{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T12:36:05Z","timestamp":1789475765902,"version":"build-2803163510"},"reference-count":39,"publisher":"Wiley","license":[{"start":{"date-parts":[[2014,1,1]],"date-time":"2014-01-01T00:00:00Z","timestamp":1388534400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"name":"Key Projects of the Bureau of Health, Tianjin","award":["2012KR17"],"award-info":[{"award-number":["2012KR17"]}]},{"name":"Key Projects of the Bureau of Health, Tianjin","award":["10KG108"],"award-info":[{"award-number":["10KG108"]}]},{"name":"Key Projects of the Bureau of Health, Tianjin","award":["2012KR17"],"award-info":[{"award-number":["2012KR17"]}]},{"name":"Key Projects of the Bureau of Health, Tianjin","award":["10KG108"],"award-info":[{"award-number":["10KG108"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Ophthalmology"],"published-print":{"date-parts":[[2014]]},"abstract":"<jats:p><jats:italic>Purpose<\/jats:italic>. To analyze the prevalence and presentation patterns of corneal astigmatism in cataract surgery candidates in a teaching hospital in northern China.<jats:italic>Methods<\/jats:italic>. From May 1, 2012, to April 30, 2013, partial coherence interferometry (IOLMaster) measurements of all qualified cataract surgery candidates were retrospectively collected and analyzed.<jats:italic>Results<\/jats:italic>. The study evaluated 12,449 eyes from 6,908 patients with a mean age of<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mrow><mml:mn>69.80<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn>11.15<\/mml:mn><\/mml:mrow><\/mml:math>(SD) years. The corneal astigmatism was 0.5 diopters (D) or less in 20.76% of eyes, 1.0\u2009D or more in 47.27% of eyes, 2.0\u2009D or more in 13.16% of eyes, and 3.0\u2009D or more in 3.75% of eyes. With-the-rule astigmatism was found in 30.36% of eyes, while against-the-rule was found in 52.41% of eyes. The percentage of against-the-rule astigmatism increased with age.<jats:italic>Conclusion<\/jats:italic>. Our study showed that almost one-half of preoperative eyes (47.27%) in northern China have a corneal astigmatism of 1.0\u2009D or more, indicating that more surgical techniques or toric IOLs are needed to achieve better visual rehabilitation.<\/jats:p>","DOI":"10.1155\/2014\/536412","type":"journal-article","created":{"date-parts":[[2014,6,3]],"date-time":"2014-06-03T21:06:07Z","timestamp":1401829567000},"page":"1-7","source":"Crossref","is-referenced-by-count":42,"title":["Prevalence of Corneal Astigmatism in Patients before Cataract Surgery in Northern China"],"prefix":"10.1155","volume":"2014","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0204-8361","authenticated-orcid":true,"given":"Xiaoyong","family":"Yuan","sequence":"first","affiliation":[{"name":"Tianjin Eye Hospital, Tianjin Key Laboratory of Ophthalmology and Vision Science, Clinical College of Ophthalmology, Tianjin Medical University, No. 4 Gansu Road, Heping District, Tianjin 300020, 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