For the past several years I have been seeing, intermittently, little lights. They look more like tiny sparks that show themselves for only a second, many looked white while some looked red, green or blue.
On occasions I have even seen ones that looked black but had a white, halo-like rim around it.
Because I wear glasses I often just attributed it to illusions or anomalies related to my less-than-perfect vision.
Sometimes these tiny sparks appear just to the side of my vision and at other times they are right in my field of vision.
There have been occasions where I have seen blobs of blue or green as well. While I try to search for rational and logical explanations I must admit my scope of knowledge on how the eye and the visual cortex works is a bit limited.
I am unsure when I started noticing these little lights nor do I know when they actually started to appear. For all I know they could have been there all along but I never really noticed them until about ten or so years ago when I'd just be sitting around, for example, and I would see these little "sparks" just appear then disappear.
On one occasion I was in my room at night, it was dark, and I looked at something on my shelf and I could have sworn I seen a bright speck of light sit in the air in front of an object then slowly fade out. I just passed it off as either a illusion or just a firefly but it is possible it was something else too.
These little lights might be something more than just a visual irregularity then again it may not be.