Evaluation of the effect of disposable tonometer cover brand on performance of Tono‐Pen Vet in canine eyes
| Autor: | Vanessa Y. Yang, J. Seth Eaton, Paul E. Miller, Scott Hetzel |
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| Rok vydání: | 2021 |
| Předmět: |
Male
medicine.medical_specialty Intraocular pressure genetic structures Manometry 040301 veterinary sciences Intraclass correlation Tono pen Article 0403 veterinary science Tonometry Ocular 03 medical and health sciences Dogs 0302 clinical medicine Ophthalmology medicine Animals Measurement repeatability Intraocular Pressure General Veterinary business.industry Reproducibility of Results 04 agricultural and veterinary sciences Repeatability eye diseases 030221 ophthalmology & optometry Cover (algebra) sense organs business |
| Zdroj: | Vet Ophthalmol |
| ISSN: | 1463-5224 1463-5216 |
| DOI: | 10.1111/vop.12877 |
| Popis: | PRIMARY OBJECTIVE: To evaluate the effect of latex tip cover manufacturer on accuracy and repeatability of Tono-Pen Vet(™) in canine eyes. ANIMAL STUDIED: 12 enucleated globes from 6 dogs PROCEDURES: The anterior chamber was cannulated and connected to a calibrated manometer. Intraocular pressure (IOP) measurements were obtained using the Tono-Pen Vet and TONOVET Plus at manometric IOP ranging from 5 to 80 mmHg. At each IOP, the Tono-Pen Vet was used with a new Ocu-Film(™) latex tip cover (the only manufacturer-approved brand of cover) followed by a new Softips(™) latex tip cover. For comparison, the TONOVET Plus was also used at each IOP with a new disposable rebound probe. Measured IOP values were analyzed by linear regression and intraclass correlation coefficient (ICC). RESULTS: Tono-Pen Vet accuracy was unaffected by tip cover manufacturer or by frequent change in cover. Using ICC analysis, repeatability of measurements using either tonometer was good to excellent at physiologic IOP levels but variably decreased with both devices at supraphysiologic IOP. CONCLUSIONS: Neither tip cover manufacturer nor frequent changes in tip cover adversely affect Tono-Pen Vet accuracy. Repeatability of measurements with Tono-Pen Vet and TONOVET Plus is widely variable at supraphysiologic IOP. Therefore, minor changes in IOP > 25 mmHg should not be used to make clinical decisions without considering this variability. |
| Databáze: | OpenAIRE |
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