Small arc-like momentary flashes of light in the peripheral vision are commonly experienced during vitreous separation. The vitreous pulls on the retina which makes one think they are seeing a light but it is caused by movement of the retina. Rarely flashes are associated with a tear in the retina.
In this manner, why do I see a flash of light in the corner of my eye?
Causes for flashes and floaters. Flashes and floaters can be caused by: Detachment of the jelly-like “vitreous” from the retina. Detachement of the innermost light-sensitive layer of the eye is the most common cause of floaters and flashes.
Why do I see flashing lights in my peripheral vision?
Retinal Tear. A tear in the retina can occur with vitreous detachment (see discussion above), with trauma or eye injury, or in areas at risk for a retinal tear, such as "lattice degeneration". The symptoms of a retinal tear usually are of a flash of light in the peripheral vision followed by floaters.
What does it mean when you see a lightning bolt in your eye?
Flashes of light are typically seen as lightning bolts or streaks of bright white light in the peripheral vision. As the vitreous separates from the retina, it may tug on the retina triggering the flashes of light. These can be caused by dangerous interruptions in blood flow, abnormal fluid in the retina, or migraines.