Cataracts in dogs and cats
Cataracts in Pets
Cataracts are a common eye problem in both dogs and cats. A cataract is an opacity (cloudiness) of the lens of the eye that prevents light from passing through normally. This can range from a small spot that doesn’t affect vision to complete lens opacity that causes blindness.
Who’s most affected?
Older pets
Certain dog breeds (e.g., Cocker Spaniels, Poodles, Siberian Huskies, Boston Terriers)
Dogs with diabetes
Pets with eye trauma or inflammation
Signs you might notice:
Cloudy, bluish, or white appearance in one or both eyes
Bumping into objects, hesitation in new places, or difficulty seeing in dim light
Eye redness, squinting, or discharge (these can be signs of inflammation or other eye disease that may accompany cataracts)
Treatment and Surgical Correction
Not all cataracts require treatment. Many pets live comfortably with partial cataracts that don’t significantly affect vision.
The only way to restore vision if cataracts are severe is surgical removal, usually by a procedure called phacoemulsification. This involves breaking up the cloudy lens with ultrasound and replacing it with an artificial lens implant.
Cataract surgery in pets must be performed by a board-certified veterinary ophthalmologist (DACVO). These specialists are trained specifically in advanced eye surgeries.
Not every pet is a candidate—ophthalmologists perform detailed eye exams (including ultrasound and electroretinography) to make sure the retina is healthy enough for surgery.
What you can do:
Cataracts themselves are not painful, but they can interfere with your pet’s vision.
In some cases, secondary issues like lens-induced uveitis or glaucoma may arise, which are painful and need urgent attention.
Schedule a veterinary exam if you notice changes in your pet’s eyes or vision. Your general veterinarian can refer you to a veterinary ophthalmologist if surgery may be an option.
Final thought:
Cataracts are common, and many pets live with them comfortably. When they do cause vision loss or complications, referral to a specialist can help restore sight and protect your pet’s eye health.
Gal Chivvis, DVM
