Flashing Lights and Floaters in Meriden, Connecticut
What Are Flashing Lights and Floaters?
These common visual symptoms arise from changes in the clear gel that fills the inside of your eye.
Floaters appear as tiny spots, specks, threads, or cobweb-like shapes that drift across your field of vision. They move when you try to look at them directly and seem to float away when your eyes stop moving.
You may notice them most clearly when looking at a plain background like a blank wall or blue sky. These shapes can be dark or semi-transparent and may vary in size from very small dots to larger strands.
Flashing lights often look like brief streaks, arcs, or flickers of light in your side vision. They may remind you of lightning bolts or camera flashes going off.
Unlike floaters, these flashes typically last only a second or two and then disappear. You might notice them more in dim lighting or when you move your eyes quickly from side to side.
Inside your eye, a clear gel called the vitreous fills the space between your lens and retina. As we age, this gel naturally becomes more liquid and can begin to pull away from the back wall of the eye.
When the vitreous shrinks or moves, it can create shadows on your retina that you see as floaters. Flashing lights happen when the vitreous tugs on the retina as it pulls away, stimulating the nerve cells even though no real light is entering your eye.
Most floaters are harmless and result from normal aging changes in the vitreous gel. These benign floaters typically appear gradually over time and remain stable without getting worse.
Dangerous floaters appear suddenly in large numbers or come with flashing lights. Serious symptoms often include a curtain or shadow blocking part of your vision, or new floaters accompanied by vision loss that require immediate evaluation.
Recognizing Symptoms and Warning Signs
Knowing which symptoms are normal and which require urgent care helps you respond appropriately when floaters or flashes appear.
Common floaters that do not signal an emergency typically appear as one or two small spots that you have noticed for months or years. They move smoothly with your eye movements and do not change much from day to day.
You may find these everyday floaters more noticeable when you are tired, in bright light, or looking at a computer screen. Even if you have had harmless floaters for years, any sudden increase in number or change in appearance should be evaluated promptly with a dilated eye exam.
Occasional flashes of light in your side vision can occur as part of vitreous changes, especially as you get older. These flashes often appear as brief arcs of light that last a second or less.
The first episode of new flashes, or a change in your usual pattern of flashes, should be evaluated with a same-day or next-day dilated retinal exam to rule out a tear, even if flashes are brief or infrequent.
Certain symptoms mean you should contact our eye doctors right away or seek emergency care. A sudden shower of many new floaters appearing all at once is a serious warning sign.
When numerous floaters appear within hours or a single day, especially with flashing lights, we need to examine your eyes promptly. These symptoms may indicate a retinal tear or detachment.
- A sudden increase in the number of floaters you see
- Flashing lights that continue or increase in frequency
- A dark shadow or curtain moving across your field of vision
- A sudden decrease in your vision or blurry areas
- Loss of side vision in one eye
- New floaters or flashes after a head or eye injury
- New floaters or flashes after recent eye surgery, especially cataract surgery or YAG posterior capsulotomy, a laser procedure that clears the membrane behind a lens implant
- Eye pain, redness, or light sensitivity with new floaters or flashes
A torn or detached retina is a medical emergency that can cause permanent vision loss if not treated quickly. The symptoms often include a sudden burst of floaters that look like a swarm of bugs or a dark cloud.
You may also see persistent flashing lights, especially in your peripheral vision. Many people describe a gray curtain or veil that seems to pull down or across their vision.
Symptoms from retinal tears or detachment usually affect one eye. Zigzag or shimmering lights that move across both eyes at the same time and last 15 to 30 minutes are more typical of a migraine aura, though new or unusual aura patterns still require medical assessment.
You can help determine whether your flashes or floaters are coming from one eye or both by covering each eye in turn. Cover your right eye and look around with your left eye only, then switch and cover your left eye.
Symptoms that persist in only one eye at a time are more likely related to the retina or vitreous of that eye. Either way, new visual symptoms require prompt evaluation.
Who Is at Risk for Flashing Lights and Floaters
Several factors increase your likelihood of developing floaters or serious complications like retinal tears.
The natural aging process is the most common cause of floaters and flashing lights. As we reach our 50s and 60s, the vitreous gel inside our eyes begins to liquefy and shrink.
This process, called posterior vitreous detachment or PVD, is a normal part of getting older and happens to most people eventually. By age 80, most people have experienced some degree of vitreous changes.
People who are nearsighted face a higher risk of developing both floaters and serious complications like retinal tears. Nearsighted eyes are typically longer than average, which stretches the retina and makes it thinner and more vulnerable to damage.
If you have moderate to severe nearsightedness, we recommend staying alert for new floaters or flashes. Your risk increases further if you have high myopia, generally defined as a prescription stronger than minus 6 diopters.
