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Drusen are tiny, yellowish-white deposits that accumulate under the retina, specifically beneath the retinal pigment epithelium (RPE) layer. They are common, non-harmful deposits found in most people over the age of 50.
read more about drusen ...Drusen formation is caused by the age-related accumulation of cellular waste products and debris that the RPE cells fail to clear fully. These deposits accumulate in the Bruch's membrane, the barrier between the retina and the choroid (the vascular layer). They are typically located in the macula. Their presence signifies early biological changes in the aging process of the eye.
Drusen disrupt the flow of nutrients and waste between the photoreceptors and the underlying blood supply (choroid). Small drusen are harmless, but large, soft drusen can push up the RPE and photoreceptors, causing subtle visual changes and signaling a high risk of progression to Age-Related Macular Degeneration (AMD). This disruption can lead to the death of the overlying photoreceptors. The interference with the retinal nutrient supply is the reason drusen are tracked closely.
Drusen are classified by size and hardness. Hard drusen are small and compact, carry a low risk, and are often ignored. Soft drusen are large, fuzzy, and confluent (run together), carrying a high risk of progressing to advanced, sight-threatening AMD. The eye doctor monitors the size and number of these deposits using specialized imaging.
Diagnosis is made during a extensive dilated eye exam using an ophthalmoscope. Advanced imaging such as Optical Coherence Tomography (OCT) provides high-resolution cross-sectional images that precisely measure the size and location of the drusen deposits beneath the retina.
Management strategies for large, soft drusen involve nutritional intervention. High-dose AREDS 2 vitamin supplements are recommended to slow the progression of drusen to advanced AMD. Lifestyle modifications, such as stopping smoking and wearing UV/blue light protection, are also necessary.
No, small, hard drusen are common and harmless. Large, soft drusen are serious because they increase the risk of AMD.
No, there is currently no effective treatment to remove drusen deposits.
Yes, smoking is a major risk factor that dramatically increases the risk of progressing from drusen to advanced AMD.
If you are over 50, a yearly dilated eye exam is essential to monitor for drusen. While hard drusen are part of normal aging, "soft drusen" are the hallmark of Age-Related Macular Degeneration (AMD). A doctor will use OCT imaging to track if these deposits are leading to vision loss.
AAO. What are Drusen? (aao.org). 2024.
National Eye Institute. Macular Degeneration (nei.nih.gov). 2024.
Mayo Clinic. AMD Symptoms (mayoclinic.org). 2024.
StatPearls. Age-Related Macular Degeneration (ncbi.nlm.nih.gov). 2024.