Replied by Rsw (Uniontown, Oh) on 07/29/2015

My neighbor recently had white lights flashing in her eye and immediately went to an opthamologist because it can be a sign of the retina pulling away from the back of the eye, especially in people who are very nearsighted. He had to laser the tear in the back of her eye in place, and after three weeks, he did the other eye because it had thin areas that could easily pull away. Untreated, this can lead to a detached retina and blindness. The eye gel becomes less as we age, and in those with elongated eyeballs causing strong nearsightedness, the back of the eyeball is already stretched thin and is more prone to tear. She said the white light kept flashing, not just once, and was not painful. I have heard of it happening as the result of a sneeze or head injury, but believe it could happen to anyone. Not sure if this is what you are describing or not, and since you had it checked, hopefully what you had was something different. Best wishes.