{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:54:18Z","timestamp":1785434058966,"version":"3.56.0"},"reference-count":32,"publisher":"Optica Publishing Group","issue":"4","license":[{"start":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T00:00:00Z","timestamp":1773100800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/doi.org\/10.1364\/OA_License_v2#VOR-OA"},{"start":{"date-parts":[[2026,3,10]],"date-time":"2026-03-10T00:00:00Z","timestamp":1773100800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/opg.optica.org\/policies\/opg-tdm-policy.json"}],"funder":[{"DOI":"10.13039\/501100011033","name":"Agencia Estatal de                         Investigaci\u00f3n","doi-asserted-by":"crossref","award":["PID2023-146439OB"],"award-info":[{"award-number":["PID2023-146439OB"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"crossref"},{"id":"https:\/\/ror.org\/003x0zc53","id-type":"ROR","asserted-by":"publisher"}]},{"name":"Fundaci\u00f3n S\u00e9neca - Agencia                         de Ciencia y Tecnolog\u00eda de la Regi\u00f3n de                         Murcia","award":["21402\/FPl\/20"],"award-info":[{"award-number":["21402\/FPl\/20"]}],"id":[{"id":"https:\/\/ror.org\/03q68pf65","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":["opg.optica.org"],"crossmark-restriction":false},"short-container-title":["Biomed. Opt. Express"],"published-print":{"date-parts":[[2026,4,1]]},"abstract":"<jats:p>We used a binocular adaptive optics visual simulator with vergence                     control to investigate the impact of spherical aberration (SA)                     profiles on different degrees of vergence-accommodation conflict                     (VAC). Stereoacuity and subjective discomfort were measured in ten                     subjects under three SA conditions (0, -0.24, and                     -0.43\u2005\u00b5m for a 4.5-mm pupil) and three vergence                     disparities: -1.5 D (parallel lines of sight), 0 D, and +1.5 D                     (eyes converging at 33\u2005cm), relative to a screen placed at an                     accommodative distance of 1.5 D. Baseline naked-eye stereoacuity was                     consistent with published values and showed deterioration for negative                     conflict (object closer than the vergence point). Adding SA did not                     substantially improve visual performance, possibly providing a small                     advantage for negative conflict but producing the opposite effect for                     positive conflict. No overall improvement was found in comfort level,                     as the subjective questionnaires revealed opposite tendencies when SA                     was introduced: discomfort decreased for negative VAC and increased                     for positive and no conflict. However, the key implication is that an                     intermediate amount of SA may equalize discomfort across conflict                     conditions, potentially reducing fatigue during prolonged viewing by                     avoiding peaks of visual distress. While further research is needed,                     this finding could have practical relevance in extended reality (ER)                     systems, as incorporating extended-depth-of-focus (EDoF) optics,                     either within the device or in the user\u2019s eye (e.g., through                     contact lenses), could provide a simple and cost-effective means to                     improve user experience.<\/jats:p>","DOI":"10.1364\/boe.593240","type":"journal-article","created":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T07:00:09Z","timestamp":1772175609000},"page":"1782","update-policy":"https:\/\/doi.org\/10.1364\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of spherical aberration on the vergence-accommodation conflict"],"prefix":"10.1364","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5682-8630","authenticated-orcid":true,"given":"Santiago","family":"Sager","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03p3aeb86","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6192-4053","authenticated-orcid":true,"given":"Pedro M.","family":"Prieto","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03p3aeb86","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1284-6591","authenticated-orcid":true,"given":"Pablo","family":"Artal","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/03p3aeb86","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"285","published-online":{"date-parts":[[2026,3,10]]},"reference":[{"key":"boe-17-4-1782-R1","doi-asserted-by":"publisher","first-page":"58","DOI":"10.1016\/j.displa.2007.09.005","type":"journal-article","volume":"29","author":"Sharples","year":"2008","journal-title":"Displays"},{"key":"boe-17-4-1782-R2","doi-asserted-by":"publisher","first-page":"33","DOI":"10.1167\/8.3.33","type":"journal-article","volume":"8","author":"Hoffman","year":"2008","journal-title":"J. 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