{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T15:55:43Z","timestamp":1791561343664,"version":"4.3.4"},"reference-count":38,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T00:00:00Z","timestamp":1772841600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,3,7]],"date-time":"2026-03-07T00:00:00Z","timestamp":1772841600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Ophthalmologica"],"published-print":{"date-parts":[[2026,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate the accuracy of intraocular lens (IOL) power calculation formulas in aphakic eyes undergoing simultaneous silicone oil removal (SOR) and IOL implantation, including in\u2010the\u2010bag implantation and ciliary sulcus implantation, and assess the effect of \u2018Rule of 9s\u2019 adjustment for ciliary sulcus implantation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The performance of six formulas (BUII, EVO, LSF, Hoffer Q, Holladay 1, SRK\/T) was evaluated. Outcomes were assessed using mean prediction error (ME) for trueness, standard deviation (SD) for precision, and median absolute error (MedAE) for accuracy. Ciliary sulcus implantation was analysed with and without the \u2018Rule of 9s\u2019 adjustment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      This study included 282 eyes (143 in\u2010the\u2010bag, 139 sulcus). For in\u2010the\u2010bag implantation, new\u2010generation formulas (EVO, LSF, BUII) demonstrated higher precision (SD: 0.58 D) and accuracy (MedAE: 0.46\u20130.47 D) compared to traditional formulas (SD: 0.62\u20130.71 D; MedAE: 0.50\u20130.62 D;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05). Unadjusted sulcus implantation showed low trueness with a significant myopic shift (ME: \u22120.88 D to \u22121.12 D). The \u2018Rule of 9s\u2019 adjustment significantly improved trueness (ME: \u22120.32 D to \u22120.54 D). Post\u2010adjustment, EVO achieved the best accuracy (MedAE: 0.53 D), significantly better than traditional formulas.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>New\u2010generation formulas provide improved precision and accuracy in combined SOR\u2010IOL surgery. The \u2018Rule of 9s\u2019 adjustment optimized trueness for sulcus\u2010placed IOLs, where new\u2010generation formulas maintained higher accuracy and precision.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/aos.70116","type":"journal-article","created":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T15:07:13Z","timestamp":1772982433000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Accuracy of intraocular lens calculation formulas in aphakic eyes undergoing simultaneous silicone oil removal and intraocular lens implantation"],"prefix":"10.1111","volume":"104","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-4071-9314","authenticated-orcid":false,"given":"Guodong","family":"Xie","sequence":"first","affiliation":[{"name":"Joint Shantou International Eye Center of Shantou University The Chinese University of Hong Kong  Shantou Guangdong People's Republic of 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