{"id":21331,"date":"2025-11-25T02:56:56","date_gmt":"2025-11-25T10:56:56","guid":{"rendered":"https:\/\/www.oculus.de\/us\/?post_type=avada_faq&p=21331"},"modified":"2025-11-25T02:56:56","modified_gmt":"2025-11-25T10:56:56","slug":"what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values","status":"publish","type":"avada_faq","link":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/","title":{"rendered":"What are the differences between the references in the Power Distribution display to calculate K values?"},"content":{"rendered":"

Automated keratometry generates K values on the 3 mm ring centered on the pupil center. The Pentacam\u00ae gives the clinician the option to have K values calculated for different maps using either the pupil center or the apex as the center. Once the option for the center reference has been chosen, the area to be calculated can be chosen either as a ring around the center, or in a zone (average of measurements in the area in the ring).<\/p>\n","protected":false},"excerpt":{"rendered":"

Automated keratometry generates K values on the 3 mm ring centered on the pupil center. The Pentacam\u00ae gives the clinician the option to have K values calculated for different maps using either the pupil center or the apex as the …<\/p>\n","protected":false},"author":55,"featured_media":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"faq_category":[260,262],"class_list":["post-21331","avada_faq","type-avada_faq","status-publish","format-standard","hentry","faq_category-pentacam-axl-wave","faq_category-power-calculation"],"acf":[],"yoast_head":"\nWhat are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US\" \/>\n<meta property=\"og:description\" content=\"Automated keratometry generates K values on the 3 mm ring centered on the pupil center. The Pentacam\u00ae gives the clinician the option to have K values calculated for different maps using either the pupil center or the apex as the ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/\" \/>\n<meta property=\"og:site_name\" content=\"OCULUS US\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/OCULUSusa\/\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.oculus.de\/us\/wp-content\/uploads\/sites\/10\/2021\/01\/oculus-1024x193-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"193\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@oculus_inc\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\\\/\",\"url\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\\\/\",\"name\":\"What are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#website\"},\"datePublished\":\"2025-11-25T10:56:56+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"FAQs\",\"item\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/faq-items\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"What are the differences between the references in the Power Distribution display to calculate K values?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#website\",\"url\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/\",\"name\":\"OCULUS, Inc.\",\"description\":\"OCULUS, Inc.\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#organization\"},\"alternateName\":\"OCULUS, Inc.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#organization\",\"name\":\"OCULUS, Inc.\",\"alternateName\":\"OCULUS Optikger\u00e4te GmbH\",\"url\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/wp-content\\\/uploads\\\/sites\\\/10\\\/2021\\\/01\\\/oculus-1024x193-1.png\",\"contentUrl\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/wp-content\\\/uploads\\\/sites\\\/10\\\/2021\\\/01\\\/oculus-1024x193-1.png\",\"width\":1024,\"height\":193,\"caption\":\"OCULUS, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.oculus.de\\\/us\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/OCULUSusa\\\/\",\"https:\\\/\\\/x.com\\\/oculus_inc\",\"https:\\\/\\\/www.instagram.com\\\/oculus_usa\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/oculus-inc.\\\/\",\"https:\\\/\\\/www.youtube.com\\\/OculusGermany\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US","robots":{"index":"noindex","follow":"follow"},"og_locale":"en_US","og_type":"article","og_title":"What are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US","og_description":"Automated keratometry generates K values on the 3 mm ring centered on the pupil center. The Pentacam\u00ae gives the clinician the option to have K values calculated for different maps using either the pupil center or the apex as the ...","og_url":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/","og_site_name":"OCULUS US","article_publisher":"https:\/\/www.facebook.com\/OCULUSusa\/","og_image":[{"width":1024,"height":193,"url":"https:\/\/www.oculus.de\/us\/wp-content\/uploads\/sites\/10\/2021\/01\/oculus-1024x193-1.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_site":"@oculus_inc","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/","url":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/","name":"What are the differences between the references in the Power Distribution display to calculate K values? - OCULUS US","isPartOf":{"@id":"https:\/\/www.oculus.de\/us\/#website"},"datePublished":"2025-11-25T10:56:56+00:00","breadcrumb":{"@id":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.oculus.de\/us\/faq-items\/what-are-the-differences-between-the-references-in-the-power-distribution-display-to-calculate-k-values\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.oculus.de\/us\/"},{"@type":"ListItem","position":2,"name":"FAQs","item":"https:\/\/www.oculus.de\/us\/faq-items\/"},{"@type":"ListItem","position":3,"name":"What are the differences between the references in the Power Distribution display to calculate K values?"}]},{"@type":"WebSite","@id":"https:\/\/www.oculus.de\/us\/#website","url":"https:\/\/www.oculus.de\/us\/","name":"OCULUS, Inc.","description":"OCULUS, Inc.","publisher":{"@id":"https:\/\/www.oculus.de\/us\/#organization"},"alternateName":"OCULUS, Inc.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.oculus.de\/us\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.oculus.de\/us\/#organization","name":"OCULUS, Inc.","alternateName":"OCULUS Optikger\u00e4te GmbH","url":"https:\/\/www.oculus.de\/us\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.oculus.de\/us\/#\/schema\/logo\/image\/","url":"https:\/\/www.oculus.de\/us\/wp-content\/uploads\/sites\/10\/2021\/01\/oculus-1024x193-1.png","contentUrl":"https:\/\/www.oculus.de\/us\/wp-content\/uploads\/sites\/10\/2021\/01\/oculus-1024x193-1.png","width":1024,"height":193,"caption":"OCULUS, Inc."},"image":{"@id":"https:\/\/www.oculus.de\/us\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/OCULUSusa\/","https:\/\/x.com\/oculus_inc","https:\/\/www.instagram.com\/oculus_usa\/","https:\/\/www.linkedin.com\/company\/oculus-inc.\/","https:\/\/www.youtube.com\/OculusGermany\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/avada_faq\/21331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/avada_faq"}],"about":[{"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/types\/avada_faq"}],"author":[{"embeddable":true,"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/comments?post=21331"}],"version-history":[{"count":1,"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/avada_faq\/21331\/revisions"}],"predecessor-version":[{"id":21332,"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/avada_faq\/21331\/revisions\/21332"}],"wp:attachment":[{"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/media?parent=21331"}],"wp:term":[{"taxonomy":"faq_category","embeddable":true,"href":"https:\/\/www.oculus.de\/us\/wp-json\/wp\/v2\/faq_category?post=21331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}