Icare&lt;sup&gt;&amp;reg;&lt;/sup&gt; rebound tonometers: review of their characteristics and ease of use

Nakakura, Shunsuke

doi:10.2147/opth.s163092

Cited by 63 publications

(42 citation statements)

References 37 publications

(73 reference statements)

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“…This modern tonometer records the IOP, time and date and calculates the quality result using a dedicated algorithm. Every measurement is stored in the device and may become available to the physician later [102, 103]. Triggerfish: This modern device consists of a contact lens sensor and a small antenna near the eye that transmits data via wireless technology.…”

Section: Discussionmentioning

confidence: 99%

Novel dynamic corneal response parameters in a practice use: a critical review

Jędzierowska

Koprowski

2019

BioMed Eng OnLine

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Background Non-contact tonometers based on the method using air puff and Scheimpflug’s fast camera are one of the latest devices allowing the measurement of intraocular pressure and additional biomechanical parameters of the cornea. Biomechanical features significantly affect changes in intraocular pressure values, as well as their changes, may indicate the possibility of corneal ectasia. This work presents the latest and already known biomechanical parameters available in the new offered software. The authors focused on their practical application and the diagnostic credibility indicated in the literature. Discussion An overview of available literature indicates the importance of new dynamic corneal parameters. The latest parameters developed on the basis of biomechanics analysis of corneal deformation process, available in non-contact tonometers using Scheimpflug’s fast camera, are used in the evaluation of laser refractive surgery procedures, e.g. LASIK procedure. In addition, the assessment of changes in biomechanically corrected intraocular pressure confirms its independence from changes in the corneal biomechanics which may allow an intraocular pressure real assessment. The newly developed Corvis Biomechanical Index combined with the corneal tomography and topography assessment is an important aid in the classification of patients with keratoconus. Conclusion New parameters characterising corneal deformation, including Corvis Biomechanical Index and biomechanical compensated intraocular pressure, significantly extend the diagnostic capabilities of this device and may be helpful in assessing corneal diseases of the eye. Nevertheless, further research is needed to confirm their diagnostic pertinence.

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Section: Discussionmentioning

confidence: 99%

Novel dynamic corneal response parameters in a practice use: a critical review

Jędzierowska

Koprowski

2019

BioMed Eng OnLine

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“…Fortunately, the emergence of rebound tonometer makes up for the shortcomings of GAT and NCT. This type of tonometer was first described in 1997 by Kontiola and available as iCare TA01i in 2003 [10, 29]. ICare pro is the updated version of iCare TA01i launched in 2011.…”

Section: Discussionmentioning

confidence: 99%

“…The deceleration of the probe is calculated into the IOP and displayed on the device after six rebounds per measurement [8, 9]. Due to its comfortableness and ease of use, iCare has gained much attention in clinical practice [10], especially in children [11]. Non-contact tonometer (NCT) is developed over 30 years [12].…”

Section: Introductionmentioning

confidence: 99%

Comparability of three intraocular pressure measurement: iCare pro rebound, non-contact and Goldmann applanation tonometry in different IOP group

et al. 2019

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BackgroundMeasurement of intraocular pressure (IOP) is essential for glaucoma patients. Many factors such as central corneal thickness (CCT) can affect the accuracy of IOP measurement. The purpose of this study was to evaluate the agreement of IOP measured by non-contact tonometer (NCT), iCare pro rebound tonometer (iCare), and Goldmann applanation tonometer (GAT) in different IOP group.MethodsThis was a Hospital-based cross-sectional study. Two hundred subjects were enrolled in this study. All subjects underwent IOP measurement using an NCT–iCare–GAT sequence. Bland-Altman, Pearson correlation and intraclass correlation analysis were performed using SPSS 17.0 software. The influence of CCT on each IOP measurement methods was evaluated by linear regression analysis.ResultsThe mean difference (Δ) of NCT–GAT did not differ from (Δ) iCare–GAT in IOP < 10 and 10–21 mmHg group. However, (Δ) NCT–GAT was significantly higher than (Δ) iCare–GAT in IOP 22–30 and > 30 mmHg group (P < 0.05). Bland–Altman analysis showed significant agreement between the three devices (P < 0.01). IOP measurements of the three methods were significantly correlated with CCT (P < 0.01).ConclusionsICare pro shows a higher agreement with GAT over a wide range of IOP compared with NCT. The consistency between the three tonometers was similar in a low and normal IOP range. However, NCT shows a greater overestimate of IOP in moderate and higher IOP group. The variability of IOP measurement affected by CCT is NCT > iCare pro > GAT.

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“…Although various forms of ocular tonometry exist, rebound tonometry is particularly suited for this role. 10 Rebound tonometers have shown to be comparable to GAT in measurement of IOP, 11,12 and do not require regular calibration. 13 Additionally, they can be adapted into a small portable device that can be used with minimal training and do not require any topical anesthetic.…”

Section: Introductionmentioning

confidence: 99%

<p>Icare Home Tonometer: A Review of Characteristics and Clinical Utility</p>

Liu

Francesco

Schlenker

et al. 2020

OPTH

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The Icare HOME (TA022, Icare Oy, Vanda, Finland) is rebound tonometer recently approved by the US Food and Drug Administration in March 2017 designed for selfmeasurement of intraocular pressure (IOP). IOP remains a major modifiable risk factor for glaucoma progression; however, IOP measurements typically occur through single office measurements on Goldmann applanation tonometry (GAT) and do not always reveal the complete picture of patient's IOP patterns and daily fluctuations, which are important for accurate diagnosis and evaluation. Numerous studies have now compared the efficacy of the Icare HOME to that of GAT. The objective of this article is to review the existing literature surrounding the Icare HOME tonometer and its efficacy as a self-tonometer in comparison to GAT. The available literature has shown promising results in its accuracy of measuring IOP but suggests cautious usage in patients with central corneal thicknesses or IOP ranges that are outside of a certain range. This article will also provide details and example cases for when the Icare HOME may be most clinically useful.

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Icare<sup>®</sup> rebound tonometers: review of their characteristics and ease of use

Cited by 63 publications

References 37 publications

Novel dynamic corneal response parameters in a practice use: a critical review

Novel dynamic corneal response parameters in a practice use: a critical review

Comparability of three intraocular pressure measurement: iCare pro rebound, non-contact and Goldmann applanation tonometry in different IOP group

<p>Icare Home Tonometer: A Review of Characteristics and Clinical Utility</p>

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