ArticleVeterinary world2021
Comparison among TonoVet, TonoVet Plus, Tono-Pen Avia Vet, and Kowa HA-2 portable tonometers for measuring intraocular pressure in dogs.
Article in Veterinary world, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 15 citations in OpenAlex.
- Breed-Specific Relationship Between Rebound Tonometers (TonoVet and TonoVet Plus) in Labrador Retrievers.Veterinary ophthalmology · 2026Article
- Comparison of TonoLab, TonoVet Plus, and Tono-Pen AVIA Vet Tonometers for Measuring Intraocular Pressure in Rats.Veterinary ophthalmology · 2026Article
- Comparison of measurement performance among Tono-Vera vet, Tono-Pen vet, and Tono-Vet plus using an ex vivo porcine eye model.BMC veterinary research · 2025Article
- Canine intraocular pressure dynamics during mild-pain ophthalmic procedures in three premedication protocols.Veterinary world · 2025Article
- An assessment of bacterial transmission via rebound tonometry: AnOpen veterinary journal · 2024Article
- Comparison of three methodologies for measuring intraocular pressure in healthy cats.Veterinary world · 2024Article
- Comparison of Tonovet® and Tonovet plus® tonometers for measuring intraocular pressure in dogs, cats, horses, cattle, and sheep.Veterinary world · 2024Article
- Comparison of the TONOVET Plus®, TonoVet®, and Tono-Pen Vet™ tonometers in normal cats and cats with glaucoma.Veterinary ophthalmology · 2023Article
- Age-associated changes in electroretinography measures in companion dogs.Documenta ophthalmologica. Advances in ophthalmology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimTonometers are an important instrument for measuring intraocular pressure (IOP) in the diagnosis of glaucoma or uveitis. This study aimed to compare the accuracy of the main types of tonometers with different IOP measurement methodologies in dogs: TonoVet and TonoVet Plus (rebound), Tono-Pen Avia Vet (applanation), and Kowa HA-2 (Goldmann applanation). MATERIALS AND
methodsIOP was measured in 152 eyes of 76 dogs. A postmortem study was performed by comparing manometry and tonometry values and calculating the correlation coefficient (r
resultsIn the postmortem study, the values of r
conclusionThere was a strong correlation between IOP values and manometry in all the tonometers. The highest values were obtained with TonoVet Plus and the lowest with Kowa HA-2. All tonometers accurately measured IOP in dogs, including the latest TonoVet Plus, which showed an excellent correlation coefficient.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.