{"id":3488,"date":"2022-07-27T20:39:00","date_gmt":"2022-07-27T20:39:00","guid":{"rendered":"https:\/\/www.osmosis.org\/blog\/?p=3488"},"modified":"2026-03-20T13:51:46","modified_gmt":"2026-03-20T21:51:46","slug":"nclex-question-of-the-day-physiology-of-the-eye","status":"publish","type":"post","link":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye","title":{"rendered":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_80 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">In This Article<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#The_correct_answer_to_todays_NCLEX-RN%C2%AE_Question_is%E2%80%A6\" >The correct answer to today&#8217;s NCLEX-RN\u00ae Question is&#8230;<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#B_Vascular_layer\" >B.&nbsp;Vascular layer<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#Main_takeaway\" >Main takeaway<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#Incorrect_answer_explanations\" >Incorrect answer explanations<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#A_Neural_layer\" >A.&nbsp;Neural layer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#C_Fibrous_layer\" >C. Fibrous layer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\/#D_Vitreous_layer\" >D. Vitreous layer<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\"><em><strong>Today&#8217;s NCLEX-RN\u00ae question of the day focuses on the physiology of the eye.<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The nurse is reviewing the physiology of the eye. Which layer of the eye contains the iris?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A.&nbsp;Neural layer<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B.&nbsp;<\/strong><strong>Vascular layer<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C. Fibrous layer<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D. Vitreous layer<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scroll down for the correct answer!<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Nurses Learn by Osmosis.org\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/kGJCkPfFypA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.osmosis.org\/ultimate-guide\/nclex-rn\" target=\"_blank\" rel=\"noreferrer noopener\"><strong><u>Check out our&nbsp;NCLEX-RN Study Plan Guide!<\/u><\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_correct_answer_to_todays_NCLEX-RN%C2%AE_Question_is%E2%80%A6\"><\/span>The correct answer to today&#8217;s NCLEX-RN\u00ae Question is&#8230;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"B_Vascular_layer\"><\/span><strong>B.&nbsp;<\/strong><strong>Vascular layer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale:<\/strong>&nbsp;The vascular layer is the middle layer of the eye which contains the iris, pupil, choroid, and ciliary body.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.osmosis.org\/plans\/do?source_cta=navbar\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"250\" src=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_c2ed5e.png\" alt=\"Osmosis sign up ad\" class=\"wp-image-3490\" srcset=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_c2ed5e.png 700w, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_c2ed5e.png?resize=300,107 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.osmosis.org\/plans\/do?source_cta=navbar\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Main_takeaway\"><\/span>Main takeaway<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The eye is made up of three layers: the fibrous outer layer, the middle vascular layer, and the neural layer. The vascular layer is the middle layer of the eye which contains the<a href=\"https:\/\/www.osmosis.org\/learn\/Anatomy_and_physiology_of_the_eye\" target=\"_blank\" rel=\"noreferrer noopener\">&nbsp;iris, pupil, choroid, and ciliary body<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Anatomy and physiology of the eye\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/q_TIBlc4rq8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Incorrect_answer_explanations\"><\/span>Incorrect answer explanations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"A_Neural_layer\"><\/span><strong>A.&nbsp;Neural layer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale<\/strong>: The neural layer is the inner layer of the eye which contains the&nbsp;<a href=\"https:\/\/www.osmosis.org\/learn\/Anatomy_of_the_eye\" target=\"_blank\" rel=\"noreferrer noopener\">retina<\/a>. The retina is the light detecting component of the eye.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"C_Fibrous_layer\"><\/span><strong>C. Fibrous layer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale<\/strong>: The fibrous layer is the outer layer of the eye which contains the&nbsp;<a href=\"https:\/\/www.osmosis.org\/learn\/Anatomy_of_the_eye\" target=\"_blank\" rel=\"noreferrer noopener\">cornea and sclera<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"D_Vitreous_layer\"><\/span><strong>D. Vitreous layer<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale<\/strong>: The vitreous layer includes the space between the lens and back of the eye, which consists of&nbsp;<a href=\"https:\/\/www.osmosis.org\/learn\/Anatomy_of_the_eye\" target=\"_blank\" rel=\"noreferrer noopener\">vitreous humor<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>________________________<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>Want more NCLEX\u00ae-style practice questions? Try Osmosis today! Access your&nbsp;<a href=\"https:\/\/www.osmosis.org\/login?type=create\" target=\"_blank\" rel=\"noreferrer noopener\">free trial<\/a>&nbsp;and find out why millions of current and future clinicians and caregivers love learning with us.