Any surgery or trauma to your eye can increase your risk of vitreous changes and floaters. Cataract surgery is particularly associated with an increased chance of posterior vitreous detachment in the months or years following the procedure.
YAG posterior capsulotomy, a laser treatment performed after cataract surgery to clear a cloudy membrane, modestly increases the risk of retinal detachment in susceptible eyes. The risk is highest in the first five months after the procedure.
Certain medical conditions can increase your likelihood of developing floaters or related eye problems. Diabetes can cause bleeding inside the eye if blood sugar levels damage the tiny blood vessels in your retina, which may appear as a sudden cloud of dark floaters.
Other conditions that elevate risk include inflammatory diseases affecting the eye, bleeding disorders, and conditions that cause abnormal blood vessel growth.
- Lattice degeneration of the peripheral retina
- Family history of retinal detachment
- Connective tissue disorders such as Stickler syndrome, Marfan syndrome, or Ehlers-Danlos syndrome
- Very high myopia or a history of retinal detachment in the other eye
How We Diagnose Flashing Lights and Floaters
A thorough examination helps us determine whether your floaters are harmless or require treatment.
When you come to us with floaters or flashing lights, we start by asking detailed questions about your symptoms. We want to know when they started, how many floaters you see, whether they appeared suddenly, and if you have noticed any vision changes.
Our eye doctors will test your vision and check your eye pressure. We also examine the front of your eye to rule out other causes and ask whether the symptoms persist when each eye is covered to help distinguish eye-related from brain-related causes.
The most important test for flashing lights and floaters is a dilated eye exam. We place special drops in your eyes that widen your pupils, allowing us to see all the way to the back of your eye.
During the exam, we use bright lights and special lenses to carefully inspect every part of your retina. A scleral depressed examination of the far peripheral retina, where we gently press on the outside of the eye to bring the edges into view, is often performed to find small tears that can be missed without this technique.
In some cases, we may recommend additional imaging tests to get a better look at the structures inside your eye. Optical coherence tomography, or OCT, uses light waves to create detailed cross-sectional images of your retina.
B-scan ultrasound can be used if the retina cannot be seen clearly because of bleeding in the vitreous or a dense cataract. Wide-field imaging captures a broader view of your peripheral retina for future comparison.
Our primary goal during the examination is to determine whether your retina has been damaged by the vitreous pulling away. We carefully search for retinal tears, which appear as horseshoe-shaped or round breaks in the retinal tissue.
If we find a tear or detachment, we classify its severity and location to determine the best treatment approach. If an acute posterior vitreous detachment is diagnosed without a tear, we typically schedule repeat dilated exams in one to two weeks and again at four to six weeks, since some tears appear later.
Treatment Options for Flashing Lights and Floaters
Treatment depends on whether your floaters are benign or associated with retinal problems.
Most floaters do not require any treatment and can be safely monitored over time. If our exam shows that your retina is healthy and the floaters are simply due to normal vitreous changes, we typically recommend observation.
Your brain often learns to ignore these floaters after a few weeks or months, making them less bothersome. We will schedule follow-up exams to ensure your condition remains stable.
When we find a retinal tear during your exam, we often recommend laser treatment to prevent progression to retinal detachment. The procedure uses a focused beam of light to create small burns around the tear.
These burns form scar tissue that seals the edges of the tear and bonds the retina to the underlying tissue. Laser treatment is typically performed in our office and takes only a few minutes, and success rates exceed 90% in preventing detachment when performed promptly.
A detached retina requires surgical repair to restore the retina to its proper position and prevent permanent vision loss. Timing is urgent, especially if the central vision area called the macula is still attached.
We may recommend several surgical approaches depending on the type and extent of your detachment. Pneumatic retinopexy involves injecting a gas bubble to push the retina back in place, while scleral buckle surgery places a band around the eye to relieve traction on the retina.
In rare cases where floaters severely interfere with daily activities and quality of life, we may consider surgical removal of the vitreous gel. This procedure, called vitrectomy, involves removing the cloudy vitreous and replacing it with a clear saline solution.
Vitrectomy carries risks including infection, bleeding, retinal detachment, and cataract formation. In adults with their natural lens, cataract progression after vitrectomy is common and often clinically significant within one to two years.
Living with Floaters and Aftercare
Most people learn to adapt to harmless floaters, and proper aftercare is essential if you undergo treatment.
Learning to live with harmless floaters can be challenging at first, but most people adapt over time. Your brain has a remarkable ability to tune out unchanging visual information, so floaters often become less noticeable after several weeks.
