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    Causes of Cataracts in Dogs

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    Bibek Sutradhar
    A cataract develops when the lens of the eye clouds, preventing light from reaching the retina and causing blindness. A mature cataract appears as a white disk behind the iris. Cataracts are often hereditary but can also be caused by diabetes, and antioxidants may delay their formation. While eye drops cannot reverse cataracts, surgery can successfully remove the cloudy lens and restore sight for many dogs if they are otherwise healthy enough for anesthesia.

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    Causes of Cataracts in Dogs

    Uploaded by

    Bibek Sutradhar
    46 views2 pages
    A cataract develops when the lens of the eye clouds, preventing light from reaching the retina and causing blindness. A mature cataract appears as a white disk behind the iris. Cataracts are often hereditary but can also be caused by diabetes, and antioxidants may delay their formation. While eye drops cannot reverse cataracts, surgery can successfully remove the cloudy lens and restore sight for many dogs if they are otherwise healthy enough for anesthesia.

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    cataract surgery

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    A cataract develops when the lens of the eye clouds, preventing light from reaching the retina and causing blindness. A mature cataract appears as a white disk behind the iris. Cataracts are often hereditary but can also be caused by diabetes, and antioxidants may delay their formation. While eye drops cannot reverse cataracts, surgery can successfully remove the cloudy lens and restore sight for many dogs if they are otherwise healthy enough for anesthesia.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    46 views2 pages

    Causes of Cataracts in Dogs

    Uploaded by

    Bibek Sutradhar
    A cataract develops when the lens of the eye clouds, preventing light from reaching the retina and causing blindness. A mature cataract appears as a white disk behind the iris. Cataracts are often hereditary but can also be caused by diabetes, and antioxidants may delay their formation. While eye drops cannot reverse cataracts, surgery can successfully remove the cloudy lens and restore sight for many dogs if they are otherwise healthy enough for anesthesia.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
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    A dog develops a cataract when the lens of the eye clouds, which is caused by changes

    in the water balance in the lens or changes to the proteins within the lens. When the
    lens becomes cloudy, light can’t reach the retina, causing blindness. A mature cataract
    looks like a white disk behind your dog’s iris. The part of the eye that usually looks black
    will now look white.
    Cataracts shouldn’t be confused with nuclear sclerosis, which is haziness caused by
    hardening of the lens as a dog gets older. All animals experience this change with age.
    The good news is that light is still able to pass through and contact the retina, so your
    dog can still see if she has nuclear sclerosis.

    Cataracts can develop very slowly or almost overnight.  Once the cataracts are mature (completely
    blocking light transmission to the retina), animal will be blind.

    Causes of cataracts in dogs


    Cataracts are frequently hereditary. The other common cause of cataracts is diabetes.
    High blood sugar levels change the balance of water in the lens and cataracts form.
    Often, diabetic cataracts appear very rapidly, with a dog losing her sight within a day or
    two of having any trouble at all.
    Oral antioxidants may delay cataract formation.
    Treating dog cataracts with surgery or
    medication
    Unfortunately, no eye drop or pill can reverse changes in the lens. Luckily, there is
    highly effective surgical treatment. As with people, animals — including dogs, cats,
    horses and even goldfish — can have cataract surgery to remove the cloudy lens and
    restore sight. A veterinary ophthalmologist can determine if your dog is a good
    candidate. Surgery is not a good option for all dogs, however. Occasionally, a dog will
    have inflammation in the eyes, glaucoma or damaged retinas, making it unlikely that
    surgery will be successful.
    In addition, sometimes a dog will have another illness (e.g., kidney or heart disease)
    that is bad enough to make anesthesia too risky. If this is the case, anti-inflammatory
    eye drops may be prescribed long-term to help control inflammation. Although these
    drops won’t treat the cataracts directly or restore sight, they can delay or prevent lens-
    induced glaucoma. Lens-induced glaucoma occurs when proteins from the cataract are
    released into the eye, causing an inflammatory reaction that clogs the outflow of fluid.
    Excess fluid then builds up within the eye, increasing the pressure, which is very painful.
    Other eye drops can be used to help manage glaucoma, but this disease is difficult to
    control over time.

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