<\/em><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.osmosis.org\/plans\/do?source_cta=navbar\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"250\" src=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_64746e.png\" alt=\"Osmosis sign up ad\" class=\"wp-image-3491\" srcset=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_64746e.png 700w, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/image_64746e.png?resize=300,107 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><br><a href=\"https:\/\/www.osmosis.org\/plans\/do?source_cta=navbar\" target=\"_blank\" rel=\"noreferrer noopener\"><\/a>NCLEX-RN\u00ae and NCLEX-PN\u00ae are registered trademarks of the National Council of State Boards of Nursing, Inc (NCSBN\u00ae). Osmosis is not affiliated with NCSBN.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today&#8217;s NCLEX-RN\u00ae question of the day focuses on the physiology of the eye. The nurse is reviewing the physiology of the eye. Which layer of the eye contains the iris? A.&nbsp;Neural layer B.&nbsp;Vascular layer C. Fibrous layer D. Vitreous layer Scroll down for the correct answer! Check out our&nbsp;NCLEX-RN Study Plan Guide! The correct answer [&hellip;]<\/p>\n","protected":false},"author":279,"featured_media":3489,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[20,29,1367,32],"tags":[],"class_list":["post-3488","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exam-prep","category-nclex","category-nclex-rn","category-nursing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog<\/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:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog\" \/>\n<meta property=\"og:description\" content=\"Today&#8217;s NCLEX-RN\u00ae question of the day focuses on the physiology of the eye. The nurse is reviewing the physiology of the eye. Which layer of the eye contains the iris? A.&nbsp;Neural layer B.&nbsp;Vascular layer C. Fibrous layer D. Vitreous layer Scroll down for the correct answer! Check out our&nbsp;NCLEX-RN Study Plan Guide! The correct answer [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\" \/>\n<meta property=\"og:site_name\" content=\"Osmosis Blog\" \/>\n<meta property=\"article:published_time\" content=\"2022-07-27T20:39:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-20T21:51:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1081\" \/>\n\t<meta property=\"og:image:height\" content=\"1080\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\"},\"author\":{\"name\":\"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/131a18b6ecda9e9a8aac2894efb9d158\"},\"headline\":\"NCLEX-RN\u00ae Question of the Day: Physiology of the eye\",\"datePublished\":\"2022-07-27T20:39:00+00:00\",\"dateModified\":\"2026-03-20T21:51:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\"},\"wordCount\":288,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp\",\"articleSection\":[\"Exam Prep\",\"NCLEX\",\"NCLEX-RN\",\"Registered Nursing (RN)\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\",\"url\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\",\"name\":\"NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp\",\"datePublished\":\"2022-07-27T20:39:00+00:00\",\"dateModified\":\"2026-03-20T21:51:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage\",\"url\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp\",\"contentUrl\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp\",\"width\":1081,\"height\":1080,\"caption\":\"NCLEX\u00ae Question of the Day: Physiology of the Eye\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.osmosis.org\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"NCLEX-RN\u00ae Question of the Day: Physiology of the eye\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#website\",\"url\":\"https:\/\/www.osmosis.org\/blog\/\",\"name\":\"Osmosis Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.osmosis.org\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#organization\",\"name\":\"Osmosis Blog\",\"url\":\"https:\/\/www.osmosis.org\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/07\/OsmosisElsevierStacked.png\",\"contentUrl\":\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/07\/OsmosisElsevierStacked.png\",\"width\":1276,\"height\":596,\"caption\":\"Osmosis Blog\"},\"image\":{\"@id\":\"https:\/\/www.osmosis.org\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/131a18b6ecda9e9a8aac2894efb9d158\",\"name\":\"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d6c2ca8e1c8eafcaf906ff92af24958d629f6c8203487bb2f1a5aebceb746a9e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d6c2ca8e1c8eafcaf906ff92af24958d629f6c8203487bb2f1a5aebceb746a9e?s=96&d=mm&r=g\",\"caption\":\"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE\"},\"description\":\"Author\/Reviewer Paige Randall, PhD, MS, RN, CEN, CNE, has been a Registered Nurse for more than a decade and has a clinical background in cardiac, emergency nursing, and nursing education Elizabeth Lucas, EdD, RN, CNE, has been a Registered Nurse since 2008 with a clinical background in oncology working in a Medical Oncology Unit, a Critical Care Bone Marrow Transplant Unit, and a Hematology\/Oncology Clinic.\",\"url\":\"https:\/\/www.osmosis.org\/blog\/author\/paigeandlizqotd\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog","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:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye","og_locale":"en_US","og_type":"article","og_title":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog","og_description":"Today&#8217;s NCLEX-RN\u00ae question of the day focuses on the physiology of the eye. The nurse is reviewing the physiology of the eye. Which layer of the eye contains the iris? A.