{"id":350,"date":"2022-05-24T16:49:32","date_gmt":"2022-05-24T12:49:32","guid":{"rendered":"https:\/\/gh.ge\/en\/disease\/poor-color-vision\/"},"modified":"2022-05-24T16:49:32","modified_gmt":"2022-05-24T12:49:32","slug":"poor-color-vision","status":"publish","type":"disease","link":"https:\/\/gh.ge\/en\/disease\/poor-color-vision\/","title":{"rendered":"Poor color vision"},"content":{"rendered":"<h2>DEFINITION<\/h2>\n<p>Poor color vision is a reduced ability to distinguish between certain colors. Although many people use the term &#8220;colorblind&#8221; to refer to the reduced ability to discriminate between colors, true colorblindness is a total lack of color vision, which is rare.<\/p>\n<p>&#13;<\/p>\n<p>Poor color vision is usually inherited. Men are more likely to be born with poor color vision. Most people with poor color vision can&#8217;t distinguish between certain shades of red and green. Less commonly, people with poor color vision can&#8217;t distinguish between shades of blue and yellow.<\/p>\n<p>&#13;<\/p>\n<p>Certain eye diseases and some medications also can cause poor color vision.<\/p>\n<h2>CAUSES<\/h2>\n<p>Seeing colors across the light spectrum begins with your eyes&#8217; ability to distinguish the primary colors red, blue and green.<\/p>\n<p>&#13;<\/p>\n<p>Light enters your eye through the cornea and passes through the lens and transparent, jelly-like tissue in your eye (vitreous body) to color-sensitive cells (cones) at the back of your eye in the retina. Chemicals in the cones distinguish colors and send that information through your optic nerve to your brain.<\/p>\n<p>&#13;<\/p>\n<p>If your eyes are normal, you can distinguish different colors, but if your cones lack one or more light-sensitive chemicals, you may see only two of the primary colors.<\/p>\n<p>&#13;<\/p>\n<p>Poor color vision has several causes:<\/p>\n<p>&#13;<\/p>\n<ul>&#13;<\/p>\n<li>&#13;\n<p><strong>Inherited disorder.<\/strong> Inherited poor color vision is much more common in males than in females. The most common color deficiency is red-green, with blue-yellow deficiency being much less common.<\/p>\n<p>&#13;<\/p>\n<p>You can inherit a mild, moderate or severe degree of the disorder. Inherited poor color vision usually affects both eyes, and the severity doesn&#8217;t change over your lifetime.<\/p>\n<p>&#13;\n<\/li>\n<p>&#13;<\/p>\n<li><strong>Diseases.<\/strong> Some conditions that can cause color deficits are diabetes, glaucoma, macular degeneration, Alzheimer&#8217;s disease, Parkinson&#8217;s disease, chronic alcoholism, leukemia and sickle cell anemia. One eye may be more affected than the other, and the color deficit may get better if the underlying disease can be treated.<\/li>\n<p>&#13;<\/p>\n<li><strong>Certain medications.<\/strong> Some medications can alter color vision, such as some drugs that treat heart problems, high blood pressure, erectile dysfunction, infections, nervous disorders and psychological problems.<\/li>\n<p>&#13;<\/p>\n<li><strong>Aging.<\/strong> Your ability to see colors deteriorates slowly as you age.<\/li>\n<p>&#13;<\/p>\n<li><strong>Chemicals.<\/strong> Exposure to some chemicals in the workplace, such as carbon disulfide and fertilizers, may cause loss of color vision.<\/li>\n<p>&#13;\n<\/ul>\n<h2>SYMPTOMS<\/h2>\n<p>You may have poor color vision and not know it. Some people figure out that they or their child has the condition when it causes confusion &mdash; such as when there are problems differentiating the colors in a traffic light or interpreting color-coded learning materials.<\/p>\n<p>&#13;<\/p>\n<p>People affected by poor color vision may not be able to distinguish:<\/p>\n<p>&#13;<\/p>\n<ul>&#13;<\/p>\n<li>Different shades of red and green<\/li>\n<p>&#13;<\/p>\n<li>Different shades of blue and yellow<\/li>\n<p>&#13;<\/p>\n<li>Any colors<\/li>\n<p>&#13;\n<\/ul>\n<p>&#13;<\/p>\n<p>The most common color deficiency is an inability to see some shades of red and green. Often, a person who is red-green or blue-yellow deficient isn&#8217;t completely insensitive to both colors. Defects can be mild, moderate or severe.<\/p>\n<p>&#13;<\/p>\n<h3>When to see a doctor<\/h3>\n<p>&#13;<\/p>\n<p>If you suspect you have problems distinguishing certain colors, see an eye doctor for testing. It&#8217;s important that children get comprehensive eye exams, including color vision testing, before starting school.<\/p>\n<p>&#13;<\/p>\n<p>There&#8217;s no cure for inherited poor color vision, but if illness or eye injury is the cause, treatment may improve color vision.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DEFINITION Poor color vision is a reduced ability to distinguish between certain colors. Although many people use the term &#8220;colorblind&#8221; to refer to the reduced ability to discriminate between colors, true colorblindness is a total lack of color vision, which is rare. &#13; Poor color vision is usually inherited. Men are more likely to be &hellip; <a href=\"https:\/\/gh.ge\/en\/disease\/poor-color-vision\/\">Continued<\/a><\/p>\n","protected":false},"featured_media":0,"template":"","letter":[10],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Poor color vision - English GH<\/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:\/\/gh.ge\/en\/disease\/poor-color-vision\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Poor color vision - English GH\" \/>\n<meta property=\"og:description\" content=\"DEFINITION Poor color vision is a reduced ability to distinguish between certain colors. 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Although many people use the term &#8220;colorblind&#8221; to refer to the reduced ability to discriminate between colors, true colorblindness is a total lack of color vision, which is rare. &#13; Poor color vision is usually inherited. 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