{"id":6070,"date":"2024-04-24T00:00:00","date_gmt":"2024-04-24T07:00:00","guid":{"rendered":"https:\/\/helloeyelab.com\/?p=6070"},"modified":"2024-01-05T09:03:25","modified_gmt":"2024-01-05T17:03:25","slug":"ever-wonder-how-youre-able-to-perceive-color","status":"publish","type":"post","link":"https:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/","title":{"rendered":"Ever wonder how you\u2019re able to perceive color?"},"content":{"rendered":"<figure class=\"wp-block-image size-large is-resized\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"640\" height=\"480\" data-attachment-id=\"6071\" data-permalink=\"https:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/greyson-joralemon-9ibqihqhuhc-unsplash\/\" data-orig-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?fit=3776%2C2832&amp;ssl=1\" data-orig-size=\"3776,2832\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"greyson-joralemon-9IBqihqhuHc-unsplash\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?fit=640%2C480&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=640%2C480&#038;ssl=1\" alt=\"\" class=\"wp-image-6071\" style=\"width:583px;height:auto\" srcset=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=2048%2C1536&amp;ssl=1 2048w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=16%2C12&amp;ssl=1 16w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=800%2C600&amp;ssl=1 800w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?resize=200%2C150&amp;ssl=1 200w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?w=1280&amp;ssl=1 1280w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/greyson-joralemon-9IBqihqhuHc-unsplash.jpg?w=1920&amp;ssl=1 1920w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\">\u62cd\u6444\u8005 <a href=\"https:\/\/unsplash.com\/@greysonjoralemon?utm_content=creditCopyText&amp;utm_medium=referral&amp;utm_source=unsplash\">Greyson Joralemon<\/a> \u5728 <a href=\"https:\/\/unsplash.com\/photos\/high-angle-photo-of-assorted-color-plastic-balls-9IBqihqhuHc?utm_content=creditCopyText&amp;utm_medium=referral&amp;utm_source=unsplash\">\u4e0d\u98de\u6e85<\/a><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">The Basics<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Color vision is an important part of human visual perception, and it is possible due to the photoreceptors in the retina. The human eye consists of two basic photoreceptor cell types, rods, and cones. Rods are responsible for vision in dim light, and cones are responsible for bright light and enable perception of color. Individuals with normal color vision have three subtypes of cones with different wavelengths corresponding to their peak absorption. Found in the central part of the retina are the cones that are sensitive to either red light (long wavelengths ~555nm), green light (medium wavelengths ~530nm) and blue light (short wavelengths ~ 426nm). Normal color processing consists of the cones registering different colors and sending information through the optic nerve to the brain. This enables us to distinguish countless shades of color.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Color Vision Deficiencies<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Color vision deficiency or known as color blindness could be congenital or acquired.<br>Congenital color deficiencies are typically bilateral and non-progressive, and acquired is<br>more likely unilateral and progressive. The types of color deficiency include red-green<br>deficiency and blue-yellow deficiency. Individuals with severe color vision defects lack<br>the photopigment to see color completely while others with a mild color vision defect<br>have a reduced sensitivity to certain colors. The degree of dysfunction varies between<br>individuals, mildly affected individuals may pass some of the less sensitive color vision<br>tests such as Farnsworth D-15 hue test. The most common type of color deficiency is red-<br>green deficiency. Color vision deficiency can be diagnosed through a comprehensive eye<br>examination. Testing that can be performed in clinic include, pseudoisochromatic tests,<br>arrangement tests (ex. Farnsworth D-15) and anomaloscope.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"640\" height=\"382\" data-attachment-id=\"6073\" data-permalink=\"https:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/image-5\/\" data-orig-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?fit=1454%2C868&amp;ssl=1\" data-orig-size=\"1454,868\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?fit=300%2C179&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?fit=640%2C382&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=640%2C382&#038;ssl=1\" alt=\"\" class=\"wp-image-6073\" style=\"width:415px;height:auto\" srcset=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=1024%2C611&amp;ssl=1 1024w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=300%2C179&amp;ssl=1 300w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=768%2C458&amp;ssl=1 768w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=18%2C12&amp;ssl=1 18w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?resize=1200%2C716&amp;ssl=1 1200w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?w=1454&amp;ssl=1 