Do you have floaters in your eyes? When I look at anything I can see vague shapes floating about in my eyes. Luckily they are mainly around the periphery of my vision. I just drew this eye and tried to mark out their positions and opacity/transparency, The trouble is as you move your eyes or head they move and ‘float’ about too ( I guess thats why they are called floaters). Sometimes they’re very obvious, like on a bright sunny day they look like the shadows of birds flying overhead, or against a bright screen they can look quite dark. From talking to my Optician I believe they are the shadows of dead blood cells that are loose inside my eye. They either leak out or are pulled out by the gel in your eyes shrinking as your eyes get older. Mine are mostly unnoticable except when I’m concentrating on a drawing, or looking closley at something. Sometimes I see them when I’m driving , or on a snowy day. I wish I had asked the optician more? I think its something to mention if you have them as the optician needs to know, and it may be indicative of something going on. But don’t panic. Just take care of yourself.