When I have done too much reading on the PC sometimes I feel a tickling sensation inside my eyeball. At first I didn't even notice the tickle, however my eye would start to see blurred in one area, and a growing halo of yellow blue orange stars grows outwards from one place in my visual field. the shape is not very round, it growns like a mycelium shape, where the border is very bright with stars and lights.
So the effect resembles a mushroom growth ebbing slowly outwards from a point over the space of 30-45 minutes, where my vision in one eye becomes overcome with a blurring effect and a flashing colored araura, and an annoying tickling/electrical effect inside the eyeball. it can be more or less pronounced, and sometimes I can barely read anything up to 1 hour afterwards, and after 2 hours it has returned to normal.
I have 9.5/10 visual acuity, and this started occuring every few months since I was 33.
I can't find what I am experiencing, all the eye disorders and symptoms seem to describe different issues than what i have.
What can it be?