{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T20:47:08Z","timestamp":1786740428607,"version":"build-2736575974"},"reference-count":0,"publisher":"GN1 Sistemas e Publicacoes Ltd.","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ABO"],"published-print":{"date-parts":[[2026]]},"abstract":"<jats:p>Purpose: To evaluate changes in scotopic pupil diameter before and after cataract surgery performed\nby phacoemulsification with intraocular lens implantation. Methods: This prospective longitudinal\nobservational study included patients who underwent cataract surgery. Scotopic pupil diameter was\nmeasured preoperatively and 30-40 days postoperatively using an automated keratometer after a\nstandardized dark-adaptation period under controlled ambient illumination. Each eye was considered\nan independent unit of observation. Because some participants contributed both eyes, intraindividual\ncorrelation was accounted for using a linear mixed-effects model with random patient intercepts.\nTime of assessment (preoperative versus postoperative), age, sex, and eye laterality were included as\nfixed effects. Results: A total of 354 eyes from 251 patients were analyzed. The mean patient age was\n69.3\u00b17.2 yr. Mean scotopic pupil diameter decreased from 5.3\u00b10.9mm preoperatively to 4.8\u00b10.8mm\npostoperatively, representing a mean reduction of 0.5mm (9.4%). In the linear mixed-effects model,\ncataract surgery was associated with a significant reduction in pupil diameter, with an adjusted\nmean difference of 0.45mm (95% confidence interval [95% CI], 0.39-0.51; p&lt;0.001). Age (p=0.061), sex\n(p=0.920), and eye laterality (p=0.152) were not significantly associated with the magnitude of pupil\ndiameter change. Conclusion: Phacoemulsification with intraocular lens implantation was associated\nwith a significant reduction in scotopic pupil diameter, independent of age, sex, and eye laterality. This\nfinding should be considered during preoperative planning, particularly when selecting intraocular\nlenses whose optical performance depends on postoperative pupil size.<\/jats:p>","DOI":"10.5935\/0004-2749.2026-0010","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T20:12:45Z","timestamp":1786738365000},"page":"1-5","source":"Crossref","is-referenced-by-count":0,"title":["Change in pupil diameter after phacoemulsification with intraocular lens implantation"],"prefix":"10.5935","volume":"89","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5013-8417","authenticated-orcid":false,"given":"Hugo Diehl de","family":"Souza","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-0913-9897","authenticated-orcid":false,"given":"Jos\u00e9 de Mello","family":"Rosatelli Neto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-9007-6362","authenticated-orcid":false,"given":"Sofia Cabral","family":"Saqueti","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7471-2620","authenticated-orcid":false,"given":"Maria Ant\u00f4nia Vicente","family":"Camargo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-0398-2591","authenticated-orcid":false,"given":"Ra\u00edssa Gomes","family":"Nunes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4262-7560","authenticated-orcid":false,"given":"Renan Nola","family":"Schmoeller","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8910-4735","authenticated-orcid":false,"given":"Jefferson Luiz Brum","family":"Marques","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3948","published-online":{"date-parts":[[2026]]},"container-title":["Arquivos Brasileiros de Oftalmologia"],"original-title":[],"link":[{"URL":"https:\/\/www.scielo.br\/j\/abo\/a\/xjZf5PcHZfvbPPGhwS545zp\/?lang=en&ilang=en","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T20:12:47Z","timestamp":1786738367000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.scielo.br\/j\/abo\/a\/xjZf5PcHZfvbPPGhwS545zp\/?lang=en&ilang=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026]]},"references-count":0,"journal-issue":{"issue":"4","published-online":{"date-parts":[[2026]]},"published-print":{"date-parts":[[2026]]}},"URL":"https:\/\/doi.org\/10.5935\/0004-2749.2026-0010","relation":{},"ISSN":["0004-2749"],"issn-type":[{"value":"0004-2749","type":"print"}],"subject":[],"published":{"date-parts":[[2026]]}}}