Understanding Risk Factors
Age-related macular degeneration, as the name suggests, is closely linked to age. The risk increases significantly from the age of 50, and the probability continues to rise with each subsequent decade. However, age alone does not determine if or when AMD occurs. The disease is multifactorial, meaning that a variety of factors work together, some of which are unchangeable, while others are very much within our control.
Non-modifiable risk factors include, in addition to age, genetic predisposition and ethnicity. People with fair skin and light-colored eyes have a statistically higher risk of AMD. A family history of the disease—if parents or siblings have AMD—also significantly increases individual risk. These factors cannot be changed, but they make it all the more important to take the modifiable risk factors seriously.
Modifiable risk factors that can be influenced by one 's own lifestyle include smoking, diet, UV exposure, obesity, high blood pressure, and lack of exercise. The good news is that each of these factors offers a starting point for reducing personal AMD risk. The following sections explain the most important measures in detail.
Nutrition: What’s Good for Your Eyes
A balanced, antioxidant-rich diet is a cornerstone of AMD prevention. The retina, especially the macula, has a high metabolic rate and is particularly susceptible to oxidative stress. Certain nutrients can help protect the cells from damage. The large-scale Age-Related Eye Disease Studies (AREDS 1 and 2) have shown that a combination of specific vitamins and minerals can slow the progression of AMD in certain stages.
Key nutrients for eye health include:
- Lutein and Zeaxanthin: These carotenoids are found in high concentrations in the macula and act as a natural blue light filter. Good sources are dark green leafy vegetables like spinach, kale, and broccoli.
- Vitamins C and E: These powerful antioxidants protect cells from free radicals. They are found in citrus fruits, berries, peppers, nuts, and seeds.
- Zinc: This trace element is an important component of many enzymes in the retina. It is found in meat, fish, legumes, and whole grains.
- Omega-3 Fatty Acids: These polyunsaturated fatty acids have anti-inflammatory properties and are important for retinal structure. They are primarily found in fatty cold-water fish such as salmon, mackerel, and herring.
A diet rich in fruits, vegetables, and whole grains, supplemented with regular fish consumption, provides a good foundation. In consultation with an ophthalmologist, taking specific dietary supplements based on the AREDS2 formula may be advisable for individuals with an increased risk or an existing intermediate stage of AMD.
Smoking Cessation: The Most Effective Single Step
Smoking is the most significant modifiable risk factor for developing AMD. Smokers have a two to three times higher risk of developing AMD than non-smokers. The toxic substances in tobacco smoke promote oxidative stress and inflammation throughout the body, including the sensitive cells of the retina. Additionally, smoking impairs blood circulation, which can lead to an undersupply of nutrients to the eye.
Quitting smoking is the single most effective measure to reduce your personal AMD risk. The positive effects are noticeable even years after quitting. The risk of developing AMD decreases, and for patients who already have the disease, quitting can slow its progression. There are many support services available, from medical advice to cessation programs, that can help you on your path to becoming smoke-free.
UV Protection for the Eyes
Just as we protect our skin from the sun, our eyes also need protection from harmful ultraviolet (UV) radiation. Long-term, unprotected exposure to sunlight is a recognized risk factor for the development of both cataracts and AMD. UV rays can generate free radicals in the retina and accelerate cellular aging processes.
Consistent sun protection is therefore essential. Wear high-quality sunglasses with certified 100% UV protection (UVA and UVB) whenever you are outdoors, even on cloudy days. A wide-brimmed hat or cap provides additional protection. This is especially important in environments with high reflection, such as at the beach, in the snow, or on the water.
Exercise and Cardiovascular Health
What is good for the heart is also good for the eyes. Regular physical activity promotes a healthy blood circulation and helps maintain a stable blood supply to the retina. Studies have shown that physically active individuals have a lower risk of developing AMD. Exercise also helps regulate blood pressure and prevent obesity, both of which are also risk factors for AMD.
The World Health Organization (WHO) recommends at least 150 minutes of moderate-intensity endurance activity per week, such as brisk walking, cycling, or swimming. The key is to find an activity you enjoy and can integrate into your daily life. Even small changes, like taking the stairs instead of the elevator, can make a difference.
