Measurements obtained by the clinician with the Icare One tonometer were an average of 1.9 mmHg higher than those obtained by the patient’s family. Clinician-measured Icare One IOP values were 3.3 mmHg higher on average than GAT measurements. Icare One tonometer measurements were taken twice, once by a clinician and once by a family member. 14 compared IOP measurements made with Icare One tonometer and GAT in 60 children with diagnosed or suspected glaucoma. 13 reported that the mean IOP measured by Icare One tonometer was 2.3 mmHg higher than those obtained with GAT in 60 healthy individuals.
In addition, a survey about the use of the Icare One tonometer conducted among the study participants revealed patients aged 70 years and older considered the device difficult to use. Among the 95 patients (75.3%) that were able to use the Icare One tonometer and were included in the study, the mean IOP difference between the Icare One and GAT was 0.6 mmHg. 3 evaluated 74 glaucomatous and 52 nonglaucomatous right eyes of 126 patients. In another study comparing Icare One tonometer and GAT measurements, Rosentreter et al. They reported that adults over the age of 60 may have difficulty using the device properly, and that tremors and other systemic conditions seen in older adults may reduce the utility and reliability of the device in these patients. 12 compared Icare One and GAT measurements in 40 glaucoma patients and found that they were significantly correlated in the 60 age group.
#Icare home tonometer pro#
4 compared GAT, Icare Pro, and Icare One tonometer measurements in 60 healthy individuals and 90 glaucoma patients and reported no significant difference between GAT and the Icare Pro tonometer, while IOP measurements obtained with the Icare One were an average of 0.3 mmHg higher compared to the other two methods. Self-tonometry is important for enabling the evaluation of the IOP-lowering effect of treatment and demonstrating diurnal IOP fluctuations. The Icare One tonometer is a home tonometer designed for patients to measure their own IOP. 2 compared Icare Pro and GAT measurements in a study of 178 primary open-angle glaucoma patients and reported that there was a statistically significant correlation between the measured values, but noted that measurements were affected by central corneal thickness. 11 also reported that mean IOP was measured as 18.2 mmHg by GAT and 17.6 mmHg with the Icare tonometer, with high correlation (r=0.95).Brusini et al.
10 reported a high correlation and no statistically significant difference between mean IOPs with the Icare tonometer and GAT in glaucoma patients. Studies in the literature comparing the Icare Pro tonometer and GAT reported that IOP measurements obtained with the Icare Pro tonometer were 0.1-3.36 mmHg higher. It is especially convenient for children, individuals with deep-set eyes, and patients who have poor mobility or cannot be examined at the slit-lamp due to physical problems. 1, 2 The Icare tonometer is a small, portable, easy-to-use device that enables measurement without the use of biomicroscope or anesthetic, provides rapid results in uncooperative patients, and is useful in daily routine clinical practice.
The GAT, developed by Goldmann and Schmidt, is widely accepted and is still used as the gold standard method for the measurement of IOP. This study was conducted to compare measurements obtained with the Icare Pro tonometer and Icare One tonometers in healthy eyes.Īccurate measurement and regular monitoring of IOP are important in the diagnosis, follow-up, and treatment of glaucoma. The development of home tonometers patients can use to assess their IOP is important for evaluating the effectiveness of antiglaucoma therapy in reducing IOP. 2 The Icare One tonometer was designed to allow individuals to measure their own IOP. The average of six measurements obtained by the device is displayed as the IOP value.
Measurements are obtained by striking the central cornea with a single-use probe on the device’s tip. The Icare Pro is a small, portable, easy-to-use tonometer that operates on the principle of rebound measurement and does not require topical anesthesia. Various devices are currently used to measure IOP, but the Goldmann applanation tonometer (GAT) is still the gold standard. The accurate measurement and regular monitoring of intraocular pressure (IOP) are critical in the diagnosis, follow-up, and treatment of glaucoma.
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