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I had a very weird experience earlier today. I suddenly noticed a thin glowing white crescent filled with black geometrical designs in my peripheral vision.
The only way I can explain it is if you were to take a thin glowing ring and cut it in half, keeping only the left half. It's glowing white, but is filled with portions of concentric circles and diagonal lines as if parts of triangles were visible, these are all black. The light is somehow flickering very fast, but not getting darker or brighter.
The half ring continued to grow larger, then the designs at the top started rotating to the left as the bottom designs started rotating to the right, then the designs in the middle started undulating. The entire ring started to turn clockwise very slowly.
I was very concerned, to say the least. I could tell it had to do with my vision as the half ring remained in my peripheral vision when I moved my eyes. I found online a description that might explain what I was seeing. It is called ophthalmic migraine. The ring finally drifted out of my vision after about 15 minutes, changing the entire time. When I was reading online I noticed the the letters under the "ring" were not visible at all.
It was absolutely fascinating.
Has anyone here experienced one of these or know about them?
Here is the explanation: "Ophthalmic migraine is quite common. Patients usually experience visual symptoms of seeing bright zig-zag type lines in their central or peripheral (side) vision. These bright lines may have associated flashing light sensations and sometimes can interfere with vision. There are many variations of symptoms. These symptoms usually resolve spontaneously after several minutes but usually less than one hour. Often, rest in a darkened room can be helpful during a migraine attack. Medical treatment is usually not necessary."
http://eugeneeyecare.com/conditions/Ophthalmic_Migraine.html
The only way I can explain it is if you were to take a thin glowing ring and cut it in half, keeping only the left half. It's glowing white, but is filled with portions of concentric circles and diagonal lines as if parts of triangles were visible, these are all black. The light is somehow flickering very fast, but not getting darker or brighter.
The half ring continued to grow larger, then the designs at the top started rotating to the left as the bottom designs started rotating to the right, then the designs in the middle started undulating. The entire ring started to turn clockwise very slowly.
I was very concerned, to say the least. I could tell it had to do with my vision as the half ring remained in my peripheral vision when I moved my eyes. I found online a description that might explain what I was seeing. It is called ophthalmic migraine. The ring finally drifted out of my vision after about 15 minutes, changing the entire time. When I was reading online I noticed the the letters under the "ring" were not visible at all.
It was absolutely fascinating.
Has anyone here experienced one of these or know about them?
Here is the explanation: "Ophthalmic migraine is quite common. Patients usually experience visual symptoms of seeing bright zig-zag type lines in their central or peripheral (side) vision. These bright lines may have associated flashing light sensations and sometimes can interfere with vision. There are many variations of symptoms. These symptoms usually resolve spontaneously after several minutes but usually less than one hour. Often, rest in a darkened room can be helpful during a migraine attack. Medical treatment is usually not necessary."
http://eugeneeyecare.com/conditions/Ophthalmic_Migraine.html