A parasite linked to cats may also threaten dogs' eyesight, researchers find
Reported by Phys.org · November 10 at 12:20 AM · Summary by Pawdeck
Researchers at the Hebrew University of Jerusalem reviewed records of five dogs treated at its veterinary teaching hospital in Rehovot between 2023 and 2025. All five had eye abnormalities and positive blood tests for antibodies to Toxoplasma gondii, a parasite commonly linked to cats. Severity ranged from mild inflammation to retinal detachment and blindness, and one dog lost an eye.
Background
Toxoplasma gondii spreads mainly when animals eat undercooked infected meat, or ingest material contaminated by cat feces. Cats are the definitive hosts, but many mammals, including dogs, can become infected. Veterinary studies of eye disease in dogs remain limited, so findings like these are usually considered early evidence rather than settled practice.
Why it matters
Dogs can develop serious eye disease linked to this parasite, so unexplained eye inflammation deserves a closer look.
What you can do
If your dog develops sudden eye redness, cloudiness or vision changes, see your veterinarian promptly and mention any exposure to cats, raw meat or contaminated soil. Keep cat litter boxes away from your dog's food and water.
Written by Pawdeck from the report by Phys.org. Background is general information, not advice about your pet; if you are worried, call your vet.
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