Peer-reviewed veterinary case report
Accuracy of eyeTelemed IOPvet device for measuring eye pressure
By Kapeller, Lydia E et al.·Published in Veterinary ophthalmology·2024·Department of Small Animal Clinical Sciences, United States·View original on PubMed →
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Original publication title: Validation of the eyeTelemed IOPvet indentation tonometer for use in dogs.
- Species:
- dog
Plain-English summary
A study tested a new device called the eyeTelemed IOPvet tonometer for measuring eye pressure in dogs, specifically looking at Beagles with glaucoma. While the device was good at identifying normal eye pressures, it struggled to accurately detect high pressures associated with glaucoma, missing many cases. This means that the IOPvet may not be reliable for diagnosing elevated eye pressure in dogs, and improvements are needed for it to work effectively. Pet owners should be aware that current methods for checking eye pressure may still be necessary for accurate glaucoma diagnosis.
People also search for: dog eye pressure test · Beagle glaucoma symptoms · how to check dog eye pressure
Abstract
OBJECTIVE: To assess the accuracy of canine intraocular pressure (IOP) estimates from the eyeTelemed IOPvet indentation tonometer. ANIMALS STUDIED: Part 1 included 54 eyes from 28 Beagle dogs-23 ADAMTS10-mutants with open-angle glaucoma and 5 normals. Part 2 involved five normal canine ex vivo globes. PROCEDURE: Part 1 (in vivo) compared IOPvet estimates in normal and glaucomatous dogs to Reichert Tono-Vera® Vet rebound tonometry. The three IOPvet estimates were green (normal; <20 mmHg, according to the manufacturer), yellow (elevated; 20-30 mmHg), and red (high; >30 mmHg). In Part 2 (ex vivo), the pressure inside freshly enucleated normal canine eyes was progressively increased from 5 to 80 mmHg and compared to IOPvet estimates. Descriptive statistics compared IOPvet estimates to rebound tonometry and direct manometry, with the threshold from normal to glaucoma set at 30 mmHg. RESULTS: In Part 1 (in vivo), normal pressures (≤30 mmHg) were mainly identified correctly as green or yellow-110 of 111 estimates, corresponding to a specificity of 99%. Only 16 of 125 affected estimates were correctly displayed in the >30-mmHg range; the remaining 109 showed ≤30 mmHg, corresponding to a sensitivity of 13%. In Part 2 (ex vivo), all normal pressures were correctly estimated with green, but 64 of 88 manometric IOPs >30 mmHg were falsely estimated as 20-30 mmHg. CONCLUSIONS: The IOPvet is inaccurate in estimating canine IOP with a low sensitivity at identifying dogs with IOP > 30 mmHg. Canine-specific instrument revision is required to correctly identify elevated (yellow = 20-30 mmHg) and high (red >30 mmHg) IOPs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/38563215/