{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T02:00:14Z","timestamp":1760148014141,"version":"build-2065373602"},"reference-count":19,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,3,23]],"date-time":"2023-03-23T00:00:00Z","timestamp":1679529600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Purpose: To investigate how many tests need to be performed to adequately assess intraocular pressure (IOP) diurnal change using a self-measuring rebound tonometer among glaucoma patients. Subjects and Methods: Adult patients with primary open-angle glaucoma were included. IOP was measured in the morning (6 AM to 9 AM), afternoon (12 PM to 3 PM), and at night (6 PM to 9 PM) for seven consecutive days. Twenty-four (7 males and 17 females, mean age 59.5 \u00b1 11.0 years) patients who successfully measured IOP at least three times per day during the correct time periods for four days were subjected to analysis. Results: The IOP rhythm was significantly greater on the first day of measurement (6.6 \u00b1 3.6 mmHg) than that averaged during subsequent days (4.4 \u00b1 2.2 mmHg). The time of the highest and lowest IOP measurements on the first day of IOP measurement and during the entire measurement period coincided in 72.9% and 64.6% of cases, respectively. The concordance rate of the highest IOP time between the whole measurement period and each measurement day was less than 60%. Conclusion: The diurnal IOP rhythm measured by the patients themselves was not consistent, and multiple days of measurements may be necessary to correctly assess diurnal IOP rhythm.<\/jats:p>","DOI":"10.3390\/jcm12072460","type":"journal-article","created":{"date-parts":[[2023,3,24]],"date-time":"2023-03-24T02:34:54Z","timestamp":1679625294000},"page":"2460","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Repeated Measurements Are Necessary for Evaluating Accurate Diurnal Rhythm Using a Self-Intraocular Pressure Measurement Device"],"prefix":"10.3390","volume":"12","author":[{"given":"Yumi","family":"Shigemoto","sequence":"first","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuka","family":"Hasebe","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuyoshi","family":"Kitamura","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yoshiko","family":"Fukuda","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masako","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mio","family":"Matsubara","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shinya","family":"Minaguchi","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8506-8503","authenticated-orcid":false,"given":"Kenji","family":"Kashiwagi","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology, Faculty of Medicine, University of Yamanashi, Yamanashi 409-3898, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,23]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.preteyeres.2016.07.002","article-title":"24-h monitoring devices and nyctohemeral rhythms of intraocular pressure","volume":"55","author":"Aptel","year":"2016","journal-title":"Prog. Retin. Eye Res."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1136","DOI":"10.1016\/j.ajo.2004.12.012","article-title":"Single intraocular pressure measurements and diurnal intraocular pressure profiles","volume":"139","author":"Jonas","year":"2005","journal-title":"Am. J. Ophthalmol."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"793","DOI":"10.1001\/archopht.124.6.793","article-title":"Clinical utility of intraocular pressure monitoring outside of normal office hours in patients with glaucoma","volume":"124","author":"Barkana","year":"2006","journal-title":"Arch. Ophthalmol."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Song, Y.K., Lee, C.K., Kim, J., Hong, S., Kim, C.Y., and Seong, G.J. (2014). Instability of 24-hour intraocular pressure fluctuation in healthy young subjects: A prospective, cross-sectional study. BMC Ophthalmol., 14.","DOI":"10.1186\/1471-2415-14-127"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"788","DOI":"10.1111\/aos.13129","article-title":"Self-tonometry as a complement in the investigation of glaucoma patients","volume":"94","author":"Chen","year":"2016","journal-title":"Acta Ophthalmol."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"525","DOI":"10.1111\/aos.13389","article-title":"Monitoring daily intraocular pressure fluctuations with self-tonometry in healthy subjects","volume":"95","author":"Chen","year":"2017","journal-title":"Acta Ophthalmol."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.ophtha.2010.04.027","article-title":"Short-term repeatability of diurnal intraocular pressure patterns in glaucomatous individuals","volume":"118","author":"Realini","year":"2011","journal-title":"Ophthalmology"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1111\/aos.12108","article-title":"Assessment of IcareONE rebound tonometer for self-measuring intraocular pressure","volume":"92","author":"Sakamoto","year":"2014","journal-title":"Acta Ophthalmol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1675","DOI":"10.1016\/j.ophtha.2016.04.044","article-title":"The Icare HOME (TA022) Study: Performance of an Intraocular Pressure Measuring Device for Self-Tonometry by Glaucoma Patients","volume":"123","author":"Mudie","year":"2016","journal-title":"Ophthalmology"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1245","DOI":"10.2147\/OPTH.S163092","article-title":"Icare\u00ae rebound tonometers: Review of their characteristics and ease of use","volume":"12","author":"Nakakura","year":"2018","journal-title":"Clin. Ophthalmol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"4031","DOI":"10.2147\/OPTH.S284844","article-title":"Icare Home Tonometer: A Review of Characteristics and Clinical Utility","volume":"14","author":"Liu","year":"2020","journal-title":"Clin. Ophthalmol."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1097\/OPX.0000000000001172","article-title":"Diurnal Intraocular Pressure Fluctuations with Self-tonometry in Glaucoma Patients and Suspects: A Clinical Trial","volume":"95","author":"Huang","year":"2018","journal-title":"Optom. Vis.Sci. Off. Publ. Am. Acad. Optom."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Schweier, C., Hanson, J.V., Funk, J., and T\u00f6teberg-Harms, M. (2013). Repeatability of intraocular pressure measurements with Icare PRO rebound, Tono-Pen AVIA, and Goldmann tonometers in sitting and reclining positions. 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Ophthalmol."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"132","DOI":"10.3341\/kjo.2017.31.2.132","article-title":"Long-term Reliability of Diurnal Intraocular Pressure Patterns in Healthy Asians","volume":"31","author":"Chun","year":"2017","journal-title":"Korean J. Ophthalmol."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"322","DOI":"10.1111\/j.1755-3768.2010.01987.x","article-title":"Precision and accuracy of the ICare tonometer-Peripheral and central IOP measurements by rebound tonometry","volume":"90","author":"Muttuvelu","year":"2010","journal-title":"Acta Ophthalmol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1113","DOI":"10.2147\/OPTH.S23143","article-title":"Central and peripheral intraocular pressure measured by a rebound tonometer","volume":"5","author":"Miki","year":"2011","journal-title":"Clin. Ophthalmol."}],"container-title":["Journal of Clinical Medicine"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2077-0383\/12\/7\/2460\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T19:01:36Z","timestamp":1760122896000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2077-0383\/12\/7\/2460"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,3,23]]},"references-count":19,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2023,4]]}},"alternative-id":["jcm12072460"],"URL":"https:\/\/doi.org\/10.3390\/jcm12072460","relation":{},"ISSN":["2077-0383"],"issn-type":[{"type":"electronic","value":"2077-0383"}],"subject":[],"published":{"date-parts":[[2023,3,23]]}}}