Posted by: Northwest Eye in drusen on June 11, 2025
What drusen are and where they occur
Drusen are yellow deposits under the retina made of lipids and proteins. The retina is the light-sensing layer at the back of your eye. Retinal drusen form beneath that layer, while optic disc drusen form within the optic nerve head.
Retinal drusen and optic disc drusen are different conditions, even though they share a name. Retinal drusen are often discussed in relation to age-related macular degeneration, also called AMD. Optic disc drusen are not the same finding and need a different evaluation.
Small drusen are common in people age 50 and older and can occur without AMD. Small, hard drusen are generally a normal part of aging and usually pose low risk. The size, type, number, and location matter more than the word “drusen” by itself.
Optic disc drusen have different patterns from retinal drusen. Optic disc drusen are present in 0.3% to 2% of people, either as an isolated finding or sometimes in families. One estimate places optic nerve drusen in about 1% to 2% of the U.S. population, while another places the rate at 1.8% to 2.4%.
About 87% of people with optic disc drusen have visual field defects, which can include a large blind spot. These figures apply to optic disc drusen, not deposits beneath the retina. If an eye report mentions drusen, ask which location the finding describes before drawing conclusions about your eye health.
Which drusen features raise AMD risk
AMD risk depends on drusen size, number, type, and nearby pigment changes. Larger, soft, numerous, confluent, or pigment-associated drusen carry greater risk of AMD progression. Larger or more numerous drusen are associated with early or intermediate AMD and may indicate an increased risk of vision loss.
Drusen may appear as separate deposits or join into patches, so the pattern seen on retinal images adds context beyond a simple count of deposits.
Drusen occur naturally with age, but the exact relationship between drusen and degenerative macular disease is not clear. Having drusen does not guarantee vision-threatening AMD or significant vision loss. Many people remain stable for years or maintain excellent vision.
Risk assessment also includes factors beyond the appearance of the deposits. Smoking is a modifiable AMD risk factor and increases AMD risk two- to fourfold. Genetic variants, family history, and late AMD in the other eye are associated with increased AMD risk or progression risk.
Drusen size is one part of the classification used to describe retinal findings. The cited AREDS definitions classify drusen by largest diameter: small is less than 63 µm, intermediate is at least 63 µm but less than 125 µm, and large is at least 125 µm.
In the AREDS classification, category 2 includes extensive small drusen, nonextensive intermediate drusen, or pigment abnormalities in at least one eye. These categories describe combinations of findings; they do not tell you your personal future without the rest of your examination.
The cited AREDS data show why clinicians consider the pattern in both eyes. At 5 years, progression to advanced AMD was approximately 18% among people with intermediate AMD, 6.3% among people with large drusen in one eye, and 26% among people with multiple large drusen in both eyes.
They are not a calculation of your own risk from the word “drusen” alone. Your eye doctor uses the examination, retinal images, medical history, and the condition of your other eye to interpret the finding.
How drusen may affect your vision
Drusen alone usually do not cause noticeable symptoms, and many people do not know they have them until an eye examination. Drusen are not visible to the naked eye. A routine examination may find them before you notice any change in vision.
When drusen are associated with AMD, symptoms may include:
- Blurred vision.
- Difficulty seeing in dim light.
- Wavy lines in central vision.
- A blurred spot in central vision.
These symptoms can have more than one possible cause. New central distortion or a new dark spot needs the prompt-care response described later in this guide.
Drusen are typically related to aging and are commonly found in people age 50 and older.
For a person with a few small drusen, the chance of losing some central vision from AMD over a five-year timeframe was only a few percent. For certain people with many intermediate and large-size drusen, the chance may be as high as 50% over the same five-year timeframe. The groups and findings differ, so these figures should not be applied to your eyes without an examination.
In the AREDS classification, category 3 includes large drusen, extensive intermediate drusen, or noncentral geographic atrophy in at least one eye.
Over time, up to 70% of patients with optic disc drusen may develop some decrease in peripheral vision, which is typically mild.
That finding belongs to optic disc drusen, not retinal drusen beneath the retina. The location in your examination report helps determine which symptoms and follow-up plan apply.
How an eye doctor finds and evaluates drusen
An eye-care professional can detect drusen during a dilated eye examination, and drusen are not visible to the naked eye. Dilation gives the clinician a view of the retina and the area beneath it. The examination helps show whether the finding is beneath the retina or near the optic nerve.
The evaluation looks beyond whether deposits are present. Your eye doctor considers their size, number, type, location, and any associated pigment changes. Those details help determine whether you need routine observation, closer monitoring, or evaluation for AMD.
OCT produces high-resolution images of the retina and can often detect early drusen before they are evident on a clinical examination. OCT uses light to show retinal layers and can help track structural changes over time.
Fundus photography produces two-dimensional retinal images, while OCT produces three-dimensional images showing retinal layers. The tests can complement each other by giving your eye doctor different views of the same area.
The OCT light beam is painless, and images are taken after dilation while you hold still for several seconds.
