Eye floaters and flashes are common visual symptoms that many people experience, especially as they get older. In many cases, they are harmless and caused by normal changes inside the eye. However, in some situations, they can be a sign of a more serious retinal condition that requires prompt medical attention. Because the retina is essential for vision, early evaluation by an ophthalmologist is important to prevent potential vision loss.
Understanding what floaters and flashes are, and when they may indicate a problem, can help you protect your eye health.
What Are Eye Floaters?
Eye floaters appear as small shapes that drift across your field of vision. They may look like dark spots, strands, or cobweb-like shapes that move as your eyes move. Floaters are often more noticeable when looking at bright backgrounds, such as the sky or a blank wall.
They develop in the vitreous, the gel-like substance that fills the inside of the eye. Over time, the vitreous naturally becomes more liquid and forms small clumps or fibers. These clumps cast shadows on the retina, which appear as floaters in your vision. This process is a normal part of aging and does not usually require treatment.
What Causes Flashes of Light?
Flashes of light may appear as brief flickers or streaks, often in your side vision. These flashes occur when the vitreous pulls on the retina. This is commonly associated with a condition called posterior vitreous detachment, which becomes more common as people age.
While this process is often harmless, it can sometimes cause a tear in the retina. Because of this risk, new flashes of light should always be evaluated by an ophthalmologist.
When Are Floaters and Flashes a Warning Sign?
Most floaters and flashes are not dangerous, but sudden changes in your symptoms may indicate a retinal tear or retinal detachment. These are serious medical conditions that can lead to permanent vision loss if not treated promptly.
You should seek immediate medical attention if you notice a sudden increase in floaters, new flashes of light, a dark shadow or curtain in your vision, or a sudden decrease in vision. These symptoms may indicate that the retina has been damaged or has begun to separate from the back of the eye.
Who Is at Higher Risk for Retinal Problems?
Although anyone can develop floaters and flashes, certain individuals have a higher risk of retinal complications. This includes people over the age of 50, those who are nearsighted, individuals who have had cataract surgery, and those with diabetes or a history of eye injury. A family history of retinal conditions may also increase your risk.
If you fall into any of these categories, it is especially important to seek prompt evaluation if you experience new symptoms.
How Are Floaters and Flashes Diagnosed?
An ophthalmologist can diagnose the cause of floaters and flashes through a comprehensive medical eye exam. This examination includes dilating the pupils to allow a clear view of the retina and vitreous. Using specialized diagnostic equipment, the ophthalmologist can determine whether the symptoms are related to normal aging changes or a more serious retinal condition.
Early detection allows for timely treatment and greatly improves the chances of preserving vision.
What Treatment Options Are Available?
Treatment depends on the underlying cause. Floaters caused by normal aging changes usually do not require treatment and often become less noticeable over time.
However, if a retinal tear is detected, prompt treatment is necessary to prevent retinal detachment. Retinal detachment is a serious condition that often requires surgical repair. Early treatment is critical to achieving the best possible outcome and protecting your vision.
When Should You Schedule an Eye Exam?
You should schedule a medical eye exam as soon as possible if you notice new floaters, flashes, or sudden changes in your vision. Prompt evaluation by an ophthalmologist can identify serious conditions early and help prevent permanent vision loss.
For more information or to schedule a comprehensive medical eye exam, visit Eastside Eye Physicians at our offices in Shelby Township or St. Clair Shores, Michigan. Call (586) 247-2020 or (586) 774-2020 to book an appointment today.