Yeah..
I thought I had actually found the answer for a second there. If you are interested in listening to an under grads lighting conclusion which ...oh my... is very professional sounding then read the following
Submitted by Angela, an undergraduate student from Pittsburgh, Pennsylvania, and Kris, from Chevy Chase, Maryland
What are the moving spots I see when I look at a clear, blue sky? Why do I see a "ghost" image after I look at a bright flash of light?
Provided by Jennifer F. Linden, postdoctoral fellow, University of California–San Francisco (former HHMI predoctoral fellow)
Moving Spots
The retina in humans (and all other vertebrates) is actually "upside down"—that is, the photoreceptors are at the back of the retina, and the blood vessels, at the front. (Interestingly, the retina in invertebrates, such as the octopus, is similar in structure but "right-side up.") Therefore, light reaching your photoreceptors has to travel through your blood vessels (and a couple more layers of neurons) first. You might think that this should mean that you would see your blood vessels and other retinal neurons in your vision all the time, but in fact you don't, because your photoreceptors are designed to detect changes in the visual scene.
Your eyes are making very small movements (jitters) all the time. Even when you think you are looking steadily at something, the image of the object is actually moving slightly on your retina so that your photoreceptors can detect it. But the blood vessels and neurons are truly fixed on the retina, so your photoreceptors adapt to the light levels filtered through them and do not respond to their image. When you are looking at a very unstructured visual scene, such as a blue sky, with nothing more strongly patterned to distract you, you can often see the white blood cells moving in your blood vessels, precisely because they are moving rather than fixed in position on your eye. Moreover, when an optometrist shines a light into your eye to check your retina, the light projects the blood vessel image onto a different set of photoreceptors in the retina. Those photoreceptors respond to the image, and you can suddenly see the network of blood vessels in your eye. Conversely, if you were to wear special goggles that corrected for the tiny jittery movements of your eyes so that an image from the outside world would be truly stabilized on your retina, the image would appear to fade away as your photoreceptors adapted to its constant presence.
A related biochemical process is involved in light adaptation, the process by which ....blarh blarh
OK.. me again here
(and a couple more layers of neurons) sounds interesting, funny enough I'm actually educated also and can explain anything with a little imagination, but sorry this does not quite explain it.
I will continue looking. I'm not a Shmuck.
PS Chevy Chase???