Eye Injuries in Dogs: Flush Chemicals, Never Touch Objects

Eye pain is the one pain a dog cannot hide, and it will make the gentlest dog bite the hand trying to help. Muzzle first, then decide what you are dealing with.

Dogs conceal pain almost everywhere. Eyes are the exception. An eye injury produces intense, immediate distress: squinting, rubbing the face along the carpet, pawing at it, and a completely uncharacteristic willingness to snap at whoever comes near.

That is why this page starts with your safety and not the eye.

Muzzle before you look

If you can do it without pressing on the eye, muzzle your dog. A soft muzzle, a slip muzzle, a bandage strip tied loosely round the snout, or a towel wrapped round the head all work. Owners get bitten on the face doing this every year.

If muzzling means leaning over the injured eye, skip it and have a second person hold the body steady instead.

Then stop the rubbing. A cone if you have one, otherwise a towel held loosely around the head or simply holding the front paws. Every rub deepens the damage, and a dog will rub relentlessly.

Then decide: chemical or trauma?

This split changes everything you do next.

A chemical splash means shampoo, bleach, oven or drain cleaner, weed killer, or fine dust. Flush the eye gently with saline, contact lens solution, or clean lukewarm water for a full fifteen minutes. Tip the head so the injured eye is lower, letting the rinse run away from the good eye rather than into it. Keep flushing while somebody else rings the vet and gets the car ready, then go.

A trauma injury means a stick, a claw, a knock, or something visibly stuck in the eye. Do not touch it. If there is an object embedded, do not pull it out and do not wipe at it, because that can rupture the eyeball itself and cause permanent blindness. Fit the cone, cover the eye loosely with clean damp gauze if your dog tolerates it, and go straight in.

Ring on the way and say which of the two it is, what was involved, and how long ago. That determines what is waiting for you.

Why it is always same-day

An eye ulcer can progress to a ruptured globe within 24 to 48 hours. There is no version of this where waiting until the morning surgery is the sensible choice, even for what looks like a superficial scratch.

Your vet will put a fluorescein stain in the eye to show up damage that is invisible to you, and grade it. That is a five-minute job that decides between drops and surgery.

Never use drops you already have

Do not put human eye drops, leftover medication from a previous problem, or anything containing steroids into your dog's eye.

Steroid drops in particular can turn a shallow, treatable ulcer into a deep one within hours. And do not use topical anaesthetic drops to take the pain away: they are toxic to the surface of the cornea and prevent it healing. It is one of the few situations where doing nothing is markedly better than doing the obvious thing.

What to look for

• Squinting, an eye held shut, or a lot of blinking, usually the first sign
• Rubbing the face on the carpet or pawing at the eye
• A cloudy or hazy patch on the surface
• A visible scratch, crater or object
• Redness and swelling
• Watery discharge, or thick yellow-green discharge
• Sudden dislike of bright rooms
• Going off food, hiding, or snapping when the face is touched

The summer one: grass seeds

In early summer, grass seeds are a leading cause of sudden eye pain. They work their way behind the third eyelid where you cannot see them at all, so the eye simply starts streaming and hurting after a walk through long grass with no obvious cause.

Treat that exactly as an embedded object. Do not poke around trying to find it, and go the same day. They are straightforward to remove properly and miserable if left.

Sources

This article was written using guidance from PDSA, the UK's largest veterinary charity, whose Pet Health Hub is written by its own vets and nurses; VCA Animal Hospitals, a North American hospital network with an extensive, vet-written pet health library; and AVMA, the American Veterinary Medical Association, the professional body representing US veterinarians. This guidance is for general information and does not replace a consultation with your own veterinarian. In an emergency, always contact a vet. Read [how we write our health guidance](https://rochsociety.com/how-we-write-our-health-guidance/). Last reviewed July 2026.