A Brown Spot That Moves Around in a Staffy's Eye
by A reader
A brown spot that floats and moves around inside the eye is most often an iris cyst (uveal cyst). These are small, hollow, fluid-filled bubbles that break loose from the back of the iris and drift in the fluid at the front of the eye. They are usually harmless, especially when they don't cause redness, squinting or vision problems, as in your dog.
It's still worth having your vet look, because a vet needs to tell a cyst apart from a solid pigmented growth (melanoma), which looks similar but doesn't float. A bright light shone through the spot usually shows whether it is hollow.
Most cysts are just watched. Have her seen again if the spot gets bigger, multiplies, sticks to the cornea, or if you notice cloudiness, redness, squinting or a change in her pupil.
See eye tumors and growths in dogs.
This is general information, not a diagnosis. Please follow your own vet's advice.
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