Floaters are small specks, strands, or cobweb-like shapes that drift through your field of vision. You may notice them most when looking at a plain background, such as a blank wall or a bright blue sky. Most people have some floaters, but they usually become more noticeable as we get older or when they suddenly increase in number.
Inside the eye is a clear, gel-like substance called the vitreous. As we age, the vitreous slowly shrinks and can pull away from the retina (the light-sensitive layer at the back of the eye). Small clumps may form in the gel, and their shadows appear as floaters.
Floaters may drift in and out of view and can occasionally interfere with reading or driving. While some floaters remain, many become less noticeable over time as the brain adapts to them.
Flashes are brief streaks or twinkles of light, like seeing lightning or sparkles in your side vision. They occur when the vitreous tugs on the retina as it shifts or separates. This tugging stimulates the retina and creates the sensation of light, even though no external light is present.
Floaters and flashes can sometimes be a sign of a retinal tear. If the vitreous pulls hard enough on the retina, it can cause a tear, which may lead to a retinal detachment. Retinal detachment is an emergency and can cause permanent vision loss if not treated promptly.
Call our clinic immediately if you notice:
- A sudden increase in the number of floaters, especially a shower of new spots
- New or worsening flashes of light
- A dark curtain, veil, or shadow moving across your vision
These symptoms may indicate a retinal tear or detachment and require urgent evaluation. If you are unsure whether your symptoms are serious, it is always safe to contact us.