Occular, Brain, and Electrical Phenomenon
Some of what you all are describing could be physical phenomenon of the eye and the brain. Sparks and shimmering bright lights to the side of your field of view can indicate a migraine headache developing. This can occur even without the actual pain of a headache. I’ve had the shimmering lights in the corner of my vision several times and that can last for a few minutes. Usually, the shimmering lights seem to change position in the visual field and can even develop blind spots. My eyesight always returns to normal and I’ve never had the pain that some people get during a migraine.
The sparks usually occur for me when I’ve done something as simple as bending over to pick something up and then standing upright. That slight change in blood pressure will sometimes but rarely cause me to see the squiggling sparks coming from the sides toward the center of vision. They usually disappear before getting to the center of my field of vision.
Also, in the retina, there is a substance called visual purple that can retain the stimulation of light for seconds to even minutes after turning out the lights to darkness. It will seem to flow, expand and contract in sometimes repetitive motions and in different colors and seem to be right in front of your eyes.
After-images can linger for minutes too and can be seen as the opposite color to what was just viewed. Stare at an orange spot and close your eyes and you’ll see a latent green spot image that will slowly fade away.
Try this experiment sometime when you get up in the middle of the night and your eyes are used to the dark. Keep one eye tightly closed and turn on the light for a few seconds. Turn off the light and then open your closed eye. You’ll probably notice that the eye that was exposed to the light sees a purplish or bluish hue with pulsating edges on the periphery of your vision.
Here’s another experiment to try. With the lights on and your eyes open, look straight ahead. Using a fingertip, gently press your eyelid against your eyeball near the edge of your eye socket. You should see a dark spot at the opposite side of your field of vision in that eye. Now close your eyes and press again. You’ll probably see that the dark spot has a lighted edge. In complete darkness, gently pressing the eyeball can cause a radiating halo affect in the opposite side of your vision in that eye.
After having said all that, I’ll state that I have no doubt that some of you are seeing things that are actually occurring in the environment and not simply eye-brain phenomenon. I’ve seen motion picture footage of bright points of light behaving in intelligent and even aggressive ways, so that type of evidence is very compelling and should be researched.
Now there probably are electrical and atmospheric situations that we do not know of that can cause some orbs and streaks of light, but in other cases it cannot be explained as natural occurring events.
Just remember, high electromagnetic frequencies (EMF) in close proximity to you can cause hallucinations, so that is another factor to consider. Unshielded electrical wiring and electronic devices can produce high EMF radiation. Typically, some people will also feel paranoia, irritation, and feelings of being watched when near high EMF.
All I can suggest is to keep your camera phones and video cameras handy and try to photograph what you’re seeing.
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