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At one month postoperatively, standard deviation (SD) of the prediction errors (PEs), mean and median absolute error (MedAE) of 103 highly myopic eyes were back-calculated and compared among ten formulas, including XGboost, RBF 3.0, Kane, Barrett Universal II, Emmetropia Verifying Optical 2.0, Cooke K6, Haigis, SRK\/T, and Wang-Koch modifications of Haigis and SRK\/T formulas, using either TK or standard keratometry (K) value.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      In highly myopic eyes, despite good agreement between TK and K (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&gt;\u20090.05), larger differences between the two were associated with smaller central corneal thickness (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.05). As to the refractive errors, TK method showed no differences compared to K method. The XGBoost, RBF 3.0 and Kane ranked top three when considering SDs of PEs. Using TK value, the XGboost calculator was comparable with the RBF 3.0 formula (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&gt;\u20090.05), which both presented smaller MedAEs than others (all\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.05). As for the percentage of eyes within\u2009\u00b1\u20090.50 D or\u2009\u00b1\u20090.75 D of PE, the XGBoost TK showed comparable percentages with the RBF 3.0 TK formula (74.76% vs. 66.99%, or 90.29% vs. 87.38%,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&gt;\u20090.05), and statistically larger percentages than the other eight formulas (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Highly myopic eyes with thinner corneas tend to have larger differences between TK and K. The XGboost enhancement calculator and RBF 3.0 formula using TK showed the most promising outcomes in highly myopic eyes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s40662-022-00293-3","type":"journal-article","created":{"date-parts":[[2022,6,8]],"date-time":"2022-06-08T20:23:41Z","timestamp":1654719821000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Application of total keratometry in ten intraocular lens power calculation formulas in highly myopic eyes"],"prefix":"10.1186","volume":"9","author":[{"given":"Ling","family":"Wei","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaiwen","family":"Cheng","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenwen","family":"He","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5588-1667","authenticated-orcid":false,"given":"Xiangjia","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yi","family":"Lu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2022,6,9]]},"reference":[{"issue":"4","key":"293_CR1","doi-asserted-by":"publisher","first-page":"484","DOI":"10.1136\/bjophthalmol-2020-316193","volume":"105","author":"G Savini","year":"2021","unstructured":"Savini G, Di Maita M, Hoffer KJ, N\u00e6ser K, Schiano-Lomoriello D, Vagge A, et al. 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Signed informed consent was obtained from all participants, who were informed of the usage of their clinical data.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors have no proprietary or commercial interest in any materials discussed in this article.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"21"}}