{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T20:13:09Z","timestamp":1770840789398,"version":"3.50.1"},"reference-count":27,"publisher":"Springer Science and Business Media LLC","issue":"6","license":[{"start":{"date-parts":[[2012,10,11]],"date-time":"2012-10-11T00:00:00Z","timestamp":1349913600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ophthalmic Physiologic Optic"],"published-print":{"date-parts":[[2012,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>\n                      To compare and evaluate the agreement between keratometry readings using three devices: the\n                      <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                      entacam\n                      <jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>\n                      , the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z, and the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      In this prospective comparative study, 115 eyes from 115 healthy refractive surgery candidates were sequentially examined using three devices. Fourier analysis was used to evaluate corneal astigmatism in these subjects. The outcome measures comprised steep and flat keratometry readings, corneal astigmatism, the mean keratometry reading, and the J0 and J45 components. Repeated\u2010measures analysis of variance (\n                      <jats:sc>RM\u2010anova<\/jats:sc>\n                      ) and\n                      <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>\n                      land\u2013\n                      <jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>\n                      ltman plots with 95% limits of agreement were used to evaluate the difference between measurements.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The mean keratometry readings were 43.89\u00a0\u00b1\u00a01.51, 43.52\u00a0\u00b1\u00a01.48, and 43.79\u00a0\u00b1\u00a01.50\u00a0D using the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer, the Orbscan IIz, and the Pentacam HR, respectively (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0&lt;\u00a00.001;\n                      <jats:sc>RM\u2010anova<\/jats:sc>\n                      ). The mean keratometric astigmatism was 1.27\u00a0\u00b1\u00a00.87, 1.20\u00a0\u00b1\u00a00.86, and 1.21\u00a0\u00b1\u00a00.82\u00a0D using the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer, the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z, and the\n                      <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                      entacam\n                      <jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>\n                      , respectively (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.007;\n                      <jats:sc>RM\u2010anova<\/jats:sc>\n                      ). The J0 measurements were higher using the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer compared with the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z (\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.021;\n                      <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>\n                      onferroni test). The mean, steep, and flat keratometry data were in better agreement using the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer and the\n                      <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                      entacam\n                      <jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>\n                      . In general, the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z device measured lower values than either the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer or the\n                      <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                      entacam\n                      <jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>\n                      . However, the corneal astigmatism measurements and the J0 component showed the best agreement using the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer and the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      The\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer and the\n                      <jats:styled-content style=\"fixed-case\">P<\/jats:styled-content>\n                      entacam\n                      <jats:styled-content style=\"fixed-case\">HR<\/jats:styled-content>\n                      produced similar readings and can be used interchangeably to measure simulated keratometry values in young, healthy eyes. To measure corneal astigmatism, the\n                      <jats:styled-content style=\"fixed-case\">TMS<\/jats:styled-content>\n                      \u20104 topographer and the\n                      <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>\n                      rbscan\n                      <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content>\n                      z produced values that were similar and could be used interchangeably.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/j.1475-1313.2012.00942.x","type":"journal-article","created":{"date-parts":[[2012,10,11]],"date-time":"2012-10-11T11:31:48Z","timestamp":1349955108000},"page":"539-546","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Comparison of keratometry measurements using the\n                    <scp>P<\/scp>\n                    entacam\n                    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