Sudden Blindness
Sight lost over hours to days. In dogs often SARDS (sudden, painless, irreversible); in cats most often a detached retina from high blood pressure (kidney or thyroid driven), which can sometimes be reversed if treated fast. The eyes can look normal, so it is a same-day vet visit to find the cause.
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Expert guides
My Cat Suddenly Went Blind: Check the Blood Pressure
If you're reading this because your cat has, in the space of a day or even overnight, started walking into furniture, missing the sofa, freezing in the middle of the room with both pupils wide and black, I want to give you the one useful thing first, before any of the biology.
My Pet Suddenly Went Blind: What to Do Right Now
If you're reading this with the phone already in your hand, watching your dog or cat crash into a door frame they've walked through a thousand times, here's the short version before anything else. Sudden loss of sight needs to be seen today, not at the weekend, not "if it's no better in a few...
Sudden Versus Slowly-Noticed Blindness: Why It Matters
There's a sentence I hear in the consult room more often than almost any other when an older pet has lost its sight, and it nearly always comes with a flush of guilt. "It happened overnight, doctor. One day she was fine, the next she was walking into the furniture." The owner is braced for...
High Blood Pressure and Your Pet's Eyes: The Link Owners Miss
Most of us think of high blood pressure as a human problem, the sort of thing a doctor mentions at a midlife check-up. So when I tell an owner that their cat's sudden blindness, or the red haze that's appeared in their dog's eye overnight, is down to blood pressure, the reaction is almost always...
Retinal Detachment: Causes, Urgency and What Can Be Saved
"Detached retina" is one of those phrases that lands like a slammed door. Most owners I say it to picture an eye coming apart, sight gone for good in an instant. So let me draw a calmer picture first, because a detached retina is a layer coming unstuck, not an eye falling apart, and whether...
SARDS: Sudden Blindness in Dogs With No Warning
There are a handful of diagnoses I genuinely dread giving, and this is one of them. A dog who was fine last week is suddenly walking into doorframes. The eyes look completely normal, there's no redness, nothing obviously hurts, and yet the dog plainly cannot see. The owner is searching for an accident to explain...
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