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Hello and thanks for your question. I'm sorry this has happened to you. I know it's probably got you spooked. From your symptoms it sounds as though there is a problem with the retina. My suspicion is that there is some leaking or swelling in the retina and this is often due to an entity called central serous retinopathy. However, there may be other problems with the retina that can be due to leaking or bleeding.
I would say that it is quite unlikely that the ankle injection of Kenalog was associated with this vision deficit, other than a temporal association; I would say that the onset of this happening to your eye is likely more coincidental to the shot in your ankle.
Regardless, I do think it would be important to see your ophthalmologist as soon as you are able to determine what may be happening in the retina.
Does that help address your concerns? Do you have any other questions I can answer?
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