If you have large drusen, your ophthalmologist may recommend an Amsler grid to check for wavy, blurry, or dark areas in your vision. Use the grid only in the way your ophthalmologist explains, and report a new change promptly.
What treatment can and cannot do
There is no treatment that removes drusen themselves. Treatment generally addresses associated AMD when appropriate. Trying to eliminate the deposits is not the same as treating the retinal condition that may be associated with them.
Small drusen may need observation rather than a procedure. Larger or more numerous findings may call for closer monitoring, especially when pigment changes or other signs of AMD are present. The examination determines which situation applies to you.
For early AMD, no treatment currently exists, and your eye-care professional may recommend a comprehensive dilated eye exam at least once a year. The purpose of follow-up is to assess whether the condition is advancing and whether the monitoring plan should change.
An annual exam is not the right interval for every finding. Some people need review more often, while others with less extensive findings may have a longer interval. The next section explains how examination findings can affect that timing.
When supplements and daily habits may help
AREDS or AREDS2 supplements may help people with intermediate AMD or late AMD in one eye, but they do not help people with only a few small drusen and should not be started solely because drusen are present. The supplement decision depends on the AMD findings, not on the deposit alone.
Certain high-dose vitamins and minerals can slow progression for people with intermediate AMD or late AMD in one eye. The original AREDS trial found that the combination reduced the risk of late AMD by 25%. That result applies to the studied AMD groups, not to everyone with small drusen.
Because nutritional supplements can have health risks, discuss the vitamins and minerals with your ophthalmologist and primary care doctor before starting them. A clinician can consider your eye findings, other health conditions, and medicines.
Daily habits can support AMD risk management. Exercise, avoiding smoking, and eating nutritious foods are associated with lower AMD occurrence and may help people with AMD keep their vision longer.
A healthy diet includes dark leafy greens and colorful fruits and vegetables. Fatty fish may also lower AMD risk.
Most people over age 60 are more likely to develop drusen, which can be an early sign of macular degeneration. In the AREDS classification, category 1 means no drusen or only nonextensive small drusen in both eyes. Ask your eye doctor how your findings fit into the broader examination rather than using age or diet alone to judge risk.
How follow-up timing depends on the findings
Follow-up timing depends on your examination findings. People with few small hard drusen might need exams every one to two years, while people with numerous soft drusen or other risk factors typically benefit from exams every six to twelve months.
Your report may describe features that place you closer to one of these follow-up ranges. Use the interval your eye doctor gives you, because the plan depends on both eyes and on changes seen during the examination.
Numerous medium drusen, any large drusen, or macular pigment changes may warrant an exam every 6 to 12 months, often with OCT. One clinical source lists exams every 12 to 24 months for few small hard drusen without pigment changes, and every 6 to 12 months, often with OCT, for numerous medium drusen, any large drusen, or macular pigment changes.
In a 10-year follow-up, approximately 15% of people with small or no drusen at baseline developed large drusen. That figure describes a group over a defined period; it does not determine how your own findings will change. Keep scheduled follow-up even when your vision feels unchanged.
When new vision changes need prompt care
New central distortion or a new dark spot in your vision warrants calling promptly for an urgent visit. Do not wait for a routine follow-up interval when either change appears.
Write down when the change began and whether it affects one eye or both, then contact an eye-care professional promptly. Routine follow-up is appropriate only when your examination plan supports it and you have no new concerning change. If a change is sudden or concerning, or you are unsure whether it is urgent, contact a qualified eye-care professional or the responsible authority promptly rather than waiting for routine follow-up.
Choose the right next step for your eye finding
The right next step depends on where the drusen are located, how large and numerous they are, whether pigment changes are present, and whether your vision has changed. A stable finding may call for planned monitoring, while new central distortion or a new dark spot calls for prompt eye care.
A qualified eye-care professional decides what your individual result means and whether you need additional testing or treatment.
What is different about optic disc drusen?
Are retinal drusen and optic disc drusen the same thing?
No. Retinal drusen are deposits beneath the retina and are often considered in relation to AMD. Optic disc drusen are deposits within the optic nerve head and require a different evaluation. Check which type your eye report describes before interpreting symptoms, risk, or follow-up recommendations.
Do drusen need to be removed or treated?
Drusen themselves are not removed with treatment. Care usually focuses on watching for associated AMD and managing that condition when appropriate. Small drusen may only need observation. AREDS or AREDS2 supplements may help certain people with intermediate AMD or late AMD in one eye, but do not start them solely because drusen are present.
How often should I have an eye exam if I have drusen?
The interval depends on the size, number, type, pigment changes, and other findings in both eyes. People with few small hard drusen might need exams every one to two years, while more extensive findings may call for visits every six to twelve months, often with OCT. Follow the schedule your eye doctor recommends.
When should I seek prompt care for a vision change?
Call promptly for an urgent eye visit if you develop new central distortion or a new dark spot in your vision. Do not wait for a routine appointment when either change appears. Note when it began and whether it affects one eye or both, then contact an eye-care professional.
