Less Common
You also might be observing
Observation
What you see. The starting point for addressing any equine health related issue is your observation.
YOU ARE OBSERVING
Pupil, One Larger than Other
Summary
Normal pupils contract or dilate depending on light levels. It is not normal for one pupil to be persistently larger than the other if each eye is exposed to the same light. This problem is indicative of eye disease or a problem with the nerve supply to the eye or the brain. If the condition is neurologic in origin, there will usually be other signs of a systemic body-wide disease.
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Code Orange
Call Your Vet at Their First Available Office Hours
your role
What To Do
Study your horse carefully, looking for other abnormalities and call your vet to discuss your findings and concerns.
Skills you may need
Procedures that you may need to perform on your horse.
Very Common
your vet's role
Your vet does a general physical examination, looking particularly for other neurologic problems. They assess the nature of the condition, the health of the eye otherwise.
Questions Your Vet Might Ask:
- Does your horse seem normal otherwise?
- What are the results of the Whole Horse Exam (WHE)?
- How is your horse's attitude and appetite?
- How long have you noticed this?
- How does it compare to the other one?
- Has the horse had any other signs of a problem?
Diagnostics Your Vet May Perform
Figuring out the cause of the problem. These are tests or procedures used by your vet to determine what’s wrong.
Diagnoses Your Vet May Consider
The cause of the problem. These are conditions or ailments that are the cause of the observations you make.
Very Common
Less Common
Treatments Your Vet May Recommend
A way to resolve the condition or diagnosis. Resolving the underlying cause or treating the signs of disease (symptomatic treatment)
Very Common
further reading & resources
Helpful Terms and Topics
Written, reviewed or shared by experts in equine health