ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Color Blind

Updated on February 24, 2012

My Poem

All around the world
It's happening all the time
Oppression of any people
No matter the color, is a crime
We're all created equal
Countless like the sands
Different colors in a rainbow
Side by side, hand in hand

What is Color Blindness?

An inability to distinguish between certain colors is termed color blindness. The colors seen by normal eyes are the result of combinations of three primary colors: red, green and blue. Each of these colors is detected by a particular type of nerve ending or receptor in the retina of the eye. Color blindness is caused by the absence of one of these nerve endings, and the sufferer is therefore unable to distinguish certain colors from others.

The most common form of color blindness is an absence of the receptors sensitive to red. People with this defect cannot distinguish between red and green. When red light enters the eye, it can stimulate only the green-sensitive receptors. However, If the nerve endings sensitive to green are missing, light of any color in the range from green to red can stimulate only the red-sensitive receptors, and again the person sees only one color within this range. When a person lacks either the red or the green receptors he is said to be 'red-green' color blind.

Color blindness is an inherited defect. It is much more common in men than in women because it is a 'sex-linked' characteristic; this means that the gene for this defect appears on the X chromosome.

As a male has only one X chromosome, all of the necessary information for color vision must appear on this one chromosome if he is not to be color blind.

Because the female has two X chromosomes, she can be a 'carrier' for the defect without herself being color blind. For a woman to be color blind, both X chromosomes must carry the defect; therefore, she must inherit the trait from both parents. The disability caused by color blindness can be so insignificant that many men are not aware that they have the defect until they are examined. Color blindness is diagnosed by presenting a patient with a series of charts in which colored spots have been arranged in the form of numbers and shapes, which will be misinterpreted by the color blind person.

Comments

    0 of 8192 characters used
    Post Comment

    • Myn Is Me profile imageAUTHOR

      Myn Is Me 

      8 years ago

      Thank you bayarea.

      originally it was much longer, but in the end I wanted to say something strong, but short. Straight to the point, lets skip all the boring bits.

      Who was it that said "can't we all just get along"?

    • bayareagreatthing profile image

      bayareagreatthing 

      8 years ago from Bay Area California

      succinct and well said!

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)