Why is my horse squinting after a branch hit its eye?
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Overview
If your horse is squinting after a branch hit its eye, the eye is likely sore, irritated or scratched. It could be something as simple as dust or a small surface injury, but eye problems can change quickly, so it’s worth keeping a close eye on it.
It’s not possible to tell from squinting alone what’s going on, but checking the eye straight away can help you spot whether it looks like a mild knock or something that needs prompt veterinary attention.
Things To Check
1. Check whether the horse can open the eye at all, or if it’s keeping it tightly shut.
2. Look for redness, swelling, tearing, discharge, cloudiness or a visible mark on the eye surface.
3. See whether the eyelids or the skin around the eye are cut, swollen or holding a twig, bit of grass or debris.
4. Notice if the horse is rubbing its face, blinking a lot, head-shaking or avoiding light.
5. Check whether the eye looks different from the other one in size, shape or colour.
6. Observe whether the squinting is constant or only happens in bright light, after turnout or when moving around.
7. Watch for any change in behaviour, such as dullness, head carriage, or reluctance to be handled around the face.
Common Causes
The most common reason is irritation from the branch itself, which can leave the eye sore for a short time.
A scratch on the cornea is also common and can cause marked squinting, tearing and sensitivity to light.
Sometimes a small piece of plant material or dirt gets under the eyelid and keeps rubbing the eye.
Less commonly, the branch may have caused a deeper injury to the eyelids or eye structures, which needs veterinary assessment.
What To Do
Keep the horse somewhere calm and safe so you can observe the eye without more rubbing or dust.
Do not try to pick at the eye or eyelid, and don’t put in any human eye drops unless your vet has told you to.
If the horse will allow it, you can gently look from a safe position for obvious debris around the eye and note what you see.
Limit turnout if there’s a lot of wind, dust or bright sunlight, and keep bedding as clean and low-dust as practical.
Take a few photos if you can, especially if the swelling, discharge or squinting changes over time.
When To Contact A Vet
Contact your vet promptly if the horse can’t comfortably open the eye, the eye looks cloudy, there’s obvious damage, or the squinting is not improving. Eye injuries can worsen quickly, and it’s safest to have a vet assess anything that looks painful or different from normal.
Products That May Help
If the eye area has been rubbed or marked around the face, a general horse care collection may be useful for supporting calm, sensible first aid and everyday stable care while you monitor things closely.
Related Questions
Why is my horse tearing from one eye?
Can a horse eye scratch heal on its own?
What should I do if my horse keeps rubbing its face?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.