{"id":10969,"date":"2026-09-28T00:15:00","date_gmt":"2026-09-28T08:15:00","guid":{"rendered":"https:\/\/www.osmosis.org\/blog\/?p=10969"},"modified":"2026-08-31T09:47:07","modified_gmt":"2026-08-31T17:47:07","slug":"nclex-question-of-the-day-physiology-of-vision","status":"publish","type":"post","link":"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-vision","title":{"rendered":"NCLEX-RN\u00ae Question of the Day: Physiology of vision"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 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-vision\/#The_correct_answer_to_todays_NCLEX%C2%AE_Question_is%E2%80%A6\" >The correct answer to today&#8217;s NCLEX\u00ae Question is&#8230;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-vision\/#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-3\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-vision\/#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-4\" href=\"https:\/\/www.osmosis.org\/blog\/nclex-question-of-the-day-physiology-of-vision\/#Want_to_learn_more_about_this_topic\" >Want to learn more about this topic?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\"><em><strong>Today\u2019s NCLEX-RN\u00ae question of the day focuses on the physiology of vision in infants. Do you know the answer? Let&#8217;s find out!<\/strong><\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>labor and delivery (L&amp;D) nurse<\/strong> explains the <strong>physiology of vision<\/strong> in infants to a newly graduated nurse. <strong>The nurse knows the teaching has been successful when the newly graduated nurse identifies <em>which receptors are responsible for detecting light within the retina?<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>A. Nociceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B. Baroreceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C. Photoreceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D. Chemoreceptors<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><em>Scroll down for the correct answer!<\/em><\/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=\"Learn with Osmosis\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/iDxHtjjCMbU?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=\"The_correct_answer_to_todays_NCLEX%C2%AE_Question_is%E2%80%A6\"><\/span>The correct answer to today&#8217;s NCLEX\u00ae Question is&#8230;<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C. Photoreceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale:<\/strong> Photoreceptors are located in the retina and convert light into electrical impulses. These impulses travel through the optic nerve to the brain&#8217;s visual cortex, where visual information is processed.<\/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<figure class=\"wp-block-image alignleft size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"395\" src=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_7cae4c.png\" alt=\"Osmosis.org educational illustration of the visual pathway. The graphic shows a cross-section of the eye with labeled structures including the sclera, cornea, lens, retina, and optic nerve. An inset illustrates the retinal layers and photoreceptors, while a diagram of the brain shows visual information traveling from the eyes through the optic nerves to the visual cortex, demonstrating how light is detected and processed into vision.\" class=\"wp-image-10972\" style=\"aspect-ratio:1.921590281612369;width:394px;height:auto\" srcset=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_7cae4c.png 759w, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_7cae4c.png?resize=300,156 300w\" sizes=\"auto, (max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"372\" src=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_a13538.png\" alt=\"Osmosis.org educational illustration explaining the physiology of visual development. The graphic shows that visual development begins in the first days of life and helps mature the visual pathways connecting the eyes and brain through approximately 4 years of age. An illustration of an infant looking at a hanging mobile demonstrates how visual stimuli support the development of neural connections in the visual system.\" class=\"wp-image-10973\" style=\"aspect-ratio:2.0404053963353244;width:435px;height:auto\" srcset=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_a13538.png 759w, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2026\/09\/image_a13538.png?resize=300,147 300w\" sizes=\"auto, (max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Visual development begins during the first days of life<\/strong> when the newborn starts receiving visual stimuli from the external world. This helps <strong>maturation of the visual pathways connecting the eyes and brain<\/strong> until they reach maturity at about four years of age. <strong>The visual pathways begin in the eye.<\/strong> In the wall of the eye, there is an outer fibrous layer, which contains the cornea and sclera, and helps control and focus the entry of light. The light that passes through the cornea is directed to the lens, which collects light arrays and focuses them onto the retina at the back of the eye. The retina houses photoreceptors that translate light into electrical impulses, which are then carried by the optic nerve to the brain&#8217;s visual cortex. Finally, the visual cortex processes the impulses from both eyes and fuses them into a single visual image.<\/p>\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<p class=\"wp-block-paragraph\"><strong>A. Nociceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale:<\/strong> Nociceptors are pain receptors responsible for sending the sensory stimulus of pain to the brain. These receptors are not involved in the detection of visual signals.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B. Baroreceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale:<\/strong> Baroreceptors detect changes in blood pressure within blood vessels and help regulate cardiovascular function. They are not involved in vision.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D. Chemoreceptors<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rationale:<\/strong> Chemoreceptors are located throughout the body and are responsible for detecting changes in pH levels, carbon dioxide, and oxygen. They are not involved in detecting visual signals.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Want_to_learn_more_about_this_topic\"><\/span>Want to learn more about this topic?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Watch the Osmosis video: <\/strong><a href=\"https:\/\/www.osmosis.org\/learn\/Amblyopia:_Nursing\">Amblyopia: Nursing<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><a href=\"https:\/\/www.osmosis.org\/plans\/rn\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"250\" src=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/03\/Blog_Display_Ads_RN1_2023.png?w=700\" alt=\"\" class=\"wp-image-5423\" srcset=\"https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/03\/Blog_Display_Ads_RN1_2023.png 700w, https:\/\/www.osmosis.org\/blog\/wp-content\/uploads\/sites\/2\/2025\/03\/Blog_Display_Ads_RN1_2023.png?resize=300,107 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong><em>Try Osmosis from Elsevier today! Access your&nbsp;<a href=\"https:\/\/www.osmosis.org\/plans\/rn\">free trial<\/a>&nbsp;to find out why future<\/em> <em>clinicians and caregivers love learning by Osmosis.<\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Can you identify the retinal receptors responsible for detecting light? Strengthen your understanding of infant visual development and eye physiology with this NCLEX-style question.<\/p>\n","protected":false},"author":282,"featured_media":10974,"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":[20,29,1367,1366,32],"tags":[628,886,3345,3342,283,3151,245,290,462,797,267,3344,3256,3343,3346],"class_list":["post-10969","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-exam-prep","category-nclex","category-nclex-rn","category-questions","category-nursing","tag-clinical-judgment","tag-exam-prep","tag-eye-anatomy","tag-infant-vision","tag-nclex","tag-newborn-care","tag-nursing-education","tag-nursing-students","tag-osmosis","tag-pediatric-assessment","tag-pediatric-nursing","tag-photoreceptors","tag-physiology","tag-retina","tag-visual-development"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - 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