Anterior Uveitis in Dogs

Anterior Uveitis in Dogs

By: Dr. Jennifer Welser

Section: Overview

Anterior uveitis is inflammation that affects the front or anterior part of the eye called the uvea, which is the dark tissue of the eye that contains blood vessels. The iris – the tissue that makes up the pupil – is typically involved. The posterior part of the eye may or may not be affected.

The causes of anterior uveitis include:

  • Immune-mediated conditions, in which the body attacks its own tissues
  • Infections from viruses, parasites, fungi, bacteria, rickettsia
  • Tumors or cancers
  • Trauma or injury to the eye
  • Metabolic disease elsewhere in the body that is affecting the eye
  • Idiopathic, which means the cause is unknown
  • Lens-induced, which is caused by the escape of lens protein into the eye fluid and is most frequently associated with cataracts

    Older animals are more likely to have tumors, and indoor/outdoor pets are more likely to be exposed to infectious causes than pets housed strictly indoors.
    Also, in certain regions of the world specific infectious diseases are more common. Certain breeds of dogs are more likely to have immune-mediated anterior uveitis.

    Anterior uveitis can be painful for your pet and may threaten vision. Just as important, this problem can also be a sign of a disease that is affecting the rest of the your pet's body.

    What to Watch For

  • Redness
  • Tearing
  • Squinting, especially in bright light
  • A small or unevenly shaped pupil
  • A cloudy or dull appearance in the front of the eye
  • An unevenly colored iris – a normal brown iris may be very red, darker brown than normal or have fluffy yellow/white areas

  •  
    Printable Version
     
    Have a Pet Question?
    Review the Most Frequent Questions
    Answered by Dr. Jon and His Staff of Veterinarians
    Ask Dr. Jon
    Dr. Jon's Newsletter
    Yes! Send Me the Latest Health Information, Pet Tips, Pet Stories and more...
     
     

    Related Articles

    • 1 Tumors of the Anterior Uvea (Iris and Ciliary Body) in Dogs

      Tumors occurring in the anterior uvea may be located within the iris, ciliary body or both. They may originate within the eye (primary tumors) or they may spread to the eye from distant body sites (secondary...

      Read MoreRead More
    • 2 Ocular (Eye) Pain and Squinting in Dogs

      Eye pain can be difficult to determine. Most dogs will squint if their eyes are painful but many dogs may show vague signs such as sleeping more, hiding, decreased appetite, reduced playfulness or even...

      Read MoreRead More
    • 3 Red Eye in Dogs

      Eyes become reddened when blood vessels that are normally present in the white tissue surrounding the cornea or the pink tissue overlying the sclera and lining the eyelids become enlarged or filled with...

      Read MoreRead More
    • 4 Ocular (Eye) Trauma in Dogs

      Ocular trauma is the result of blunt, piercing, pointed or jagged objects inflicted directly to the eye, including cat claw injuries, thorns, branches, writing instruments, or small airborne objects. Ocular...

      Read MoreRead More
    • 5 Cryptococcosis in Dogs

      Cryptococcosis is a fungal disease contracted by inhalation of spores, which may affect dogs, cats and people. The excrement of birds, especially pigeons, is the main environmental reservoir for the spores,...

      Read MoreRead More
    Related Articles
    • 1Cryptococcosis in Dogs

      Cryptococcosis is a fungal disease contracted by inhalation of spores, which may affect dogs, cats and people. The excrement of birds, especially pigeons, is the main environmental reservoir for the spores,...

      Read MoreRead More
    • 2Red Eye in Dogs

      Eyes become reddened when blood vessels that are normally present in the white tissue surrounding the cornea or the pink tissue overlying the sclera and lining the eyelids become enlarged or filled with...

      Read MoreRead More
    • 3Ocular (Eye) Pain and Squinting in Dogs

      Eye pain can be difficult to determine. Most dogs will squint if their eyes are painful but many dogs may show vague signs such as sleeping more, hiding, decreased appetite, reduced playfulness or even...

      Read MoreRead More
    • 4Ocular (Eye) Trauma in Dogs

      Ocular trauma is the result of blunt, piercing, pointed or jagged objects inflicted directly to the eye, including cat claw injuries, thorns, branches, writing instruments, or small airborne objects. Ocular...

      Read MoreRead More
    • 5Tumors of the Anterior Uvea (Iris and Ciliary Body) in Dogs

      Tumors occurring in the anterior uvea may be located within the iris, ciliary body or both. They may originate within the eye (primary tumors) or they may spread to the eye from distant body sites (secondary...

      Read MoreRead More
     

    Over 10,000 Veterinarian Approved Articles

    Related Articles
    • 1Cryptococcosis in Dogs

      Cryptococcosis is a fungal disease contracted by inhalation of spores, which may affect dogs, cats and people. The excrement of birds, especially pigeons, is the main environmental reservoir for the spores,...

      Read MoreRead More
    • 2Red Eye in Dogs

      Eyes become reddened when blood vessels that are normally present in the white tissue surrounding the cornea or the pink tissue overlying the sclera and lining the eyelids become enlarged or filled with...

      Read MoreRead More
    • 3Ocular (Eye) Pain and Squinting in Dogs

      Eye pain can be difficult to determine. Most dogs will squint if their eyes are painful but many dogs may show vague signs such as sleeping more, hiding, decreased appetite, reduced playfulness or even...

      Read MoreRead More
    • 4Ocular (Eye) Trauma in Dogs

      Ocular trauma is the result of blunt, piercing, pointed or jagged objects inflicted directly to the eye, including cat claw injuries, thorns, branches, writing instruments, or small airborne objects. Ocular...

      Read MoreRead More
    • 5Tumors of the Anterior Uvea (Iris and Ciliary Body) in Dogs

      Tumors occurring in the anterior uvea may be located within the iris, ciliary body or both. They may originate within the eye (primary tumors) or they may spread to the eye from distant body sites (secondary...

      Read MoreRead More