ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Causes of eye cloudiness in dogs

Updated on February 18, 2012

Dogs are renowned for their heightened sense. A dog’s scenting ability is legendary. Dogs have powerful vision as well. Human’s best friends may not have the ability to see the full colors of the rainbow just like humans can but these animals have excellent night vision. Dogs though like humans, tend to develop eye problems throughout their lives. Eye cloudiness is one of these canine eye problems that trouble the dog and concerns the dog owner. A dog’s eye that appears cloudy would necessitate a visit to the vet. Some eye concerns are genetic, others are acquired. A dog owner has to know the causes of these eye problems in order to prevent its occurrence.

Click thumbnail to view full-size

A dog’s normal healthy eye

The lens of a normal healthy eye is clear and has a greenish hue when lighted up for examination. The lens has to be translucent and clear to facilitate the transmission of light to the retina at the back of the eyes. Normal vision can be impaired when the dog develops cloudiness that affect the cornea, the lens and the fluid in the front chamber of the eye.

Persistent Pupillary membrane

This eye cloudiness is congenital. The vision reducing capacity begins during the dog’s fetal development. The blood vessels inside the eye deteriorate and loss their function even before the dog is born. The fibrous strands crisscross the eyes giving the cornea an opaque appearance. This untreatable condition that may partially or completely obscure vision is common in the Basenji breed.


Cataract is a prevalent eye problem in canines. This condition that causes vision-reducing opacity is commonly an inherited disorder. This eye problem that obscures vision when a cloud gradually grows over the lens is often seen in Cocker Spaniels and in Boston Terriers. Cataract can also be acquired. A cloudy film will obscure a dog’s vision after an eye injury. The growth can be the outcome of a nutritional deficiency or a complication that is linked to some health concerns like diabetes. Cataract that spontaneously develops in older dogs is known as senile cataract.

Nuclear sclerosis

Nuclear sclerosis is an age related cause of canine eye cloudiness. As the dog gets older, changes occur inside the eyes and cause eye cloudiness and impair vision. The nucleus of the lens that is constantly created is stacked up and becomes denser when compressed by newly grown lens fibers thereby creating eye cloudiness. Although both age related, nuclear sclerosis is differentiated from cataract by the grayish blue tinged and pearly appearance of the cloudy lens. Cataract gives the lens a whitish crushed ice appearance.

Other causes

Eye cloudiness can be due to infection, scarring and inflammation of the cornea. The cloudiness can be due to the accumulation of white blood cells, lipids and fats in front of the lens. Cloudy eye is prevalent in older dogs. As with humans, the vision of a dog is weakened as it gets older. Cloudy eyes though also occur in young dogs. Some cases of eye cloudiness are not emergency situations but as there are several causes for this eye problem it would be best to see a vet for proper diagnosis and treatment.


    0 of 8192 characters used
    Post Comment

    No comments yet.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, 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:

    Show Details
    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 or domains, for performance and efficiency reasons. (Privacy Policy)
    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)
    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.
    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)