Spots, flashes of light or darkness on any side of your vision could be a sign of eye floaters. Most often noticeable when looking at a plain, bright background, such as a blue sky or a white wall, eye floaters are a symptom of age, according to Dr. Amir Khan, a Mayo Clinic ophthalmologist. And they can lead to a sight-threatening condition that requires immediate attention.
Having vision problems? Do you see black or gray specks, strings or cobwebs that drift about when you move your eyes? It could be eye floaters.
"In the back of our eyes, we have a substance called 'the vitreous.' When we're young, it's a firm clump of jelly. As we age, this firm clump of jelly can liquefy and break up into smaller pieces. Those smaller pieces are what you may notice as floaters," says Dr. Khan.