{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,21]],"date-time":"2026-10-21T22:55:37Z","timestamp":1792623337652,"version":"4.5.0"},"reference-count":16,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"7","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2021,7]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To assess the repeatability of ocular measurements, particularly astigmatism, taken using the latest version of an swept-source optical coherence tomography (SS-OCT) device, IOLMaster 700.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>This prospective observational study done in a private eye care centre. Study included 213 eyes of 152 patients diagnosed with cataract. Axial length (AL), Anterior corneal astigmatism (\u0394K), Total corneal astigmatism (\u0394TK), Aqueous depth (AD), Lens thickness (LT), Iris barycentre distance (IBD) and White to white distance (WTW) were analysed; three measurements were taken for each patient in the same sitting by the same examiner in an undilated state using the SS-OCT device. Repeatability was analysed using intraclass coefficient (ICC) and coefficient of variation (CV) measures, and astigmatism values were transformed into vector components (J0\/J45) and categorised based on magnitude.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Astigmatism vector components (J0\/J45) showed poor repeatability (ICC &lt; 0.5 and CV &gt; 0), while iris coordinates (IBD) and astigmatism magnitude had good correlation (ICC &gt; 0.9) but more variations between the readings which was least for magnitude \u2265 1.5D; however, rest of the parameters demonstrated excellent repeatability (ICC &gt; 0.9 with\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      value &lt; 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>IOLMaster 700 demonstrated good reliability for the parameters measured, although, for astigmatism and iris barycentre distance, more number of readings and cross reference with other devices may be required to get clinically accurate results.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/ijo.ijo_2776_20","type":"journal-article","created":{"date-parts":[[2021,6,25]],"date-time":"2021-06-25T14:43:02Z","timestamp":1624632182000},"page":"1760-1765","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":12,"title":["Assessment of precision of astigmatism measurements taken by a swept-source optical coherence tomography biometer - IOLMaster 700"],"prefix":"10.4103","volume":"69","author":[{"given":"Ajay","family":"Sharma","sequence":"first","affiliation":[{"name":"Department of Cataract and Refractive, Amber Eye Care and Micro Surgery Centre, Thane, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Akanksha","family":"Batra","sequence":"additional","affiliation":[{"name":"Department of Cataract and Refractive, Amber Eye Care and Micro Surgery Centre, Thane, Maharashtra, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2021,6,18]]},"reference":[{"key":"R1-20260523","doi-asserted-by":"crossref","first-page":"2224","DOI":"10.1016\/j.jcrs.2015.03.019","article-title":"Clinical comparison of a new swept-source optical coherence tomography-based optical biometer and a time-domain optical coherence tomography-based optical biometer","volume":"41","author":"Srivannaboon","year":"2015","journal-title":"J Cataract Refract Surg"},{"key":"R2-20260523","doi-asserted-by":"crossref","first-page":"929","DOI":"10.1001\/archopht.126.7.929","article-title":"Comparison of predictions made by the intraocular lens master and ultrasound biometry","volume":"126","author":"Bhatt","year":"2008","journal-title":"Arch Ophthalmol"},{"key":"R3-20260523","doi-asserted-by":"crossref","first-page":"e0128929","DOI":"10.1371\/journal.pone.0128929","article-title":"Axial length measurement failure rates with the IOLMaster and Lenstar LS 900 in eyes with cataract","volume":"10","author":"McAlinden","year":"2015","journal-title":"PLoS One"},{"key":"R4-20260523","doi-asserted-by":"crossref","first-page":"2245","DOI":"10.2147\/OPTH.S182898","article-title":"Comparison of agreement and efficiency of a swept source-optical coherence tomography device and an optical low-coherence reflectometry device for biometry measurements during cataract evaluation","volume":"12","author":"Passi","year":"2018","journal-title":"Clin Ophthalmol"},{"key":"R5-20260523","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1016\/j.jcrs.2016.01.038","article-title":"Biometry with a new swept-source optical coherence tomography biometer:Repeatability 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devices","volume":"2017","author":"Kiraly","year":"2017","journal-title":"J Ophthalmol"},{"key":"R9-20260523","doi-asserted-by":"crossref","first-page":"983","DOI":"10.1038\/s41598-020-79674-4","article-title":"Repeatability of automated measurements by a new anterior segment optical coherence tomographer and biometer and agreement with standard devices","volume":"11","author":"Schiano-Lomoriello","year":"2021","journal-title":"Sci Rep"},{"key":"R10-20260523","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1016\/j.jcrs.2018.12.018","article-title":"Ocular measurements of a swept-source biometer:Repeatability data and comparison with an optical low-coherence interferometry biometer","volume":"45","author":"Nemeth","year":"2019","journal-title":"J Cataract Refract Surg"},{"key":"R11-20260523","doi-asserted-by":"crossref","first-page":"425","DOI":"10.1016\/j.jcrs.2009.09.034","article-title":"Repeatability of corneal power and wavefront aberration measurements with a dual-Scheimpflug Placido corneal topographer","volume":"36","author":"Wang","year":"2010","journal-title":"J Cataract Refract Surg"},{"key":"R12-20260523","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1111\/j.1444-0938.2008.00336.x","article-title":"Reliability and repeatability of the Pentacam on corneal curvatures","volume":"92","author":"Chen","year":"2009","journal-title":"Clin Exp Optom"},{"key":"R14-20260523","doi-asserted-by":"crossref","first-page":"372","DOI":"10.1097\/j.jcrs.0000000000000066","article-title":"Angle alpha orientation and magnitude distribution in a cataract surgery population","volume":"46","author":"Mahr","year":"2020","journal-title":"J Cataract Refract Surg"},{"key":"R15-20260523","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1007\/s00417-016-3555-z","article-title":"Evaluation of the repeatability of a swept-source ocular biometer for measuring ocular biometric parameters","volume":"255","author":"Ferrer-Blasco","year":"2017","journal-title":"Graefes Arch Clin Exp Ophthalmol"},{"issue":"3","key":"R16-20260523","first-page":"78","article-title":"Repeatability of the new swept source optical biometer IOLMaster\u00ae700 measurements","volume":"7","author":"Totuk","year":"2017","journal-title":"EC Ophthalmol?"},{"key":"R17-20260523","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1186\/s12886-016-0328-8","article-title":"Age-related differences in ocular biometry in adult Korean population","volume":"16","author":"Kim","year":"2016","journal-title":"BMC Ophthalmol"}],"container-title":["Indian Journal of 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