Dog Eye Infection: Signs, Causes & Treatment Options

Waggle Editorial Team••3 min read

Prepared by the Waggle editorial team. This article is educational, not a diagnosis or an individual veterinary review. The original listing date is retained from legacy site metadata; the actual first-publication date was not recorded.

Adorable terrier dog portrait with a dark background and gentle expression.

Photo by Bastian Riccardi on Pexels. Illustrative photo; not a patient or clinical diagnosis.

Eyes are delicate, and a dog eye infection can go from mild to serious quickly. The good news is that many eye problems respond well to early treatment. This guide is general information and not a diagnosis.

Signs of a dog eye infection

  • Redness in the white of the eye or around the eyelids
  • Yellow, green or thick discharge
  • Watery eyes or heavy tearing
  • Squinting or keeping the eye closed
  • Pawing or rubbing at the eye
  • Swelling of the eyelids
  • Cloudiness or a change in the eye's appearance
  • Sensitivity to light

Common causes

  • Bacterial or viral conjunctivitis: often with sticky discharge
  • Allergies: usually affect both eyes, with watery discharge
  • Dry eye: a lack of tears, which leads to thick, mucus-like discharge
  • Corneal scratches or ulcers: painful and can worsen quickly
  • Foreign material: grass seeds, dust or hair
  • Eyelid or eyelash problems: such as turned-in lashes
  • Glaucoma and other internal eye disease: serious conditions that need urgent care

When to get help fast

Eye problems can threaten vision. See a vet promptly if your dog has:

  • Squinting or holding the eye shut
  • A cloudy or bluish eye
  • A visible injury or something stuck in the eye
  • Bulging or swelling around the eye
  • Sudden changes in the pupil
  • Obvious pain

What not to do

Do not use human eye drops, leftover medication or home remedies without a vet's advice. Some drops, particularly those containing steroids, can make certain eye problems much worse. Do not let your dog rub the eye, and use a cone if needed.

What you can do at home

Gently wipe away discharge with a clean, damp cloth, using a fresh area each time. Keep the face clean and prevent your dog from scratching. Then get the eye checked.

What a vet may do

A vet will examine the eye, may use special stains to check the cornea and may test tear production or eye pressure. Treatment depends on the cause, and may include medicated drops or ointments.

Not sure how serious it looks? You can chat with a licensed vet on Waggle Vet and share clear photos or a short video of your dog's eye. If your dog needs an in-person eye exam, find a vet near me.

FAQs

Can a dog eye infection heal on its own?

Mild irritation can, but infections and injuries need treatment, and waiting can cause damage.

Is dog eye discharge normal?

A small amount of clear or light brown crust is common. Colored, thick or heavy discharge is not.

Are eye infections contagious between dogs?

Some can be, so keep dogs separate until a vet advises.

Talk to a vet now. Check current Waggle Vet access and eligibility terms.

Related reading

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For non-emergency questions, explore Waggle Vet. Trouble breathing, collapse, suspected poisoning or other severe signs need immediate in-person emergency care—do not wait for an online chat.

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