{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:01:30Z","timestamp":1792022490293,"version":"4.4.0"},"reference-count":35,"publisher":"Public Library of Science (PLoS)","issue":"10","license":[{"start":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T00:00:00Z","timestamp":1696377600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Purpose<\/jats:title>\n<jats:p>To observe changes in retinal refraction difference values (RDV) and aberrations after small incision lenticule extraction (SMILE) surgery and evaluate their correlations.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methods<\/jats:title>\n<jats:p>This study recruited 112 patients (112 eyes) who underwent SMILE for myopia. Participants were classified into the Low and Moderate Myopia group (LM, -0.50 to -6.0 D) and High Myopia group (HM, &gt;-6.0 D) according to the central spherical equivalent (SE). RDVs in the five retinal eccentricities from 0\u00b0 to 10\u00b0, 10\u00b0 to 20\u00b0, 20\u00b0 to 30\u00b0, 30\u00b0 to 40\u00b0, and 40\u00b0 to 53\u00b0 are recorded as RDV-(0\u201310), RDV-(10\u201320), RDV-(20\u201330), RDV-(30\u201340), and RDV-(40\u201353), respectively; additionally, RDVs have four sectors, i.e., RDV-Superior (RDV-S), RDV-Inferior (RDV-I), RDV-Temporal (RDV-T), and RDV-Nasal (RDV-N). With a 3-month follow-up, changes in RDV (\u0394RDV) and changes in aberrations [\u0394trefoil, \u0394coma, \u0394spherical aberration (SA), and \u0394total higher-order aberrations (HOA)] after surgery were recorded.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Results<\/jats:title>\n<jats:p>No significant differences were observed in total RDV (TRDV), RDV-(0\u201353), RDV-S, RDV-I, RDV-N, trefoil, coma, and SA between the two groups before SMILE surgery. However, after SMILE, hyperopic defocus values [TRDV, RDV-(20\u201353), RDV-S, RDV-T, and RDV-N] in the LM group and hyperopic defocus values [TRDV, RDV-(20\u201353), RDV-S, and RDV-N] in the HM group were significantly lower at 3 months postoperatively than preoperatively, and the RDV-(40\u201353), RDV-S, and RDV-N were lower in the HM group than in the LM group. Aberrations [trefoil (vertical), coma, and HOA] in the LM group and aberrations (trefoil, coma, SA, and HOA) in the HM group were significantly higher at 3 months postoperatively than preoperatively, and the coma, trefoil(horizontal), SA, and HOA were higher in the HM group than in the LM group. In the multivariate analysis, \u0394RDV-(40\u201353) was significantly correlated with \u0394SA, and \u0394RDV-T and \u0394RDV-N were significantly correlated with \u0394coma (horizontal).<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec004\">\n<jats:title>Conclusions<\/jats:title>\n<jats:p>Our findings suggest that SMILE reduces retinal peripheral hyperopic defocus but introduces some higher-order aberrations, especially in people with high myopia refractive errors.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0291681","type":"journal-article","created":{"date-parts":[[2023,10,4]],"date-time":"2023-10-04T17:33:05Z","timestamp":1696440785000},"page":"e0291681","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":8,"title":["Changes in relative peripheral refraction and optical quality in Chinese myopic patients after small incision lenticule extraction 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