{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T20:26:51Z","timestamp":1777580811781,"version":"3.51.4"},"reference-count":36,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T00:00:00Z","timestamp":1521676800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["European Journal of Ophthalmology"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>\n                      To evaluate surgically induced astigmatism as computed by means of either simulated keratometry (K\n                      <jats:sub>SIM<\/jats:sub>\n                      ) or total corneal refractive power (TCRP) after temporal incisions.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>\n                      Prospective observational study including 36 right eyes undergoing cataract surgery. Astigmatism was measured preoperatively during the 3-month follow-up period using Pentacam. Surgically induced astigmatism was computed considering anterior corneal surface astigmatism at 3\u2009mm with K\n                      <jats:sub>SIM<\/jats:sub>\n                      and considering both corneal surfaces with TCRP from 1 to 8\u2009mm (TCRP\n                      <jats:sub>3<\/jats:sub>\n                      for 3\u2009mm). The eyes under study were divided into two balanced groups: LOW with K\n                      <jats:sub>SIM<\/jats:sub>\n                      astigmatism &lt;0.90\u2009D and HIGH with K\n                      <jats:sub>SIM<\/jats:sub>\n                      astigmatism \u22650.90\u2009D. Resulting surgically induced astigmatism values were compared across groups and measuring techniques by means of flattening, steepening, and torque analysis.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      Mean surgically induced astigmatism was higher in the HIGH group (0.31\u2009D @ 102\u00b0) than in the LOW group (0.04 D @ 16\u00b0). The temporal incision resulted in a steepening in the HIGH group of 0.15 D @ 90\u00b0, as estimated with K\n                      <jats:sub>SIM<\/jats:sub>\n                      , versus 0.28 D @ 90\u00b0 with TCRP\n                      <jats:sub>3<\/jats:sub>\n                      , but no significant differences were found for the steepening in the LOW group or for the torque in either group. Differences between K\n                      <jats:sub>SIM<\/jats:sub>\n                      - and TCRP\n                      <jats:sub>3<\/jats:sub>\n                      -based surgically induced astigmatism values were negligible in LOW group.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>\n                      Surgically induced astigmatism was considerably higher in the high-astigmatism group and its value was underestimated with the K\n                      <jats:sub>SIM<\/jats:sub>\n                      approach. Eyes having low astigmatism should not be included for computing the surgically induced astigmatism because steepening would be underestimated.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1120672118757666","type":"journal-article","created":{"date-parts":[[2018,3,22]],"date-time":"2018-03-22T06:57:28Z","timestamp":1521701848000},"page":"573-581","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Comparing surgically induced astigmatism calculated by means of simulated keratometry versus total corneal refractive power"],"prefix":"10.1177","volume":"28","author":[{"given":"Nuria","family":"Garz\u00f3n","sequence":"first","affiliation":[{"name":"Innova Ocular IOA Madrid, Madrid, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manuel","family":"Rodr\u00edguez-Vallejo","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology 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