{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T18:43:01Z","timestamp":1776883381308,"version":"3.51.2"},"reference-count":72,"publisher":"Springer Science and Business Media LLC","issue":"6","license":[{"start":{"date-parts":[[2023,7,7]],"date-time":"2023-07-07T00:00:00Z","timestamp":1688688000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ophthalmic Physiologic Optic"],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>This study analysed the impact of general purpose progressive addition lenses (GP\u2010PALs) and computer progressive addition lenses (PC\u2010PALs) on the activity of the trapezius muscle during computer operation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this randomised, single\u2010blinded, crossover study, surface electromyography (SEMG) signals were recorded bilaterally from the trapezius muscle during a 30\u2010min computer task performed wearing different presbyopic corrections. The amplitude probability distribution function and its percentiles, gap frequency, muscular rest time and sustained low\u2010level muscle activity periods were analysed in 32 subjects with artificially induced presbyopia. Subjectively perceived differences in vision and postural load between lenses were evaluated using a seven\u2010item questionnaire (non\u2010standardised, visual analogue scale ranged from 1 [bad] to 100 [good]).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Considering the SEMG data, no significant difference in the muscular activity of the trapezius muscle was observed when using GP\u2010PALs or PC\u2010PALs for computer operation. However, PC\u2010PALs showed statistically and clinically significantly higher results for subjectively perceived visual quality (78.4\u201331.3;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), spontaneous tolerance (79.2\u201331.3;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and field of view (75.9\u201323.5;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) compared with GP\u2010PALs.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Even though the electromyographic approach did not show a significant differentiation between the lenses, the subjective evaluation was clearly in favour of PC\u2010PALs. Eye care practitioners should always take an occupational history of presbyopes, ask about the workplace situation and consider the use of PC\u2010PALs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/opo.13196","type":"journal-article","created":{"date-parts":[[2023,7,7]],"date-time":"2023-07-07T05:51:49Z","timestamp":1688709109000},"page":"1391-1405","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Trapezius activity during personal computer work with progressive addition lenses for general purpose and for computer work in neophytes"],"prefix":"10.1007","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8004-8896","authenticated-orcid":false,"given":"Oliver","family":"Kolbe","sequence":"first","affiliation":[{"name":"Department of Optometry and Vision Sciences, Faculty of SciTec Ernst\u2010Abbe\u2010University of Applied Sciences Jena  Jena Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patrick","family":"Becker","sequence":"additional","affiliation":[{"name":"Department of Optometry and Vision Sciences, Faculty of SciTec Ernst\u2010Abbe\u2010University of Applied Sciences Jena  Jena Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephan","family":"Degle","sequence":"additional","affiliation":[{"name":"Department of Optometry and Vision Sciences, Faculty of SciTec Ernst\u2010Abbe\u2010University of Applied Sciences Jena  Jena Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christoph","family":"Anders","sequence":"additional","affiliation":[{"name":"Division of Motor Research Jena University Hospital  Jena Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2023,7,7]]},"reference":[{"key":"e_1_2_11_2_1","unstructured":"SchomerA.US time spent with media 2021: digital media usage gains after the 2020 pandemic year but traditional formats fade eMarketer 27 May 2021[cited 2023 Jan 10]. 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