Regular Eye Check-ups
Early detection is crucial for the successful treatment of AMD. Since the disease often causes no symptoms in its early stages, regular check-ups with an ophthalmologist are essential for prevention. From the age of 50, it is advisable to have your retina examined preventively every one to two years. For individuals with a known family history of AMD or other risk factors, more frequent checks may be necessary.
During the examination, the ophthalmologist can detect early signs of AMD, such as drusen (small deposits under the retina), long before they affect your vision. Modern imaging techniques like optical coherence tomography (OCT) allow for a highly detailed, layer-by-layer visualization of the retina, enabling the detection of even the smallest changes. Early diagnosis allows for timely intervention and can help slow the progression of the disease.
Self-Monitoring at Home
In addition to regular professional check-ups, you can actively monitor your vision at home. A simple and effective tool for this is the Amsler grid. This simple test grid consists of a pattern of uniform lines with a dot in the center. If you look at the grid with one eye and perceive distorted, wavy, or missing lines, this may indicate changes in the macula.
Ophthalmologists recommend performing the Amsler grid test regularly—ideally once a week, under the same conditions each time (same distance, same lighting, with reading glasses if applicable). Test each eye individually by covering the other eye. Record your observations to better detect changes over time.
It is important to understand that the Amsler grid test cannot replace an ophthalmological examination. It is a screening tool primarily intended to detect sudden changes early. If you notice new distortions or other abnormalities during the test, you should see an ophthalmologist promptly—even if your next regular check-up is still some time away. On our website, you will find an interactive Amsler grid self-check, which you can perform directly on the screen.
Looking Ahead: New Therapeutic Approaches
Prevention forms the foundation, but research is working intensively on new therapeutic approaches that go beyond mere prevention. For patients with dry AMD, for whom there were long few treatment options, promising developments are emerging.
A particularly innovative approach is Photobiomodulation (PBM). In this procedure, the retina is irradiated with light of specific wavelengths to stimulate cellular energy production in the mitochondria. Clinical studies have shown that PBM can improve visual acuity and reduce drusen volume. In January 2025, the FDA in the USA approved a PBM device for the treatment of dry AMD for the first time—a significant milestone.
In Germany, the MACULIGHT study is currently being conducted, which is the first to investigate the effectiveness of photobiomodulation for in-home use. This study, funded by the Federal Ministry of Education and Research, could pave the way for broader availability of PBM therapy. If you would like to learn more about this approach, you will find detailed information on our Photobiomodulation topic page.
Unabhängig davon, welche neuen Therapien in Zukunft zur Verfügung stehen werden: Die hier beschriebenen Vorsorgemaßnahmen bleiben die Grundlage jeder AMD-Behandlungsstrategie. Eine gesunde Ernährung, Rauchverzicht, UV-Schutz, regelmäßige Bewegung und konsequente augenärztliche Kontrollen sind Maßnahmen, die Sie heute umsetzen können – und die Ihre Augengesundheit langfristig unterstützen.
Photobiomodulation: A New Therapeutic Approach for Dry AMD
Learn how light therapy could support the cellular energy supply of the retina and which studies are investigating its effectiveness in dry AMD.
Learn moreSources and Further Reading
- AMD-Netz e.V. Risikofaktoren und Vorbeugung bei AMD. amd-netz.de
- Carneiro A, Andrade JP. Nutritional and Lifestyle Interventions for Age-Related Macular Degeneration: A Review. Oxidative Medicine and Cellular Longevity. 2017. PMC5244028
- Saigal K et al. Modifiable Lifestyle Risk Factors and Strategies for Slowing Age-Related Macular Degeneration. Nutrients. 2025. PMC11946629
- Williams PT. Prospective Study of Incident Age-Related Macular Degeneration in Relation to Vigorous Physical Activity during a 7-Year Follow-up. Investigative Ophthalmology & Visual Science. 2009;50(1):101–106. PMC4090325
- PRO RETINA Deutschland e.V. Altersabhängige Makula-Degeneration und Ernährung. pro-retina.de
- Age-Related Eye Disease Study 2 Research Group. Lutein + Zeaxanthin and Omega-3 Fatty Acids for Age-Related Macular Degeneration: The AREDS2 Randomized Clinical Trial. JAMA. 2013;309(19):2005–2015. JAMA
- American Academy of Ophthalmology. FDA Authorizes Light Therapy for Dry AMD. Januar 2025. aao.org