This is an image of the lovely Jessie J that I’ve edited to try and show what my vision problems are like. This is an example of how I see with my left eye. I have blind spots in my right eye too but in different places.
Imagine I’m looking at the tip of Jessie’s nose (an odd thing to do but please play along here). The spot just beneath my centre of vision is the main one. It is also the most annoying one because it overlaps a little with one of the ones in my right eye. There is also one just to the left of my centre of vision (Jessie’s ring finger) and one a little to the upper right of my centre of vision (Dermot’s shirt sleeve).
These are all fairly close to my centre of vision, rather than way out to the periphery. This is why they showed up a lot better on field of vision tests focusing on the closest 15° or so rather than the whole field.
If anyone has made any similar images to represent eyesight issues I’d be interested to see them.