In the days immediately following my sudden loss of peripheral vision (see the “First day”) I found any bright light or moving object in my right visual field almost unbearable.
These stimuli seemed to leave miniature copies of themselves which persisted for a long while after the actual light or object itself was removed. In the case of a moving object I seemed to see many tiny replicas of it moving in slow motion, as though illuminated by a strobe light.
I found this quite horribly disturbing. At first I just held up my hand to shield the right hand side of my face but then I became quite desperate and decided I needed a pair of blinkers. So I made a set, something like horse blinkers, out of a cardboard box, and they helped quite a bit although obviously I couldn’t wear them outside in the street.
Later when searching the internet I found a case of a woman with right homonymous hemianopia, which is the condition I have, who constructed a cardboard mask for her spectacles in order to reduce the light entering from the right. So I am not alone.
These symptoms disappeared after a couple of days and I was very glad to see them go. The hallucinations that gradually took over from them are far more bearable.