06/05/2026
👁️ Your cat's pupils can reveal more than you think.
Sudden changes in pupil size may be linked to glaucoma, hypertension, retinal detachment, eye inflammation, trauma, or neurologic disease. Recognizing the difference between normal pupils, miosis, mydriasis, and anisocoria could help protect your cat's vision and overall health.
Can it be treated?
✅ Many causes are treatable or manageable when detected early.
Can it be prevented?
✅ Regular veterinary checkups
✅ Blood pressure monitoring in senior cats
✅ Early screening for kidney disease and hyperthyroidism
✅ Prompt treatment of eye injuries and infections
✅ Watching for sudden changes in vision or eye appearance
🚨 Early detection is the best prevention. Any sudden pupil abnormality should be evaluated by a veterinarian promptly.
Have you ever noticed a change in your cat's eyes?