{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T04:44:35Z","timestamp":1789015475263,"version":"build-2803163510"},"reference-count":30,"publisher":"SLACK, Inc.","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Refract Surg"],"published-print":{"date-parts":[[2017,1]]},"abstract":"<jats:sec>\n            <jats:title>PURPOSE:<\/jats:title>\n            <jats:p>To evaluate 12-month changes in refraction, visual outcome, corneal densitometry, and postoperative aberrations after small incision lenticule extraction (SMILE) for myopic astigmatism.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>METHODS:<\/jats:title>\n            <jats:p>This 12-month prospective clinical trial comprised 101 eyes (101 patients) treated with SMILE for myopic astigmatism with cylinder of 0.75 to 4.00 diopters (D). The preoperative, 1-week, and 1-, 3-, 6-, 9-, and 12-month examinations included measurement of manifest refraction, uncorrected distance visual acuity (UDVA), and corrected (CDVA) distance visual acuity. Astigmatic error vector analysis was performed using Al-pin's method. Densitometry and aberrations were evaluated with Pentacam HR (Oculus Optikger\u00e4te, Wetzlar, Germany).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>RESULTS:<\/jats:title>\n            <jats:p>\n              Preoperative spherical equivalent averaged \u22126.78 \u00b1 1.90 D with 1.81 \u00b1 1.00 D in cylinder correction. After 12 months, 74% and 93% of the eyes were within \u00b10.50 and \u00b11.00 D of the attempted refraction, respectively. The logMAR UDVA and CDVA averaged 0.03 \u00b1 0.16 and \u22120.08 \u00b1 0.09, respectively. Vector analysis showed a with-the-rule undercorrection at 12 months with a mean difference vector of 0.31 D @ 91\u00b0. There was a minor counterclockwise rotation of the axis, with an arithmetic angle of error of 0.34\u00b0 \u00b1 14\u00b0. An undercorrection of approximately 11% per diopter of attempted correction was seen at 12 months. Spherical aberrations, coma, and higher order aberrations remained stable during the postoperative period (\n              <jats:italic>P<\/jats:italic>\n              &lt; .09). After 12 months, no increase in densitometry could be identified.\n            <\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>CONCLUSIONS:<\/jats:title>\n            <jats:p>Treatment of astigmatism with SMILE seems to be predictable and effective, but with an astigmatic undercorrection of approximately 11% and a small counterclockwise rotation of the axis.<\/jats:p>\n            <jats:p>\n              <jats:bold>\n                [\n                <jats:italic>J Refract Surg.<\/jats:italic>\n                2017;33(1):11\u201317.]\n              <\/jats:bold>\n            <\/jats:p>\n          <\/jats:sec>","DOI":"10.3928\/1081597x-20161006-04","type":"journal-article","created":{"date-parts":[[2017,1,9]],"date-time":"2017-01-09T20:10:14Z","timestamp":1483992614000},"page":"11-17","source":"Crossref","is-referenced-by-count":81,"title":["Changes in Astigmatism, Densitometry, and Aberrations After SMILE for Low to High Myopic Astigmatism: A 12-Month Prospective Study"],"prefix":"10.3928","volume":"33","author":[{"given":"Iben Bach","family":"Pedersen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anders","family":"Ivarsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jesper","family":"Hjortdal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2308","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjo.2009.174284"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2010.07.033"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20141113-07"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2013.11.006"},{"key":"e_1_3_3_6_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20140814-02"},{"key":"e_1_3_3_7_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2415-14-117"},{"key":"e_1_3_3_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2012.07.021"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00417-015-3226-5"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajo.2013.08.011"},{"key":"e_1_3_3_11_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20150923-11"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ophtha.2014.10.004"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0077797"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00417-013-2400-x"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2415-15-8"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20140320-02"},{"key":"e_1_3_3_17_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20121115-01"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0886-3350(13)80617-7"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20140903-01"},{"key":"e_1_3_3_20_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20141113-07"},{"key":"e_1_3_3_21_2","doi-asserted-by":"publisher","DOI":"10.1097\/ICU.0b013e3283543c41"},{"key":"e_1_3_3_22_2","doi-asserted-by":"publisher","DOI":"10.1136\/bjophthalmol-2015-307238"},{"key":"e_1_3_3_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2012.08.054"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-319-18530-9_15"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2003.08.022"},{"key":"e_1_3_3_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9394(01)01401-5"},{"key":"e_1_3_3_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2013.04.044"},{"key":"e_1_3_3_28_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20140320-03"},{"key":"e_1_3_3_29_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20160310-01"},{"key":"e_1_3_3_30_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20151021-01"},{"key":"e_1_3_3_31_2","first-page":"55","article-title":"Normative values for corneal densitometry analysis by Scheimpflug optical assessment","volume":"7","author":"N\u00ed Dhubhghaill S","year":"2014","unstructured":"N\u00ed Dhubhghaill S, Rozema JJ, Jongenelen S, Ruiz Hildalgo I, Zakaria N, Tassignon MJ. 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