1454w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image.png?w=1280&amp;ssl=1 1280w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\">photo credit: colorblind-test.io\/ishihara-test<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"640\" height=\"480\" data-attachment-id=\"6076\" data-permalink=\"https:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/image-2-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?fit=800%2C600&amp;ssl=1\" data-orig-size=\"800,600\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"image-2\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?fit=640%2C480&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=640%2C480&#038;ssl=1\" alt=\"\" class=\"wp-image-6076\" style=\"width:444px;height:auto\" srcset=\"https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=16%2C12&amp;ssl=1 16w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=600%2C450&amp;ssl=1 600w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=400%2C300&amp;ssl=1 400w, https:\/\/i0.wp.com\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-2.png?resize=200%2C150&amp;ssl=1 200w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\">photo credit: color-blind-test.com\/d15-color-blind-test-more<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Treatment and Implications<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Color vision deficiency can be frustrating and may limit participation in occupations that include being able to differentiate between colors. Few examples include pilots, truck drivers, law enforcement, and policing. There is no cure for inherited color deficiency. However, using specifically tinted eyeglasses or wearing red-tinted contact lens on one eye can increase some people\u2019s ability to differentiate between colors.<\/p>","protected":false},"excerpt":{"rendered":"<p>The types of color deficiency include red-green<br \/>\ndeficiency and blue-yellow deficiency. Individuals with severe color vision defects lack<br \/>\nthe photopigment to see color completely while others with a mild color vision defect<br \/>\nhave a reduced sensitivity to certain colors. <\/p>","protected":false},"author":186329210,"featured_media":6073,"comment_status":"closed","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_crdt_document":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false},"categories":[1390,1363,1],"tags":[1543,1542,1541,1431,1405,1440,1523,1409,1417,1372,1544],"class_list":["post-6070","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-featured","category-ocular-health","category-uncategorized","tag-color-blind","tag-color-blindness","tag-color-vision","tag-dr-elisa-xiao","tag-dr-melody-tong","tag-dr-sherman-tung","tag-eye-care","tag-eye-exam","tag-eyelab","tag-optometrist","tag-vision-testing"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ever wonder how you\u2019re able to perceive color? - Eyelab, Doctors of Optometry<\/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:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ever wonder how you\u2019re able to perceive color? - Eyelab, Doctors of Optometry\" \/>\n<meta property=\"og:description\" content=\"The types of color deficiency include red-green deficiency and blue-yellow deficiency. Individuals with severe color vision defects lack the photopigment to see color completely while others with a mild color vision defect have a reduced sensitivity to certain colors.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/helloeyelab.com\/cn\/ever-wonder-how-youre-able-to-perceive-color\/\" \/>\n<meta property=\"og:site_name\" content=\"Eyelab, Doctors of Optometry\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/helloeyelab\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-24T07:00:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/helloeyelab.com\/wp-content\/uploads\/2024\/01\/image-1024x611.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"611\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Dr. Elisa Xiao\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. Elisa Xiao\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/\"},\"author\":{\"name\":\"Dr. Elisa Xiao\",\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/#\\\/schema\\\/person\\\/b0b31d74f71ee143eef37ffe22ddbe1f\"},\"headline\":\"Ever wonder how you\u2019re able to perceive color?\",\"datePublished\":\"2024-04-24T07:00:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/\"},\"wordCount\":353,\"publisher\":{\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/i0.wp.com\\\/helloeyelab.com\\\/wp-content\\\/uploads\\\/2024\\\/01\\\/image.png?fit=1454%2C868&ssl=1\",\"keywords\":[\"color blind\",\"color blindness\",\"Color vision\",\"Dr. elisa xiao\",\"Dr. Melody Tong\",\"Dr. Sherman Tung\",\"eye care\",\"eye exam\",\"eyelab\",\"optometrist\",\"vision testing\"],\"articleSection\":[\"Featured\",\"Ocular Health\",\"Uncategorized\"],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/\",\"url\":\"https:\\\/\\\/helloeyelab.com\\\/ever-wonder-how-youre-able-to-perceive-color\\\/\",\"name\":\"Ever wonder how you\u2019re able to perceive color? 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