Mine was 100% caused by trauma. When I was younger I used to be able to picture as 'normal' Then I sat back on a chair that had no back and fell onto concrete , cutting the back of my head open. Ended up going to a & e with my mum and having stitches. From then on, it's been dark. Can't imagine anything whatsoever. I can recall memories though, but to do this I have to have my eyes open. And can only recall an image for  probably half a second. This can only be a memory. I can't conjure an image of an orange flying goat ect. Reading a book is difficult. Always found them hard to get into. But I am able to enjoy an audio book atleast 

Mine was 100% caused by trauma. When I was younger I used to be able to picture as 'normal' Then I sat back on a chair that had no back and fell onto concrete , cutting the back of my head open. Ended up going to a & e with my mum and having stitches. From then on, it's been dark. Can't imagine anything whatsoever. I can recall memories though, but to do this I have to have my eyes open. And can only recall an image for  probably half a second. This can only be a memory. I can't conjure an image of an orange flying goat ect. Reading a book is difficult. Always found them hard to get into. But I am able to enjoy an audio book atleast