If your dog is getting older and he’s having trouble seeing, then he could have cataracts. It’s the most common problem affecting a dog’s vision.  Unfortunately, there are no effective pet medications to prevent or treat cataracts. Cataracts usually affect the lens of an eye in a dog.  Dogs may develop cataracts for a number of reasons. Genetics could be one reason. If cataracts run in the dog’s family, then chances are he’ll develop them when he gets older. Sometimes cataracts develop just because the dog is getting older. There are situations where a dog could develop a cataract as a result of an injury to the eye.  Here are the symptoms that you should look for:

• Change of eye color – if the color changes to grey, white or blue, chances are that his vision is weakening.
• Whining/Vomiting – If your dog has trouble with his vision, he may get dizzy resulting in vomiting and whining.
• Redness around the eye – Cataract sometimes affect the area around the eye resulting in redness and swelling.
• Less movement – If your dog was usually very active and suddenly lies down more, he may be having trouble seeing.
• Bumping into things – Dogs have very strong senses but if they’re losing their eyesight, their senses weaken and they can’t tell the difference between colors.