>. IOP was measured weekly for 8\u2003weeks with both tonometers in six normal and nine glaucomatous unsedated cats. Data were analyzed by linear regression. Comparisons between tonometers and observers were made by paired student<jats:italic>t<\/jats:italic>\u2010test.<\/jats:p><jats:p><jats:bold>Results\u00a0<\/jats:bold>The TonoVet<jats:sup>\u00ae<\/jats:sup>was significantly more accurate than the Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>(<jats:italic>P<\/jats:italic>\u2003=\u20030.001), correlating much more strongly with manometric IOP. In the clinical setting, the Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>underestimated IOP when compared with the TonoVet<jats:sup>\u00ae<\/jats:sup>.<\/jats:p><jats:p><jats:bold>Conclusions\u00a0<\/jats:bold>Both the TonoVet<jats:sup>\u00ae<\/jats:sup>and Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>provide reproducible IOP measurements in cats; however, the TonoVet<jats:sup>\u00ae<\/jats:sup>provides readings much closer to the true IOP than the Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>. The TonoVet<jats:sup>\u00ae<\/jats:sup>is superior in accuracy to the Tono\u2010Pen XL<jats:sup>\u2122<\/jats:sup>for the detection of ocular hypertension and\/or glaucoma in cats in a clinical setting.<\/jats:p>","DOI":"10.1111\/j.1463-5224.2012.01038.x","type":"journal-article","created":{"date-parts":[[2012,6,6]],"date-time":"2012-06-06T08:07:16Z","timestamp":1338970036000},"page":"111-118","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":46,"title":["Validation of the TonoVet<sup>\u00ae<\/sup>rebound tonometer in normal and glaucomatous cats"],"prefix":"10.1111","volume":"16","author":[{"given":"Gillian J.","family":"McLellan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeremy P.","family":"Kemmerling","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julie A.","family":"Kiland","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,6,6]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1463-5224.2011.00912.x"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.2460\/javma.2001.219.1406"},{"key":"e_1_2_6_4_2","first-page":"485","article-title":"Feline glaucoma: a retrospective study of 29 animal cases","volume":"25","author":"Ridgway MD","year":"1989","journal-title":"Journal of the American Animal Hospital Association"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1463-5224.2001.00169.x"},{"key":"e_1_2_6_6_2","first-page":"87","article-title":"Feline glaucoma. 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