Have you ever noticed tiny spots, lines, or cobweb-like shapes drifting across your vision? Or perhaps you’ve suddenly seen brief flashes of light, especially in your peripheral vision?
These symptoms are commonly known as eye floaters and flashes. While they are often related to normal changes inside the eye as we age, a sudden increase in floaters or flashes can sometimes signal a retinal tear or retinal detachment and should be evaluated promptly.
What Are Eye Floaters?
Floaters are small spots, dots, lines, or cobweb-like shapes that appear to move across your field of vision. They are caused by tiny strands or clumps within the vitreous, the clear gel-like substance that fills the inside of your eye. These structures cast shadows onto the retina, which you perceive as floaters.
Floaters are often more noticeable when looking at a bright, plain background, such as a blue sky or white wall.
As we age, the vitreous naturally changes and can pull away from the retina. This process, called vitreous detachment, is common, particularly after age 50.
What Are Flashes of Light?
Flashes, also called photopsias, can look like brief streaks of light, sparks, or lightning in your vision. They may occur when the vitreous pulls or tugs on the retina.
Flashes can sometimes occur with migraine-related visual symptoms as well, so the cause isn’t always related to the retina. However, new or sudden flashes should not be ignored, particularly when they occur alongside new floaters.
When Are Floaters and Flashes a Warning Sign?
Most occasional floaters are harmless. The concern is when there is a sudden change.
Seek prompt eye care if you experience:
- A sudden increase in floaters
- New flashes of light
- A dark shadow in your vision
- A curtain-like area covering part of your vision
- Sudden blurry or reduced vision
These symptoms can indicate a retinal tear or retinal detachment. Retinal detachment is a medical emergency because delayed treatment can lead to permanent vision loss.
Who Has a Higher Risk?
Although retinal problems can happen to anyone, certain factors can increase the risk, including:
- Being highly nearsighted
- Getting older
- Previous cataract surgery
- A previous retinal detachment
- A family history of retinal detachment
- Significant eye injury or trauma
- Certain retinal conditions
- Diabetic retinopathy
Knowing your risk factors can help you recognize when a new visual symptom deserves immediate attention.
How Are Floaters and Flashes Evaluated?
An eye doctor can evaluate new floaters or flashes with a dilated eye examination. Dilating the pupils allows the doctor to carefully examine the retina and look for retinal tears, detachment, or other problems.
Additional imaging, such as an ultrasound or optical coherence tomography (OCT), may sometimes be used when more information is needed.
Don’t Ignore Sudden Changes in Your Vision
A few occasional floaters may be a normal part of aging, but you shouldn’t assume that sudden changes are harmless.
If you suddenly notice many new floaters, flashes, or a curtain or shadow in your vision, seek eye care immediately rather than waiting for the symptoms to disappear. Early evaluation and treatment can help protect your vision.
Conclusion
Eye floaters and flashes are common, especially as we age, but changes in their frequency or appearance can sometimes be an important warning sign. Knowing what to watch for can help you respond quickly when your vision needs attention.
At Total Vision Of Deland, we’re committed to helping you protect your vision with comprehensive eye care. If you’re experiencing new floaters, flashes, or other changes in your vision, contact our office for an evaluation.