&nbsp;Neural layer B.&nbsp;Vascular layer C. Fibrous layer D. Vitreous layer Scroll down for the correct answer! Check out our&nbsp;NCLEX-RN Study Plan Guide! The correct answer [&hellip;]","og_url":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye","og_site_name":"Osmosis Blog","article_published_time":"2022-07-27T20:39:00+00:00","article_modified_time":"2026-03-20T21:51:46+00:00","og_image":[{"width":1081,"height":1080,"url":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","type":"image\/webp"}],"author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":["Article","BlogPosting"],"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#article","isPartOf":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye"},"author":{"name":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","@id":"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/131a18b6ecda9e9a8aac2894efb9d158"},"headline":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye","datePublished":"2022-07-27T20:39:00+00:00","dateModified":"2026-03-20T21:51:46+00:00","mainEntityOfPage":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye"},"wordCount":288,"commentCount":0,"publisher":{"@id":"https:\/\/www.osmosis.org\/blog\/#organization"},"image":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage"},"thumbnailUrl":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","articleSection":["Exam Prep","NCLEX","NCLEX-RN","Registered Nursing (RN)"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye","url":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye","name":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye - Osmosis Blog","isPartOf":{"@id":"https:\/\/www.osmosis.org\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage"},"image":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage"},"thumbnailUrl":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","datePublished":"2022-07-27T20:39:00+00:00","dateModified":"2026-03-20T21:51:46+00:00","breadcrumb":{"@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#primaryimage","url":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","contentUrl":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","width":1081,"height":1080,"caption":"NCLEX\u00ae Question of the Day: Physiology of the Eye"},{"@type":"BreadcrumbList","@id":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-the-eye#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.osmosis.org\/blog"},{"@type":"ListItem","position":2,"name":"NCLEX-RN\u00ae Question of the Day: Physiology of the eye"}]},{"@type":"WebSite","@id":"https:\/\/www.osmosis.org\/blog\/#website","url":"https:\/\/www.osmosis.org\/blog\/","name":"Osmosis Blog","description":"","publisher":{"@id":"https:\/\/www.osmosis.org\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.osmosis.org\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.osmosis.org\/blog\/#organization","name":"Osmosis Blog","url":"https:\/\/www.osmosis.org\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.osmosis.org\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/07\/OsmosisElsevierStacked.png","contentUrl":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/07\/OsmosisElsevierStacked.png","width":1276,"height":596,"caption":"Osmosis Blog"},"image":{"@id":"https:\/\/www.osmosis.org\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/131a18b6ecda9e9a8aac2894efb9d158","name":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.osmosis.org\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d6c2ca8e1c8eafcaf906ff92af24958d629f6c8203487bb2f1a5aebceb746a9e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d6c2ca8e1c8eafcaf906ff92af24958d629f6c8203487bb2f1a5aebceb746a9e?s=96&d=mm&r=g","caption":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE"},"description":"Author\/Reviewer Paige Randall, PhD, MS, RN, CEN, CNE, has been a Registered Nurse for more than a decade and has a clinical background in cardiac, emergency nursing, and nursing education Elizabeth Lucas, EdD, RN, CNE, has been a Registered Nurse since 2008 with a clinical background in oncology working in a Medical Oncology Unit, a Critical Care Bone Marrow Transplant Unit, and a Hematology\/Oncology Clinic.","url":"https:\/\/www.osmosis.org\/blog\/author\/paigeandlizqotd"}]}},"jetpack_featured_media_url":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-18T143939.153.webp","jetpack-related-posts":[{"id":4242,"url":"https:\/\/www.osmosis.org\/blog\/nclex-qotd-pericardium","url_meta":{"origin":3488,"position":0},"title":"NCLEX-RN\u00ae Question of the Day: Pericardium","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"September 18, 2024","format":false,"excerpt":"Test your nursing knowledge on the pericardium\u2019s structure and function, understanding its protective role and the layers surrounding the heart.","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"NCLEX-RN Question of the Day Pericardium","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-pericardium.webp","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-pericardium.webp 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-pericardium.webp 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-pericardium.webp 2x"},"classes":[]},{"id":4105,"url":"https:\/\/www.osmosis.org\/blog\/nclex-qotd-skin-layer","url_meta":{"origin":3488,"position":1},"title":"NCLEX-RN\u00ae Question of the Day: Skin layer","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"July 17, 2024","format":false,"excerpt":"Test