{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,31]],"date-time":"2026-10-31T08:51:01Z","timestamp":1793436661781,"version":"4.5.0"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"11","license":[{"start":{"date-parts":[[2023,7,22]],"date-time":"2023-07-22T00:00:00Z","timestamp":1689984000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2023,7,22]],"date-time":"2023-07-22T00:00:00Z","timestamp":1689984000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Int Ophthalmol"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Dysfunctional lens index (DLI) changing is rarely reported after implantable collamer lens (ICL) implantation. In the current research, we hope to investigate the changes of DLI by ray-tracing aberrometry before and after implantation of the posterior chamber phakic implantable collamer lens with a central artificial hole for patients with moderate-to-high myopia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective, observational case series included 206 eyes of 104 patients with moderate-to-high myopia who underwent ICL V4c implantation. Data were collected on ocular indicators preoperatively and at 1\u00a0day, 1, 3, and 6\u00a0months postoperatively. The i-Trace Visual Functional Analyzer was used to assess the DLI measurement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The overall values of safety index and efficacy index were both more than 1. Preoperatively, the mean spherical equivalent (SE) of included 206 eyes was \u2212\u200910.77\u2009\u00b1\u20093.46 diopter (D). Then at 1-day postoperation, the mean SE was \u2212\u20090.22\u2009\u00b1\u20090.55\u00a0D, and barely changed from 1\u00a0day to 6\u00a0months postoperatively. Although the endothelial parameters had no significant differences between preoperation and postoperation, the mean loss of endothelial cells was 0.74\u2009\u00b1\u20090.98% at 6\u00a0months. Regarding the vault, there was a significant difference between each time of follow-up (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001). The mean of the vault decreased 109.6\u2009\u00b1\u200913.5\u00a0\u00b5m from 1-day post-op to 6\u00a0months post-op. The DLI values were 3.70, 9.26, 10.00, and 9.68 at baseline, 1, 3, and 6\u00a0months, respectively (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001), but no significant differences were found between 1, 3, and 6\u00a0months postoperatively (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&gt;\u20090.05). The preoperative lnDLI showed a significant positive linear correlation (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009=\u20090.621,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001) with the preoperative spherical equivalent (SE). The lnDLI was negatively correlated with the axial length (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009=\u2009\u2212\u20090.462,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001), corneal thickness (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009=\u2009\u2212\u20090.207,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.003), preoperative LogMAR UDVA (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009=\u2009\u2212\u20090.189,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.006), and preoperative LogMAR CDVA (\n                      <jats:italic>r<\/jats:italic>\n                      \u2009=\u2009\u2212\u20090.306,\n                      <jats:italic>P<\/jats:italic>\n                      \u2009&lt;\u20090.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The postoperative refractive parameters were confirmed excellent in efficacy, predictability, and stability in half a year. The DLI was significantly improved after the ICL V4c implantation in patients with moderate-to-high myopia and showed good stability during the follow-up periods. The DLI deserves a more comprehensive understanding and application in clinical services.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10792-023-02812-0","type":"journal-article","created":{"date-parts":[[2023,7,22]],"date-time":"2023-07-22T11:01:18Z","timestamp":1690023678000},"page":"4111-4120","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Changes of dysfunctional lens index before and after implantable collamer lens V4c implantation in patients with moderate-to-high myopia"],"prefix":"10.1007","volume":"43","author":[{"given":"Weifang","family":"Cao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suhua","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qian","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jing","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyong","family":"Yuan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2023,7,22]]},"reference":[{"key":"2812_CR1","doi-asserted-by":"publisher","first-page":"1036","DOI":"10.1016\/j.ophtha.2016.01.006","volume":"123","author":"BA Holden","year":"2016","unstructured":"Holden BA, Fricke TR, Wilson DA, Jong M, Naidoo KS, Sankaridurg P, Wong TY, Naduvilath TJ, Resnikoff S (2016) Global prevalence of myopia and high myopia and temporal trends from 2000 through 2050. 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All patients were willing to attend this research and signed a written informed consent.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}}]}}