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We retrospectively reviewed 279 patients who underwent phacoemulsification. Patients underwent ocular biometry twice (1\u20134\u00a0weeks before and on the day of surgery). Patients were divided into three groups: group S (similar inter-ocular biometry in different measurements; n\u2009=\u2009201), group P (inter-ocular differences persisted in the second measurement; n\u2009=\u200937), and group D (inter-ocular difference diminished in the second measurement; n\u2009=\u200941). Postoperative refractive outcomes (mean absolute errors [MAEs]) were compared among the groups. Postoperative MAE2, based on second measurement with reduced inter-ocular biometry difference, was smaller than that calculated using the first measurement (MAE1) with borderline significance in group D (MAE1, 0.49\u2009\u00b1\u20090.45\u00a0diopters vs. MAE2, 0.41\u2009\u00b1\u20090.33 diopters, <jats:italic>p<\/jats:italic>\u2009=\u20090.062). Postoperative MAE2 was greater in group P compared to the other two groups (<jats:italic>p<\/jats:italic>\u2009=\u20090.034). Large inter-ocular biometry differences were associated with poor refractive outcomes after cataract surgery. These results indicate that measurements with smaller inter-ocular differences were associated with better refractive outcomes in cases with inter-visit biometry differences.<\/jats:p>","DOI":"10.1038\/s41598-020-71545-2","type":"journal-article","created":{"date-parts":[[2020,9,7]],"date-time":"2020-09-07T10:02:52Z","timestamp":1599472972000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Inter-ocular and inter-visit differences in ocular biometry and refractive outcomes after cataract surgery"],"prefix":"10.1038","volume":"10","author":[{"given":"Hyun Sup","family":"Choi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyo Soon","family":"Yoo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yerim","family":"An","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sam Young","family":"Yoon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sung Pyo","family":"Park","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong-Kyu","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,9,7]]},"reference":[{"key":"71545_CR1","first-page":"58","volume":"113","author":"G Davis","year":"2016","unstructured":"Davis, G. 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