Are You Noticing Dark Spots in Your Vision?
As we age, many of us begin to notice the presence of floaters—those small, dark spots or wavy lines that seem to glide across our field of vision. These floaters become increasingly frequent as we get older. They tend to be particularly apparent when gazing at a bright, uniform surface, such as a plain white wall or a clear blue sky. While these floaters are typically harmless, they can be quite bothersome and distracting, especially when they first emerge. However, for some individuals, the appearance of these floaters may indicate a more serious underlying issue that could lead to lasting changes in vision or even vision loss.
In this article, we'll explore the following topics:
* The reasons behind the emergence of eye floaters
* Whether floaters can disappear on their own
* When it is crucial to consult a healthcare professional
So, what causes these floaters? One common reason is the natural shedding of cells from the eye's tissue, much like skin cells that flake off. Another frequent culprit is a condition known as posterior vitreous detachment (PVD), which tends to arise in individuals over the age of 50. The vitreous humor, a gel-like substance that fills the space behind your eye, begins to liquefy and shrink with age. As it pulls away from the retina—the light-sensitive layer at the back of the eye—this process can release proteins that cast shadows on the retina, creating the sensation of floaters. Dr. Daniel Balikov, a surgical retina specialist associated with Northwestern Medicine and a clinical assistant professor at the Feinberg School of Medicine in Chicago, explains, "This process can bring out proteins that cast shadows on the retina and present as floaters."
Floaters resulting from the shedding of eye tissue cells are generally transient, appearing and disappearing intermittently. Over time, however, Dr. Balikov notes that the brain tends to adapt, learning to ignore these distractions.
More Insights on Eye Health
Floaters associated with PVD usually manifest in the peripheral or central vision and often persist longer than those not related to PVD. Unlike non-PVD floaters that may only last a few seconds, PVD floaters can linger as the vitreous gel continues its transformation into a more liquid state.
This change is a normal aspect of the aging process and cannot be prevented. Although the timing may differ from person to person, many find that these spots diminish within weeks or months. As with other types of floaters, the brain gradually becomes accustomed to them, making them less intrusive over time.
If you suddenly notice new floaters that remain present, it is essential to schedule an appointment with an optometrist or ophthalmologist to ensure there are no serious complications at play.
Most instances of PVD do not lead to severe issues. Nevertheless, for a small percentage of individuals, this condition may escalate into more significant problems, according to Dr. Purnima Patel, an ophthalmologist at Ora Vision in Peachtree Corners, Georgia, and a spokesperson for the American Academy of Ophthalmology.
As the vitreous separates from the retina, if a portion of this gel remains attached or if the force of separation is excessive, it can result in a tear or detachment of the retina. This scenario could potentially cause changes in vision or even loss of vision altogether. So, how can you recognize the warning signs? If your PVD progresses, you might experience sudden flashes of light in your vision, indicating that the retina is being irritated and that you should promptly consult your eye doctor, Dr. Patel advises.
It's crucial to seek immediate medical attention if you notice a sudden surge of floaters, blurred vision in one eye, or the feeling of a curtain or veil obscuring part of your sight. Each of these symptoms could signify retinal issues that require urgent care. If you contact your eye doctor and cannot get a timely appointment, you may be directed to visit an emergency department.
During your examination, the doctor will check for PVD and any related complications, which typically involves dilating your eyes. If no retinal tears or detachments are detected, you might be advised to return for a follow-up visit in four to six weeks to monitor any changes.
For tears and minor retinal detachments, ophthalmologists can utilize laser treatment in-office to create a scar-like barrier, which prevents further vitreous gel from affecting the retina. In cases of more significant detachment, an ophthalmologist may introduce air bubbles into the eye to help reposition the retina. This treatment can often be performed at an eye clinic; however, more severe cases may necessitate surgical intervention at a hospital.
Editor's Note: A version of this article originally appeared in the February 2026 issue of Consumer Reports on Health.
About the Author: Ashley Abramson is a freelance writer specializing in health and psychology topics. Her work has been featured in esteemed publications, including the New York Times, the Washington Post, and the Guardian. She resides in Milwaukee with her husband, two young sons, and their two beloved dogs. Outside of her writing endeavors, she enjoys delightful food, cinema, and the scenic views of Lake Michigan nearby.
