{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,18]],"date-time":"2026-04-18T08:44:13Z","timestamp":1776501853439,"version":"3.51.2"},"reference-count":23,"publisher":"Springer Science and Business Media LLC","issue":"5","license":[{"start":{"date-parts":[[2002,9,4]],"date-time":"2002-09-04T00:00:00Z","timestamp":1031097600000},"content-version":"vor","delay-in-days":3,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ophthalmic Physiologic Optic"],"published-print":{"date-parts":[[2002,9]]},"abstract":"<jats:p>Autonomic innervation of ciliary smooth muscle is mediated principally by the parasympathetic nervous system and is supplemented by the sympathetic nervous system. Previous drug and nerve stimulation experiments on humans and animals have demonstrated that sympathetic innervation is inhibitory (via \u03b2\u20102 adrenoceptors), relatively small, slow and augmented by concurrent levels of background parasympathetic activity. These characteristics are pertinent to the sympathetic system having a specific role in our ability to adapt successfully to sustained near vision tasks and, given the clear association between near vision and the onset and development of myopia, to a putative aetiological role in myopia development in pre\u2010disposed individuals. A fifth characteristic, namely the variation between individuals in access to an inhibitory sympathetic facility is therefore of particular interest. A novel method for continuous recording of accommodation, currently employed in a large sample longitudinal study of myopia in young adults, was used following topical instillation of non\u2010selective (timolol) and selective (betaxolol) sympathetic \u03b2\u2010adrenoceptor antagonists. Measures of post\u2010task accommodative hysteresis were taken with reference to the time\u2010course of regression of accommodation when open\u2010loop (Difference of Gaussian) conditions were immediately imposed following short (10\u2003s) and long (3\u2003min) duration far (0D) and near (3D above tonic level) tasks viewed through a Badal system. Data confirm earlier informal experimental observations that only one in three individuals are likely to have access to a sympathetic inhibitory facility during sustained near vision.<\/jats:p>","DOI":"10.1046\/j.1475-1313.2002.00054.x","type":"journal-article","created":{"date-parts":[[2003,3,12]],"date-time":"2003-03-12T10:54:48Z","timestamp":1047466488000},"page":"366-371","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["Sympathetic control of accommodation: evidence for inter\u2010subject variation"],"prefix":"10.1007","volume":"22","author":[{"given":"B.","family":"Gilmartin","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"E. A. H.","family":"Mallen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"J. 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