Mean AC\/A ratios do not change over development. Wide variability is typical, so mean responses rarely apply to individuals<\/strong><\/li>\n<\/ul>\nThis study investigated the development of the link from accommodation to vergence in infants by occluding one eye thus removing binocular cues. Occluded adults continue to converge partially demonstrating that the accommodative drive to vergence (the AC\/A link) and proximal cues are sufficient to drive vergence. For infants of all ages, AC\/A ratios were found to be in the normal adult range. We conclude that infants can use monocular cues to drive vergence and that this occurs before the age when there is a substantial increase in the accuracy of oculomotor processes. There is flexibility in the developing visual system which is able to produce early vergence responses by relying upon alternative cues.<\/p>\n","protected":false},"excerpt":{"rendered":"
Turner,JE,Horwood,AM,Houston,SM,Riddell,PM. Vision Research 2002, 42(22), 2521-2532 Development of the AC\/A ratio over the first year of life Mean AC\/A ratios do not change over development. Wide variability is typical, so…Read More ><\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"parent":75,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"__cvm_playback_settings":[],"__cvm_video_id":"","footnotes":"","_links_to":"","_links_to_target":""},"class_list":["post-164","page","type-page","status-publish","hentry"],"acf":[],"aioseo_notices":[],"yoast_head":"\nDevelopment of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Development of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision\" \/>\n<meta property=\"og:description\" content=\"Turner,JE,Horwood,AM,Houston,SM,Riddell,PM. Vision Research 2002, 42(22), 2521-2532 Development of the AC\/A ratio over the first year of life Mean AC\/A ratios do not change over development. Wide variability is typical, so...Read More >\" \/>\n<meta property=\"og:url\" content=\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/\" \/>\n<meta property=\"og:site_name\" content=\"Focus on Children\u2019s Vision\" \/>\n<meta property=\"article:modified_time\" content=\"2023-05-09T15:25:59+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/\",\"url\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/\",\"name\":\"Development of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision\",\"isPartOf\":{\"@id\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/#website\"},\"datePublished\":\"2018-01-12T14:15:45+00:00\",\"dateModified\":\"2023-05-09T15:25:59+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"For Orthoptists, Ophthalmologists & Optometrists\",\"item\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Development of the response AC\/A ratio over the first year of life\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/#website\",\"url\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/\",\"name\":\"Focus on Children\u2019s Vision\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/research.reading.ac.uk\/childrens-vision\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-GB\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Development of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/","og_locale":"en_GB","og_type":"article","og_title":"Development of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision","og_description":"Turner,JE,Horwood,AM,Houston,SM,Riddell,PM. Vision Research 2002, 42(22), 2521-2532 Development of the AC\/A ratio over the first year of life Mean AC\/A ratios do not change over development. Wide variability is typical, so...Read More >","og_url":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/","og_site_name":"Focus on Children\u2019s Vision","article_modified_time":"2023-05-09T15:25:59+00:00","twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/","url":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/","name":"Development of the response AC\/A ratio over the first year of life - Focus on Children\u2019s Vision","isPartOf":{"@id":"https:\/\/research.reading.ac.uk\/childrens-vision\/#website"},"datePublished":"2018-01-12T14:15:45+00:00","dateModified":"2023-05-09T15:25:59+00:00","breadcrumb":{"@id":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/development-response-ac-ratio-first-year-life\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/research.reading.ac.uk\/childrens-vision\/"},{"@type":"ListItem","position":2,"name":"For Orthoptists, Ophthalmologists & Optometrists","item":"https:\/\/research.reading.ac.uk\/childrens-vision\/ophthalmologists-orthoptists-optometrists\/"},{"@type":"ListItem","position":3,"name":"Development of the response AC\/A ratio over the first year of life"}]},{"@type":"WebSite","@id":"https:\/\/research.reading.ac.uk\/childrens-vision\/#website","url":"https:\/\/research.reading.ac.uk\/childrens-vision\/","name":"Focus on Children\u2019s Vision","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/research.reading.ac.uk\/childrens-vision\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-GB"}]}},"_links":{"self":[{"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/pages\/164","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/comments?post=164"}],"version-history":[{"count":5,"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/pages\/164\/revisions"}],"predecessor-version":[{"id":707,"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/pages\/164\/revisions\/707"}],"up":[{"embeddable":true,"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/pages\/75"}],"wp:attachment":[{"href":"https:\/\/research.reading.ac.uk\/childrens-vision\/wp-json\/wp\/v2\/media?parent=164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}