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Abstract #69771 Published in IGR 18-2
A Pilot Evaluation Assessing the Ease of Use and Accuracy of the New Self/Home-Tonometer IcareHOME in Healthy Young Subjects
Noguchi A; Nakakura S; Fujio Y; Fukuma Y; Mori E; Tabuchi H; Kiuchi YJournal of Glaucoma 2016; 25: 835-841
PURPOSE: We investigated the ease of use and accuracy of a new self/home-tonometer (IcareHOME) versus Goldmann applanation tonometry (GAT) and the Icare tonometer (Icare) by measuring the diurnal intraocular pressure (IOP). PATIENTS AND METHODS: The right eyes of 43 healthy young subjects were studied. The IOP was measured using the IcareHOME, GAT, and Icare 6 times a day, every 2 hours, from 8:00 to 18:00. The coincidence of the diurnal curves among all tonometers was analyzed using a linear mixed model. The intradevice and interdevice agreement was evaluated using the intraclass correlation coefficients (ICC) and Bland-Altman method. The subjects' perception of the IcareHOME was evaluated using a questionnaire. RESULTS: The liner mixed model showed similar diurnal IOP curves for all tonometers (P=0.543); however, significant differences were observed between the tonometers over time (P<0.001). The intradevice repeatability was ICC>0.8 among all tonometers, although the interdevice agreement was lowest between the IcareHOME and GAT (ICC=0.641). The IOP values were significantly lower for the IcareHOME than for the GAT at 12:00, 16:00, and 18:00 (P<0.05, Tukey-Kramer test). The mean differences between the Icare and IcareHOME and GAT and IcareHOME were 0.83 and 1.03 mm Hg, respectively (95% limit of agreement: -4.17 to 5.84 mm Hg and -3.91 to 5.98 mm Hg, respectively). Regarding the subjects' perception of handling the IcareHOME, 17 (39.5%) subjects answered "easy to use," 20 (46.5%) answered "normal," and six (13.9%) answered "difficult to use." CONCLUSIONS: The IcareHOME can be used as a self/home-tonometer; however, it may result in lower IOP values.
*Department of Ophthalmology, Saneikai Tsukazaki Hospital, Himeji, Hyogo †Department of Ophthalmology and Visual Sciences, Graduate School of Biomedical Sciences, Hiroshima University, Higashihiroshima, Hiroshima, Japan.
Full articleClassification:
6.1.1 Devices, techniques (Part of: 6 Clinical examination methods > 6.1 Intraocular pressure measurement; factors affecting IOP)
