Blog:Flashes and Floaters: When Vision Changes Signal Urgent Care

Have you ever noticed tiny specks drifting across your vision or brief flashes of light in your field of view? While occasional floaters and flashes are common, sudden changes can sometimes signal a more serious eye condition requiring prompt attention.
Floaters are small specks, dots, or thread-like shapes that drift through your vision. They’re actually tiny clumps of the gel-like substance (vitreous) inside your eye that cast shadows on your retina. Floaters often become more noticeable as we age, especially after age 50, or after eye surgery or injury.
Flashes, on the other hand, look like brief streaks or bursts of light - similar to seeing a camera flash. These flashes occur when the vitreous gel pulls on the retina, stimulating the light-sensitive cells at the back of the eye.
While mild floaters and flashes are usually harmless, a sudden onset or increase could indicate a retinal tear or detachment - an emergency that can lead to permanent vision loss if not treated quickly.
Seek immediate eye care if you experience:
A sudden shower or increase in floaters
Flashes of light in one or both eyes
A shadow, curtain, or dark spot in your peripheral vision
Blurred or distorted vision
Some common causes include:
Aging: The natural shrinking of the vitreous with age
Posterior vitreous detachment (PVD): A common, usually benign condition where the vitreous separates from the retina
Eye trauma or surgery: Can disturb the vitreous or retina
Retinal tear or detachment: A serious condition that requires emergency care
At Texas State Optical Bandera, Dr. Victoria Perez performs comprehensive dilated eye exams to carefully evaluate the retina and identify the cause of your symptoms. These detailed exams allow us to detect even subtle changes that may not be immediately noticeable to you but could indicate an underlying issue requiring treatment.
Depending on the diagnosis, your treatment plan may vary. In some cases, monitoring may be recommended for minor floaters or posterior vitreous detachment (PVD), which typically do not require immediate intervention. If a retinal tear or detachment is detected, more urgent treatments such as laser therapy or surgery may be necessary to preserve your vision and prevent further damage. After treatment, follow-up care ensures your retina remains stable and your overall eye health is maintained.
Even if your floaters or flashes appear minor, it’s important not to overlook sudden changes in your vision. What may seem harmless could be the early sign of a more serious condition. Scheduling regular comprehensive eye exams allows your optometrist to monitor your retinal health, detect issues early, and provide timely treatment to protect your eyesight for years to come.
Flashes and floaters are common, but when they appear suddenly or increase in number, they could signal a retinal emergency. Prompt evaluation is key to protecting your vision and preventing lasting damage.