Peripheral Vision Fading and I can only read parts of words at a time

[Jarred1986]

Hi, just wondering if anyone has answers about this. I have something similar. Only started about a year ago, but where i could normally read a word by looking at it and being able to see it in one go, I now have to look at sections of the word, roughly 3 letters at a time. Ive been playing around and monitoring what i can and cant see and if i concentrate on letters of the word I have trouble seeing, eventually i can momentarilly see it but i disappears again. Ive been practicing with number plates, staring at the centre and trying to make out the letters. the best thing I can liken it to is trying to read in a foggy environment, in the sense that as the fog moves certain things im looking at disappear and then come back into view. (My vision is not foggy, Just an analogy to describe detail coming and going). I have ADD and have been on medication most of my life. I have been to optometrists who have dont a few tests. They are being directed by an Ophthalmologist. Ive had retinal scans, eye pressure, OCT, field tests and a cat scan. Everything checks out and is healthy. Any help or direction would be great.