streaks of lightning.
Flashes can happen when the vitreous pulls on the retina.
Sometimes this occurs during a normal posterior vitreous detachment, but the same process can occasionally cause a retinal tear. That’s why new floaters combined with flashes deserve prompt evaluation.
What About the “Curtain” Effect?
One of the most important warning signs is the appearance of a dark curtain, veil, or shadow moving across your field of vision.
This can be a sign of retinal detachment.
If this happens, don’t wait to see whether it improves on its
