Most people notice spots in their vision at some point in their lives. They may appear as tiny dots, wispy strands, floating cobwebs, or translucent shapes that drift across the visual field. In many cases, these floaters are harmless and become easier to ignore over time.
However, a sudden increase in floaters, flashes of light, or changes in peripheral vision can signal a more serious condition.
A comprehensive eye exam at Redwood Eye Center can help determine whether these symptoms are part of the normal aging process or a sign that your vision health needs immediate attention.
What Causes Spots in Vision?
Floaters develop inside the vitreous, the clear gel that fills the center of the eye.
As we age, the vitreous gradually changes texture. Small fibers within the gel can clump together and cast shadows on the retina. Those shadows appear as the floating shapes many people describe as spots, threads, squiggles, or cobwebs.
Floaters often become more noticeable when looking at:
- A bright blue sky
- A white wall
- A computer screen
- Bright pavement during sunny days
Residents of Vallejo often spend time outdoors enjoying Northern California’s sunny climate, making floaters easier to notice against bright backgrounds.
For many adults, occasional floaters are a normal part of the aging process and do not pose a threat to vision.
When Flashes Enter the Picture
Flashes can feel very different from floaters.
Many patients describe flashes as:
- Brief streaks of light
- Camera-like flashes
- Lightning bolts in peripheral vision
- Sparkling lights that appear suddenly
- These flashes occur when the vitreous pulls on the retina. The retina is the light-sensitive tissue lining the back of the eye that sends visual information to the brain.
As the vitreous naturally separates from the retina over time, some pulling can occur. This process, known as a posterior vitreous detachment, becomes more common with age.
While many posterior vitreous detachments resolve without complications, the pulling force can occasionally create a retinal tear.
Warning Signs You Should Never Ignore
Retinal tears and retinal detachments often begin with noticeable symptoms. Recognizing these warning signs can make a meaningful difference in protecting your sight.
Contact your eye doctor promptly if you experience:
A Sudden Shower of Floaters
A dramatic increase in floaters over a short period deserves immediate evaluation. Many patients describe seeing dozens of new spots appear within hours or days.
Flashes of Light
New flashes, especially in side vision, can indicate traction on the retina.
A Shadow or Curtain Across Vision
Some patients describe a gray shadow, dark curtain, or missing section of vision that gradually moves across part of their visual field.
Changes in Peripheral Vision
Loss of side vision can be one of the earliest signs that a retinal detachment is developing. These symptoms do not automatically mean a retinal tear or detachment is present. They do mean that a comprehensive eye exam should happen as soon as possible.
Stay Ahead of Your Eye Care in Vallejo, CA
Many floaters are simply part of the natural aging process. They can be annoying, but they often do not require treatment. The key is recognizing when symptoms change.
A sudden shower of floaters, new flashes of light, or a shadow moving across your vision deserves prompt attention from an eye care professional. These symptoms may be the first signs of a retinal condition that requires immediate care.
At Redwood Eye Center, we are committed to helping patients protect their vision through comprehensive eye care and advanced retinal evaluations. If you have noticed new spots in vision, flashes of light, or other sudden visual changes, book an eye exam right away.
Frequently Asked Questions
What do retinal flashes look like?
Many people describe retinal flashes as lightning streaks, camera flashes, sparks, or brief bursts of light that appear in their side vision.
Can retinal detachment happen without pain?
Yes. Retinal detachment is usually painless. Changes in vision are often the first warning signs.
How quickly should I see an eye doctor for flashes and floaters?
If you notice a sudden increase in floaters, new flashes of light, or a curtain-like shadow in your vision, contact an eye doctor as soon as possible for a comprehensive retinal evaluation.