What Are Eye Floaters?
Floaters are small clumps of cells or protein fibers that form inside the vitreous, the clear, gel-like substance that fills the interior of your eye. The vitreous helps maintain the eye’s round shape and allows light to pass through to the retina that processes visual information.
When these tiny clumps drift through the vitreous, they cast shadows on the retina, and those shadows are what you perceive as floaters.
Floaters can take many forms. Some look like small dots or circles, while others appear as squiggly lines, threads, or even cobweb-like patterns. They tend to move when you shift your gaze and may seem to dart away when you try to look directly at them.
Most people notice floaters more easily when looking at a bright, uniform background such as a clear sky or a white wall.
Why Do Floaters Develop?
The most common reason floaters appear is a natural, age-related process called posterior vitreous detachment, or PVD.
As you get older, the vitreous gel gradually shrinks and becomes more liquid. Over time, it can pull away from the retina entirely. During this separation, small fibers within the vitreous clump together, creating the shadows you see as floaters. PVD is extremely common and is considered a normal part of aging.
In most cases, the vitreous separates from the retina without causing harm, though the floaters it produces can be noticeable when they first appear.
Other factors can also contribute to the development of floaters. People who are nearsighted tend to experience floaters earlier in life because the elongated shape of their eyes places additional stress on the vitreous.
Previous eye surgeries, such as cataract removal, and direct trauma to the eye, can also disrupt the vitreous and lead to new floaters.
In some cases, a sudden change or increase in floaters may be associated with a condition that requires urgent medical evaluation.
Can Floaters Disappear Without Treatment?
In many cases, floaters do become less noticeable over time. This can happen as vitreous fibers settle out of your central line of sight, and as your brain gradually adapts and pays less attention to them.
Over weeks or months, you may find that floaters that once seemed prominent barely register in your day-to-day vision.
That said, floaters rarely disappear entirely. The vitreous material causing them remains inside the eye, and certain lighting conditions, screen use, or fatigue may make them temporarily more visible again.
The speed at which floaters become less bothersome varies from person to person. For the majority of patients, floaters are a mild annoyance rather than a lasting disruption. In rare cases where floaters are large, dense, or significantly interfere with daily activities like reading or driving, treatment options may be discussed with a retina specialist.
When Should You See a Retina Specialist About Floaters?
While most floaters are benign, certain changes in your vision should prompt an immediate visit to a retina specialist.
A sudden increase in the number of floaters, especially if accompanied by flashes of light, may be associated with changes involving the retina, including a retinal tear. Left untreated, a retinal tear can progress to a retinal detachment, a serious condition in which the retina separates from the tissue supporting it and loses access to its blood supply.
Other warning signs include a shadow or dark curtain spreading across part of your visual field or a sudden, noticeable decrease in vision. These symptoms should be evaluated promptly.
Knowing the differences between occasional floaters and a serious eye issue can help you act quickly when it matters most. If you are unsure whether your symptoms are cause for concern, it is appropriate to have your eyes examined. If you are not able to see a retina specialist right away, contact your optometrist or ophthalmologist for guidance.
Protect Your Vision in St. Louis, MO
At Retina Associates of St. Louis, our board-certified retina specialists have the experience and diagnostic tools to evaluate your floaters and determine whether they are a normal part of aging or a sign of something that needs treatment. Whether your floaters are new or have been present for years, our team is here to help you feel confident about your eye health.
Noticing new floaters or changes in your vision? Schedule an appointment at Retina Associates of St. Louis in St. Louis, MO, today, to have your eyes checked.