At what age do dogs lose their eyesight?
Ebba Harris
2025-06-11 23:33:32
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As dogs get older they will begin to develop night blindness to some degree. Changes in the retina in aging dogs causes retinal degeneration and results in poor vision in dim lighting. Often, this is the first real sign pet parents will notice of their dog’s worsening eyesight. Although the change in vision may appear to have happened overnight, it’s rare that a dog goes blind that quickly. Canine blindness usually occurs gradually and it can be difficult for pet parents to notice the subtle signs of vision loss. Truthfully, most pet parents won't know their dog is blind until the dog has less than 20% of their vision.
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