{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T13:29:35Z","timestamp":1786368575258,"version":"build-2736575974"},"reference-count":23,"publisher":"SLACK, Inc.","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Refract Surg"],"published-print":{"date-parts":[[2026,8,1]]},"abstract":"\n Purpose:<\/jats:title>\n To evaluate the clinical influence patterns of pre-operative chord mu and chord alpha on optical quality after Implantable Collamer Lens (ICL) (Visian; STAAR Surgical) implantation, thereby providing evidence-based guidance for surgical planning.<\/jats:p>\n <\/jats:sec>\n \n Methods:<\/jats:title>\n This study included 92 patients (181 eyes) who underwent ICL implantation. The OPD-Scan III system (Nidek) was employed for the preoperative assessment of both chord mu and chord alpha. Changes in higher order aberrations were analyzed 3 months postoperatively. Postoperative optical aberration patterns were assessed for their dependence on preoperative chord mu and chord alpha measurements.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n \n The mean value of chord mu was 0.25 \u00b1 0.13 mm, and the median chord alpha was 0.22 mm (interquartile range: 0.19 mm). Chord mu exhibited a relatively dispersed distribution, whereas chord alpha was primarily distributed along the horizontal axis. Notably, 1\/chord alpha exhibited a significant linear positive correlation with axial length (\n R<\/jats:italic>\n \n 2<\/jats:italic>\n <\/jats:sup>\n = 0.1739,\n P<\/jats:italic>\n < .001), reflecting the non-linear decay of chord alpha with axial elongation. The relationship was characterized by a generalized estimating equation using Gamma distribution and inverse link function. At 3 months postoperatively, analysis revealed statistically significant elevation in vertical coma and oblique trefoil (\n P<\/jats:italic>\n < .05), whereas other optical parameters including total higher order aberrations, primary coma, trefoil, spherical aberration, and horizontal coma remained stable (\n P<\/jats:italic>\n > .05). Correlation analysis revealed no significant association between changes in higher order aberrations and preoperative chord mu or chord alpha (\n P<\/jats:italic>\n > .05).\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions:<\/jats:title>\n Neither preoperative chord mu nor chord alpha significantly affects higher order aberrations after ICL implantation, suggesting that the procedure has a relatively high tolerance regarding chord mu and chord alpha selection.<\/jats:p>\n <\/jats:sec>","DOI":"10.3928\/1081597x-20260422-01","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T12:43:47Z","timestamp":1786365827000},"source":"Crossref","is-referenced-by-count":0,"title":["Assessment of Chord Mu and Chord Alpha in Relation to Post-ICL Implantation Visual Quality"],"prefix":"10.3928","volume":"42","author":[{"given":"Zhuotong","family":"Wu","sequence":"first","affiliation":[{"name":"Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China;"},{"name":"NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China"},{"name":"Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyi","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China;"},{"name":"NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China"},{"name":"Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongjun","family":"Tang","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China;"},{"name":"NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China"},{"name":"Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linda","family":"Zheng","sequence":"additional","affiliation":[{"name":"Sydney Eye Hospital, Sydney, Australia;"},{"name":"Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingtao","family":"Zhou","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China;"},{"name":"NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China"},{"name":"Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China;"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shengtao","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China;"},{"name":"NHC Key Laboratory of Myopia (Fudan University), Chinese Academy of Medical Sciences, Shanghai, China"},{"name":"Shanghai Research Center of Ophthalmology and Optometry, Shanghai, China;"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2308","reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S2214-109X(20)30489-7"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.2147\/OPTH.S379856"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12886-023-03050-9"},{"key":"e_1_3_1_5_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12886-023-03045-6"},{"key":"e_1_3_1_6_2","doi-asserted-by":"publisher","DOI":"10.18240\/ijo.2017.02.10"},{"key":"e_1_3_1_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/eye.2011.150"},{"key":"e_1_3_1_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2019.04.003"},{"key":"e_1_3_1_9_2","doi-asserted-by":"publisher","DOI":"10.3390\/jcm11030896"},{"key":"e_1_3_1_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2017.05.028"},{"key":"e_1_3_1_11_2","doi-asserted-by":"publisher","DOI":"10.1097\/j.jcrs.0000000000000063"},{"key":"e_1_3_1_12_2","doi-asserted-by":"publisher","DOI":"10.1097\/j.jcrs.0000000000000490"},{"key":"e_1_3_1_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajo.2021.06.032"},{"key":"e_1_3_1_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00417-024-06596-6"},{"key":"e_1_3_1_15_2","doi-asserted-by":"publisher","DOI":"10.18240\/ijo.2025.06.08"},{"key":"e_1_3_1_16_2","doi-asserted-by":"publisher","DOI":"10.1097\/j.jcrs.0000000000001135"},{"key":"e_1_3_1_17_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081-597X-20070501-06"},{"key":"e_1_3_1_18_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20250506-04"},{"key":"e_1_3_1_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/j.jcrs.0000000000000156"},{"key":"e_1_3_1_20_2","doi-asserted-by":"publisher","DOI":"10.3928\/1081597X-20231101-01"},{"key":"e_1_3_1_21_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-024-77699-7"},{"key":"e_1_3_1_22_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12886-022-02499-4"},{"key":"e_1_3_1_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcrs.2019.06.022"},{"key":"e_1_3_1_24_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajo.2023.11.008"}],"container-title":["Journal of Refractive Surgery"],"original-title":[],"language":"en","deposited":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T12:43:57Z","timestamp":1786365837000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.healio.com\/doi\/10.3928\/1081597X-20260422-01"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,1]]},"references-count":23,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2026,8,1]]}},"alternative-id":["10.3928\/1081597X-20260422-01"],"URL":"https:\/\/doi.org\/10.3928\/1081597x-20260422-01","relation":{},"ISSN":["1081-597X"],"issn-type":[{"value":"1081-597X","type":"print"}],"subject":[],"published":{"date-parts":[[2026,8,1]]}}}