An open laptop is placed on a wooden table, which is in an office space. There is a potted plant, a cup, and a pen on the table. The laptop screen is blurry, and the glass wall of the office space has some designs on it. There is a person standing behind the glass wall. There are other people in the office space, and the ceiling has lights.

Floaters & Flashes: When to See Your Eye Doctor

Most people notice a small speck, thread, or flash of light in their vision at some point. It often appears without warning, which naturally raises questions.

In many cases, these changes reflect the eye's normal aging process. Sometimes, though, they signal a condition that needs immediate attention. Understanding the signs can help you decide when it's time to schedule an eye exam at Artisan Optics.

What Causes Floaters and Flashes?

Floaters and flashes often appear around the same time, but they happen for different reasons. Both are linked to changes inside the eye that become more common with age. While they're frequently harmless, they can also be early signs of a retinal problem that needs prompt attention.

Floaters: Tiny Shadows Inside the Eye

Floaters are tiny clumps of collagen or gel inside the vitreous, the clear substance that fills the center of your eye. As light passes through the eye, these particles cast shadows on the retina, creating the shapes you see drifting through your vision.

People often describe floaters as:

Small dots
Thin strings
Cobweb-like strands
Tiny circles
Wispy clouds

Floaters drift as your eyes move and often seem to dart away when you try to look directly at them. They’re usually easiest to notice against a bright background, like a clear sky or a white computer screen.

Most adults notice more floaters as they get older. Nearsightedness, previous eye surgery, and certain eye conditions can also make them more common.

Flashes: When the Retina Is Being Pulled

Flashes happen when the vitreous gently pulls on the retina. Instead of seeing light entering the eye, your retina responds to this movement by creating the sensation of a quick flash.

People often describe flashes as brief streaks of light, spark-like flickers, or lightning along the edge of their vision. They usually last only a second or two and may be easier to notice in dim lighting or when moving your eyes quickly.

As the vitreous changes over time, flashes can become more common. Because the same symptom can also accompany a retinal tear, new flashes should always be evaluated by your eye doctor.

When it Becomes a Vision Problem

The concern isn't having a few floaters. It's noticing a sudden change. A rapid increase in floaters or flashes can happen when the vitreous pulls hard enough to create a tear in the retina. Without treatment, that tear can sometimes progress to a retinal detachment.

Symptoms That Should Never Wait

Give Artisan Optics a call as soon as possible if you notice:

A sudden shower of new floaters
Frequent or persistent flashes of light
A dark curtain or shadow moving across your vision
Missing areas in your side vision
A sudden decrease in vision

These symptoms don't always mean a retinal emergency, but they should always be examined promptly. Early diagnosis often leads to simpler treatment and better outcomes.

Emergency Eye Care in Boise, ID

At Artisan Optics, we take the time to understand what's changed with your vision and perform a thorough evaluation of your eyes. Our eye doctors combine advanced diagnostic technology with personalized care, so you receive clear answers and recommendations based on your individual needs.

If you've noticed a sudden increase in floaters, repeated flashes of light, or a shadow in your vision, book an eye exam with our team. We'll help you determine what's happening and whether additional treatment is needed.

Frequently Asked Questions

Are eye floaters permanent?

Many floaters become less noticeable over time as your brain adapts to them. Some remain visible, while others gradually settle lower in the eye and drift away from your central vision.

Should I go to the emergency room for flashes and floaters?

If you experience a sudden shower of floaters, repeated flashes of light, a curtain over your vision, or sudden vision loss, seek immediate medical attention. An eye doctor can determine whether the symptoms are caused by a retinal emergency.

Can dehydration cause eye floaters?

Dehydration is not considered a common cause of eye floaters. Most floaters develop because of age-related changes in the vitreous gel inside the eye.