Pet Eye Emergency: When to Act Immediately and What Not to Do

Eyes are one of the most time-sensitive organs when something goes wrong. A pet eye emergency that seems minor can go from “that looks a bit off” to permanent vision loss within  24 to 48 hours — and sometimes faster.

Summer is peak season for eye injuries in pets. More time outdoors means more exposure to grass seeds, foxtails, pool water, and general debris at face height. Knowing which signs are same-day emergencies can protect your pet’s vision.

Signs That Are Always Same-Day Emergencies

If you notice any of the following, contact a vet today — not tomorrow, not after the weekend:

• Squinting or holding the eye shut — a pain response. Could indicate a corneal scratch, ulcer, or foreign object lodged in the eye.
• Cloudiness or changes in the appearance of the cornea — any sudden haziness, blue tinge, or change in clarity is concerning.
• Redness of the whites of the eye (sclera) — noticeable redness, especially combined with  other signs
• Pawing or rubbing at the eye repeatedly
• Excessive tearing or discharge that has appeared suddenly
• Bulging or protruding eye — this can indicate glaucoma, increased ocular pressure, or proptosis (displacement of the eyeball). This is a true emergency. Permanent vision loss can occur within hours.
• Any sudden change in the appearance of the pupil or iris

Corneal Ulcers: The Most Common Summer Eye Emergency

Corneal ulcers — scratches or abrasions on the surface of the eye — are the most common eye emergency seen in dogs who spend time in tall grass, brush, or sandy environments. They are painful enough that most dogs can’t stop squinting, but they don’t always look dramatic from the outside.

Left untreated, corneal ulcers can deepen, perforate the eye, and cause permanent vision loss or loss of the eye. Treated early — often within the same day — many resolve within days with appropriate medication.

Glaucoma: This Is Always an Emergency

Glaucoma (increased pressure within the eye) causes rapid, progressive, and often permanent vision loss. It is extremely painful. Signs include a cloudy or hazy corneal appearance, a visibly enlarged eyeball, squinting, and obvious pain behavior.

If you suspect glaucoma, treat it as urgently as you would any other acute, painful emergency.  Every hour of untreated elevated eye pressure increases the risk of irreversible damage.

Cherry Eye

Cherry eye — when the gland of the third eyelid prolapses and appears as a pink or red round mass in the inner corner of the eye — looks alarming but is not usually an immediate emergency. A vet should address it within a few days, as the exposed gland can become irritated and infected. Surgical correction is more straightforward when addressed promptly.

What NOT to Do

❌ Do Not Use Human Eye Drops

Many human eye drops contain preservatives and medications that are toxic to pets, or simply not appropriate for the condition affecting your pet’s eye. Do not apply anything to your pet’s eye without specific veterinary guidance.

❌ Do Not Try to Remove Objects Yourself

If you can see a foreign object in or near the eye, do not attempt to physically remove it. Manual removal risks causing serious additional damage; it’s best left to the professionals.

❌ Do Not Wait

Eyes are extremely sensitive. Once vision is compromised, it can be permanent. If something looks wrong — squinting, cloudiness, redness, a bulging eye — do not take a wait-and-see approach. Get to a vet that day.

What to Do While You’re on Your Way

While getting your pet to a vet:

• Apply an e-collar to prevent them from pawing at their eye and making things worse.
• Keep the area clean — if there is discharge, gently wipe around (not on) the eye with a clean, damp cloth.
• Call ahead if possible so the clinic can prepare for your arrival.

A pet eye emergency is one of the conditions where timing truly matters. Whether it’s a corneal ulcer from a grass seed, glaucoma, or a foreign body in the eye, same-day treatment dramatically improves outcomes. Don’t wait on this one.