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Dog Eye Problems: What's Normal and What Needs a Vet

Eyes are one area where it generally pays to be more cautious than with other symptoms — problems that start mild can progress to permanent damage within a day or two if left untreated. Here's what's usually minor, and what isn't.

Common, often minor causes

  • Mild allergies causing redness or watery discharge
  • A small amount of irritation from dust, wind, or shampoo
  • Minor dryness in breeds prone to it

Signs that need a vet visit soon

  • Squinting or holding the eye closed, which usually signals pain
  • Cloudiness or a visible change in the color of the eye
  • Thick, colored (yellow or green) discharge
  • Visible redness or swelling around the eye
  • Pawing at the eye repeatedly
  • Sudden changes in behavior that suggest vision loss, like bumping into furniture

See a vet the same day

  • Any trauma to the eye — a scratch, a poke, a foreign object
  • A visibly bulging eye
  • Sudden, severe redness and pain
  • Any sign the eye itself (not just the surrounding skin) looks different than normal

Why eyes get special treatment

A corneal scratch or ulcer, for example, can look minor at first but worsen within hours without the right treatment — and a delay can affect your dog's vision permanently. That's why, as a general rule, eye symptoms warrant a lower threshold for calling the vet compared to most other symptoms.

PetCare's photo analysis can look at a picture of your dog's eye alongside your description of what's going on, and return an urgency assessment. For anything eye-related, treat that as a starting point for deciding how quickly to see a vet — not as a substitute for one.

This guide is for general information only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is showing severe symptoms, contact a veterinarian or emergency animal hospital right away.