Flashes and Floaters

As you age, the vitreous gel inside the eye naturally begins to shrink and pull away from the retina. This process can cause floaters and occasional flashes, which are typically harmless. This occurs most often between the ages of 50 and 75, although it can occur earlier in people who are very nearsighted.

If the vitreous pulls too strongly on the retina during detachment, it may cause a tear or hole. This condition requires immediate treatment to prevent further complications, such as retinal detachment, which could lead to permanent vision loss. Early intervention can often prevent these serious consequences.

Eye inflammation, known as uveitis, can lead to floaters caused by the accumulation of inflammatory cells and debris within the vitreous. Uveitis can be caused by infections, autoimmune diseases, or other inflammatory conditions, affecting different parts of the eye, including the retina.

Bleeding in the eye, typically due to retinal tears, diabetic eye disease, blocked blood vessels, high blood pressure, or eye injuries, can create floaters. In particular, retinal vein occlusion is a common cause of sudden onset floaters due to bleeding in the vitreous.

Other, less common causes of floaters and flashes include eye conditions related to diabetes, eye trauma, and certain medications. Migraines can also lead to visual disturbances, such as shimmering lights or zigzag patterns, but these are not the same as flashes caused by eye issues, which generally affect one eye at a time.

Certain factors may increase the likelihood of developing serious eye conditions that involve flashes and floaters. These risk factors include:

• Being over the age of 50, especially over 65
• Having high nearsightedness
• Having a history of retinal detachment or a family history of it
• Having had recent eye surgery or significant eye injury
• Having diabetes or diabetic eye disease
• Having high blood pressure
• Having a previous eye inflammation

In many cases, floaters and flashes caused by natural aging require no treatment other than monitoring. Over time, your brain may adapt, and the floaters may become less noticeable, with some people experiencing gradual improvement.

If a retinal tear is detected, laser treatment can be used to create small burns around the tear, helping to seal it to the retina. This procedure is highly effective and is typically performed in-office to prevent retinal detachment.

Cryotherapy, or freezing treatment, may be used for small retinal tears. It creates a scar barrier around the tear to prevent fluid from getting underneath the retina. This procedure is also typically performed in-office and can effectively prevent retinal detachment.

If retinal detachment occurs, surgical repair is necessary to reattach the retina. Surgical options include gas bubble procedures, scleral buckle surgery, or vitrectomy, all of which aim to reattach the retina and prevent further vision loss.

In cases where floaters are particularly dense and affect daily activities, a vitrectomy may be considered. This procedure involves removing the vitreous gel and replacing it with a clear solution, effectively eliminating floaters, though it carries some risks.

When flashes and floaters are caused by underlying conditions such as diabetes, high blood pressure, or eye inflammation, treating these conditions is essential to prevent further complications. Depending on the cause, treatment may involve medications, laser therapy, or injections.

Prompt treatment typically leads to better outcomes, particularly with retinal detachment surgeries, which have success rates of 80 to 90 percent. However, additional surgeries may be required if complications arise.

Yes, flashes and floaters are common as people age, as the vitreous gel inside the eye naturally changes. However, sudden increases in symptoms should still be evaluated by our ophthalmologists to rule out more serious conditions like retinal tears or detachment.

While you can’t prevent age-related flashes and floaters, protecting your eyes from injury, controlling underlying health conditions, and having regular eye exams can reduce the risk of complications and help detect problems early.

Most floaters caused by aging do remain, though they often become less noticeable over time. Flashes usually stop as the vitreous completely separates from the retina, which often occurs over several months.

Yes, while floaters and flashes often start in one eye, both eyes may eventually be affected. The aging process typically impacts both eyes but may do so at different rates, sometimes years apart.

Symptoms from posterior vitreous detachment usually improve within weeks to months as the vitreous settles. Flashes typically decrease in frequency, while floaters may persist but become less noticeable over time.

If you experience sudden increases in floaters, persistent flashes, vision loss, or other significant changes, seek same-day care. These could indicate retinal detachment, which requires emergency treatment to preserve vision.

Floaters caused by aging typically don’t worsen vision significantly, though they can be bothersome. If floaters are due to more serious eye conditions, proper treatment can help prevent further damage.

While migraines can cause visual disturbances like shimmering lights or zigzag patterns, these typically affect both eyes. Flashes caused by eye problems are more localized to one eye, and should still be checked by an eye doctor.

Floaters usually become less noticeable over time as your brain adapts to ignoring them. While they may not disappear completely, many people find that they stop being a major visual distraction.

Vitrectomy surgery to remove floaters carries risks such as cataract formation, infection, and rarely, retinal detachment. Because of these risks, it is generally reserved for cases where floaters significantly impact daily activities.

Retinal tears are typically treated with laser photocoagulation or cryotherapy, both of which create a barrier to prevent fluid from getting under the retina. These treatments are usually effective and can be performed in-office.

If left untreated, a retinal tear can lead to retinal detachment, a condition where the retina separates from the eye wall. This can cause permanent vision loss if not addressed promptly.

Surgery to repair retinal detachment is successful in about 80 to 90 percent of cases. However, it may not restore vision fully, especially if the detachment affected the central vision area.

Annual eye exams are recommended for most people, especially those with age-related floaters. If you have risk factors such as diabetes or high nearsightedness, you may need more frequent exams.

Changes in your floaters, including sudden increases in number or the appearance of new flashes or shadows, should be evaluated promptly. These could indicate a new eye condition requiring treatment.

Stress does not directly cause floaters but may make you more aware of existing floaters or cause you to notice them more. New or increased floaters should still be checked by an ophthalmologist.

Currently, no eye drops have been proven to treat or eliminate floaters. Although some products claim to help, they have not been shown to be effective in clinical studies.

High blood pressure can contribute to floaters if it leads to bleeding in the eye, resulting in a sudden shower of new floaters. This condition requires prompt treatment.

New floaters or flashes after cataract surgery should be evaluated promptly as they may indicate complications, such as retinal problems. Even minor post-surgical symptoms should be checked by an eye specialist.

Flashes and floaters are rare in children, but when they do occur, they are more likely linked to eye injuries, infections, or medical conditions rather than age-related changes.

Glasses cannot reduce or eliminate floaters, as they are a visual disturbance inside the eye. However, sunglasses can reduce contrast and may make floaters less noticeable in bright light.