your NCLEX knowledge: Which skin layer has blood vessels and nerves? A nurse is conducting a community event for a group of 8-year-olds and is describing different parts of the human body. Which skin layer should the nurse identify as the one that contains blood vessels and nerve endings\u2026","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-skin-layer.webp","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-skin-layer.webp 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-skin-layer.webp 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-skin-layer.webp 2x"},"classes":[]},{"id":2254,"url":"https:\/\/www.osmosis.org\/blog\/nclex-qotd-neurotransmitter","url_meta":{"origin":3488,"position":2},"title":"NCLEX-RN\u00ae Question of the Day: Neurotransmitter","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"November 22, 2023","format":false,"excerpt":"Today's NCLEX-RN\u00ae question of the day focuses on a nurse who is reviewing neurotransmitter activity and how it relates to substance use disorders. Which is the primary neurotransmitter in the reward center of the brain?\u00a0Can you figure it out? The nurse is reviewing neurotransmitter activity and how it relates to\u2026","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"NCLEX\u00ae QOTD: Neurotransmitter","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-11T145327.954.webp","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-11T145327.954.webp 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-11T145327.954.webp 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/2024-09-11T145327.954.webp 2x"},"classes":[]},{"id":6119,"url":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-burns","url_meta":{"origin":3488,"position":3},"title":"NCLEX-RN\u00ae Question of the Day: Burns","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"June 18, 2025","format":false,"excerpt":"Explore today's NCLEX-RN\u00ae question on burn classifications and understand how to differentiate between first and second-degree burns!","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"NCLEX Question of the day burns","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/06\/NCLEX-Question-of-the-day-burns.png","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/06\/NCLEX-Question-of-the-day-burns.png 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/06\/NCLEX-Question-of-the-day-burns.png 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/06\/NCLEX-Question-of-the-day-burns.png 2x"},"classes":[]},{"id":5856,"url":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-sebaceous-glands","url_meta":{"origin":3488,"position":4},"title":"NCLEX-RN\u00ae Question of the Day: Sebaceous glands","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"April 30, 2025","format":false,"excerpt":"Study for the NCLEX-RN\u00ae exam with today\u2019s question focusing on the functions of sebaceous glands. Discover why these glands are essential overall skin health. Test your understanding and improve your clinical skills in dermatology nursing!","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"NCLEX Question of the day sebaceous glands","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/04\/NCLEX-Question-of-the-day-sebaceous_glands.png","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/04\/NCLEX-Question-of-the-day-sebaceous_glands.png 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/04\/NCLEX-Question-of-the-day-sebaceous_glands.png 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/04\/NCLEX-Question-of-the-day-sebaceous_glands.png 2x"},"classes":[]},{"id":3749,"url":"https:\/\/www.osmosis.org\/blog\/nclex-qotd-outer-canthus","url_meta":{"origin":3488,"position":5},"title":"NCLEX-RN\u00ae Question of the Day: Outer canthus","author":"Paige Randall, PhD, MS, RN, CNE &amp; Elizabeth Lucas, EdD, RN, CNE","date":"May 29, 2024","format":false,"excerpt":"Sharpen your nursing skills with this interactive NCLEX question on identifying eye anatomy, specifically the outer canthus, crucial for conjunctivitis assessment. The nurse is caring for a patient with suspected conjunctivitis.\u00a0Identify the outer canthus in the image. Scroll down for the correct answer! The correct answer to today's NCLEX-RN\u00ae Question\u2026","rel":"","context":"In &quot;Exam Prep&quot;","block_context":{"text":"Exam Prep","link":"https:\/\/www.osmosis.org\/blog\/category\/exam-prep"},"img":{"alt_text":"","src":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-outer-canthus.webp","width":350,"height":200,"srcset":"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-outer-canthus.webp 1x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-outer-canthus.webp 1.5x, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2024\/09\/nclex-outer-canthus.webp 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/posts\/3488","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/users\/279"}],"replies":[{"embeddable":true,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/comments?post=3488"}],"version-history":[{"count":3,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/posts\/3488\/revisions"}],"predecessor-version":[{"id":7100,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/posts\/3488\/revisions\/7100"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/media\/3489"}],"wp:attachment":[{"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/media?parent=3488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/categories?post=3488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.osmosis.org\/blog\/wp-json\/wp\/v2\/tags?post=3488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}