Diplopia/ghosting

So I have astigmatism, which probably explains all of this. I see in double all the time, if I look at the screen and open my eyes wide I see the text in two or it kind of looks like a ghost image at the top. I went to the eye doctor for this and they looked at my eyes and everything, and they told me that my eyes are healthy and that it can't be a brain related problem because if I close one of my eyes I still see ghost images/in double. I got new glasses and they slightly help, but it's still a big issue. For example if there's a white object in front of a dark wall I see the white object in two. (I'm a 17 year old girl) The first text is what I see with glasses and the last is what I see without glasses

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