I was trying to find an answer to this but had no luck so far, so maybe Reddit can help. Anyways, I live in Europe, we use the metric system, and the eyesight is measured in %. The eye charts are in 5 meters distance, that’s roughly 1 meter less than 20ft (6 meters). I can read the first two top rows with correction, which means my vision would be 20%. If I was 6 meters away, I would barely be able to see the first top row. Without correction, I have around 5% eyesight. So what would my vision be according to the US system?