Comparison of a rebound and an applanation tonometer for measuring intraocular pressure in normal rabbits

Abstract

The Tono-Pen Avia(®) recorded higher levels of IOP compared with the Tonovet(®). Early in the day, the IOP of rabbits was higher than later in the day, regardless of the tonometer used.

Applanation optical coherence elastography: noncontact measurement of intraocular pressure, corneal biomechanical properties, and corneal geometry with a single instrument

“…The rebound tonometer underestimates IOP, 27 which was corroborated in our results. Goldmann applanation tonometry (GAT) is generally regarded as the "gold standard" of noninvasive IOP measurements.…”

Measurement of intraocular pressure in clinically normal Turkish Shepherd Dogs with the rebound tonometer (TonoVet®) and the applanation tonometer (Tono-Pen Vet®)

“…IOP value may vary according to species, age, sex, measurement technique, researcher's experience, circadian rhythm, stress, and anesthesia application (30).…”

“…In rebound tonometry, a magnetic probe contacts the corneal surface and measures IOP (35). A popular rebound tonometer is TonoVet ® (ICare Finland Oy, Helsinki, Finland) (32) featuring different calibration modes (‚h' mode for horses, ‚d' for cats, and ‚p' for dogs) that facilitate species-specific IOP measurements in animals (30). This technique is becoming very popular among veterinary ophthalmologists because it provides quick and accurate measurements, is easy to use and does not require topical anesthesia before application (35).…”

Farklı Dozlarda Uygulanan Ksilazin HCl’ün Tavşanlarda İntraoküler Basınç Üzerine Etkisi

“…Normal IOP measurements using rebound tonometer in rabbits are ranged between 9.51±2.62 mm Hg [10] . In the current study, the mean IOP of baseline values for all rabbits were within the reference values.…”

“…Handling of rabbit and calibration of tonometer were accomplished as previous report [10] . IOP was measured with a rebound tonometer (Tonovet, Icare, Vantaa, Finland).…”