Owners can establish a baseline for their dog's normal field of vision by observing how far away the dog notices a favorite toy. Changes in a dog's ability to navigate furniture arrangements or find new objects may indicate vision loss, especially problems seeing at night. Severe vision loss can cause difficulty navigating and finding objects, while cloudy eyes, dilated pupils, eye redness, and keeping the nose close to the ground are other signs. Behavioral changes like anxiety, depression, or reluctance to move could also suggest sight problems.

1. SIGNS OF VISION LOSS IN DOGS
Elmhurst Animal Care Center

2. INTRODUCTION
 Elmhurst Animal Care Center provides Illinois pets with thorough
systemic care. Elmhurst Animal Care Center also helps owners
monitor their pets' health and be mindful of changes.
Although dogs experience age-related changes just as humans
do, owners may find it difficult to notice a gradual decline. Dogs
tend to compensate for losses in capability, but owners can be
watchful for differences that may frustrate or inhibit the dog's
functions.
One of the most important steps is for an owner to establish a
baseline for the dog's normal field of vision. This is possible by
collecting a favorite toy and approaching the dog from a distance,
while watching for the point at which the dog notices the toy. The
owner can then use this baseline to assess changes in the future.

3. VISION LOSS IN DOGS
 Owners can also test a dog's vision by moving furniture and watching to
see if the dog can navigate the new setup. This can be particularly
effective at night, since loss of night vision is often the first stage of sight
loss. New objects in the home environment are often necessary to test
whether a dog can see properly, because dogs often move by habit.
Severe vision loss can lead to the dog's difficulty in navigating spaces or
finding wanted objects.
Owners can also be watchful for cloudiness of the eyes, which often
gets in the way of a dog's vision. Other visible symptoms include dilated
pupils, eye redness, and a gait in which the dog's nose is close to the
ground.
Behavioral changes may be similarly indicative of sight loss. Anxiety,
depression, confusion, or an unwillingness to move around may confirm
that the dog is suffering from an inability to perceive its surroundings
through vision.