{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T12:34:53Z","timestamp":1762432493237,"version":"3.28.0"},"reference-count":0,"publisher":"Press of International Journal of Ophthalmology (IJO Press)","issue":"11","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J Ophthalmol"],"published-print":{"date-parts":[[2024,11,18]]},"abstract":"<jats:p>AIM: To evaluate the clinical outcomes after subsequent implantation of a new intrastromal corneal ring segment (ICRS) model followed by an additional short-arc ICRS implant in keratoconus patients.\nMETHODS: This retrospective single-arm cohort study evaluated 25 eyes of 21 keratoconus patients implanted with the new ICRS followed by 140-arch length ICRS (140-ICRS) implantation. Uncorrected distance visual acuity (UDVA, logMAR), corrected distance visual acuity (CDVA, logMAR), sphere, astigmatism, keratometry, spherical equivalent (SE), and asphericity were compared preoperatively and postoperatively after both ICRS implantation.\nRESULTS: The average follow-up time after 140-ICRS implantation was 6.40\u00b12.20mo. The mean preoperative UDVA improved from 1.27\u00b10.14 preoperative to 0.52\u00b10.26 after both ICRS implantation (P=0.03). The mean sphere value reduced from -5.34\u00b12.74 preoperatively to -2.06\u00b11.84 postoperatively (P&amp;#x003C;0.001) after the first ICRS implantation and decreased to -0.59\u00b11.54 postoperatively (P&amp;#x003C;0.001) after 140-ICRS implantation. The mean preoperative astigmatism was -3.72\u00b11.56 and improved to -2.82\u00b11.08 after the first ICRS implantation, and following the 140-ICRS implantation, the mean astigmatism was -1.37\u00b10.67 (P=0.001). The SE and asphericity changes were statistically significant (P&amp;#x003C;0.001). The researchers did not find intraoperative or postoperative complications for both procedures.\nCONCLUSION: The combination of 2 different ICRSs can efficiently regularize the cornea, reduce the SE, and improve visual acuity in selected keratoconus patients.<\/jats:p>","DOI":"10.18240\/ijo.2024.11.07","type":"journal-article","created":{"date-parts":[[2024,10,23]],"date-time":"2024-10-23T02:53:06Z","timestamp":1729651986000},"page":"2023-2030","source":"Crossref","is-referenced-by-count":1,"title":["Double intrastromal corneal ring segment implantation: a new approach for improved clinical outcomes in keratoconus patients"],"prefix":"10.18240","volume":"17","author":[{"name":"Ennio Coscarelli Eye Clinic, Belo Horizonte 30140-001, Brazil","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sandro","family":"Coscarelli","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Victoria Moreira","family":"Fernandes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Medical Sciences of Minas Gerais Eye Institute, Belo Horizonte 30260-080, Brazil; Faculty of Medical Sciences of Minas Gerais, Belo Horizonte 30260-080, Brazil","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sandro P.","family":"Coscarelli","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Ennio Coscarelli Eye Clinic, Belo Horizonte 30140-001, Brazil","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Leonardo","family":"Torquetti","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Center of Excellence in Ophthalmology, Par&#xE1; de Minas 35660-017, Brazil","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"7543","container-title":["International Journal of Ophthalmology"],"original-title":[],"link":[{"URL":"http:\/\/ies.ijo.cn\/en_publish\/2024\/11\/20241107.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,10,23]],"date-time":"2024-10-23T02:53:12Z","timestamp":1729651992000},"score":1,"resource":{"primary":{"URL":"http:\/\/ies.ijo.cn\/gjyken\/ch\/reader\/view_abstract.aspx?file_no=20241107&flag=1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,11,18]]},"references-count":0,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2024,11,18]]}},"URL":"https:\/\/doi.org\/10.18240\/ijo.2024.11.07","relation":{},"ISSN":["2222-3959","2227-4898"],"issn-type":[{"value":"2222-3959","type":"print"},{"value":"2227-4898","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,11,18]]}}}