There are no proven drops or supplements that dissolve floaters. Some people find that using tinted lenses or adjusting screen contrast reduces awareness of floaters.
If you undergo laser treatment or surgery for a retinal tear or detachment, we will provide specific instructions about activity limitations. Many procedures require you to maintain certain head positions for several days or weeks to help the retina heal properly.
You may need to avoid heavy lifting, strenuous exercise, and activities that could jar your head. If a gas bubble was placed in your eye, avoid air travel and notify all healthcare providers, as certain anesthetics must be avoided until the bubble has fully absorbed.
After treatment for retinal problems, regular follow-up visits are essential to ensure proper healing. We typically see you within a day or two after laser treatment to check that the area is sealing properly.
For surgical procedures, your follow-up schedule may include visits at one day, one week, one month, and several months after surgery. Even if you only have benign floaters, we recommend periodic eye exams to monitor for any changes.
Staying alert to changes in your symptoms is crucial for protecting your vision long-term. Keep track of any increase in the number or size of floaters, new flashing lights, or changes in your visual field.
Contact our eye doctors immediately if you notice a sudden shower of new floaters, a curtain or shadow in your vision, or a decrease in vision. If vision symptoms occur with weakness, trouble speaking, or severe new headache, call emergency services right away.
Frequently Asked Questions
Here are answers to common questions we hear from patients about floaters and flashing lights.
While floaters rarely disappear completely, they often become less noticeable over time as they settle below your line of sight or your brain adapts to ignore them. In some cases, floaters may actually break apart into smaller pieces that are less bothersome, though this process can take months to years. If floaters remain troublesome after six months and significantly affect your daily life, talk with us about your options.
Floaters are generally considered normal if they develop gradually, remain stable in number and appearance, and do not interfere with your vision or daily activities. Most people over 50 have at least some floaters as a result of natural aging changes in the vitreous gel. However, any new onset of floaters warrants an evaluation to ensure your retina is healthy, even if the floaters seem mild or match the description of normal floaters.
Eye strain and computer use do not cause floaters to form, though they may make you more aware of floaters that are already present. Staring at bright screens or white backgrounds can make existing floaters more visible, but these activities do not damage your vitreous or create new floaters. If you notice floaters for the first time while using a computer, it is likely coincidental, but you should still have your eyes examined to rule out retinal problems.
Flashes from the eye are usually brief arcs or streaks in one eye and often occur with eye movement. Migraine aura usually causes shimmering, zigzag lines that expand over 15 to 30 minutes and are seen in both eyes, even when each eye is covered separately. Any new or unusual symptoms should be evaluated promptly, and if you develop visual changes along with severe headache, scalp tenderness, or jaw pain after age 50, seek urgent medical care.
You should contact our eye doctors within 24 hours if you notice new floaters, especially if they appear suddenly or in large numbers. If new floaters are accompanied by flashing lights, vision loss, or a shadow in your vision, seek care immediately rather than waiting for a scheduled appointment. We reserve same-day slots for these urgent situations because early detection and treatment of retinal tears can prevent vision loss.
It is common to develop additional floaters as you continue to age, since the vitreous gel undergoes ongoing changes throughout your life. However, each new onset of floaters should be evaluated to ensure they are not associated with retinal problems, even if you have had harmless floaters in the past. Think of each episode of new floaters as a new event that requires assessment, not simply a continuation of your previous floaters.
Getting Help for Flashing Lights and Floaters at ReFocus Eye Health Meriden
If you are experiencing new floaters or flashing lights, we encourage you to contact us promptly for an evaluation. Early detection of retinal problems can make treatment more effective and help preserve your vision.
At ReFocus Eye Health Meriden, on South Broad, our experienced eye doctors are here to provide the thorough, compassionate care you deserve. We understand how concerning these symptoms can be, and we are committed to protecting your sight for years to come.
Calming atmosphere, friendly and kind staff who explained any questions, prompt attention, doctor receptive to questions. Overall, a pleasant and friendly experience.
Jane Haffner
Awesome staff and facility! We love going here for our eye care.
Cortnie Guerrero
Wonderful experience with cataract surgery by Dr. Hall. Beth was great in scheduling, and Erica was so kind at post-op visits. I’m grateful for their care and highly recommend this group!
nellies rivera
I am so grateful to have Dr. Hall on my team of health care providers.
Brahim Abarkha
Dr. Ryan is very thorough and takes time to explain everything. Her assistant today was very pleasant. I hope she is still there at my next appointment.
Raymond Desrosiers
Contact Us
Tuesday: 8:30am-4:30pm
Wednesday: 8:30am-4:30pm
Thursday: 8:30am-4:30pm
Friday: 8:30am-4:30pm
Saturday: Closed
Sunday: Closed