In short: Yes, partly. Family history is one of the strongest known risk factors for age-related macular degeneration, and having a parent or sibling with AMD raises your own risk. But it is not a guarantee: smoking, diet, blood pressure and regular eye exams all change how your risk plays out.
TL;DR
- Family history raises your risk but doesn’t guarantee AMD
- Key genes involved include CFH and ARMS2/HTRA1
- Genetic testing isn’t routinely recommended; a known family history serves much the same purpose
- Screening should often start earlier — in your 40s — if AMD runs in your family
- Smoking, diet and blood pressure meaningfully shape your outcome regardless of genetics
If a parent or sibling has been diagnosed with macular degeneration, it’s natural to wonder whether you’re next. The short answer is that genetics plays a real role in age-related macular degeneration (AMD) — but having a family member with the condition doesn’t mean it’s inevitable for you.
Below, we look at what the research actually says about the genetics of AMD, what a family history means for your own risk, and what you can do about it.
Does Genetics Play a Significant Role in AMD?
Age-related macular degeneration is considered a complex, multifactorial disease — meaning it’s shaped by a combination of genetic and lifestyle factors rather than a single inherited gene. That said, family history is one of the strongest known risk factors for AMD. Research has identified several genes associated with increased AMD risk, most notably variants in the complement factor H (CFH) gene and genes in the ARMS2/HTRA1 region, both involved in immune regulation and inflammation in the retina.
If you have a parent or sibling with AMD, your own risk is meaningfully higher than someone with no family history, and higher again if their AMD was advanced or diagnosed at a younger age.
Does That Mean I’ll Definitely Get It?
No. Genetics loads the dice, but it doesn’t decide the outcome on its own. Many people with a strong family history of AMD never develop the condition, or develop only a mild form that never significantly affects their vision. Conversely, some people with no known family history still develop AMD, particularly as they age. Genetic risk interacts with modifiable factors — most importantly smoking, diet, blood pressure and UV exposure — which means your own choices still matter even if your genetics stack the odds against you.
Family History or Genetic Testing: Which Matters More?
Genetic testing for AMD-associated variants exists, but it isn’t currently part of routine eye care. The American Academy of Ophthalmology doesn’t recommend it for the general population outside research settings. That’s largely because knowing you carry a risk variant doesn’t currently change your management in a meaningful way — the recommended response (regular monitoring, not smoking, a nutrient-rich diet, and AREDS2 supplementation if intermediate AMD develops) is the same whether your risk comes from a documented family history or not.
In practice, a documented family history does much the same job that genetic testing would: it tells your optometrist you’re higher-risk and should be screened accordingly.
What Should a Family History Change About Your Eye Care?
If AMD runs in your family, a few things are worth adjusting:
- Start regular AMD screening earlier — often from your 40s rather than waiting until 50 or 60
- Have dilated eye exams more frequently than someone at average risk, particularly once you’re past 50
- Pay closer attention to symptoms like distorted or wavy straight lines, which can signal a shift from dry to wet AMD
- Consider using an Amsler grid at home between exams to monitor your central vision
- Take modifiable risk factors — smoking above all — seriously, since they appear to compound genetic risk
What Other Risk Factors Matter?
Family history is significant, but it sits alongside several other well-established risk factors:
- Age — risk rises sharply after 50 and continues climbing with age
- Smoking — one of the strongest preventable risk factors
- Lighter eye colour and Caucasian ethnicity
- Cardiovascular disease and high blood pressure
- Obesity and a diet low in leafy greens and omega-3s
The practical takeaway is that AMD risk is rarely about genetics alone. Someone with a strong family history who doesn’t smoke, eats well and gets regular exams can meaningfully outperform their genetic risk — and someone with no family history who smokes and skips exams can still end up with advanced disease.
AMD Risk Factors at a Glance
| Risk Factor | Can You Change It? | What to Do |
|---|---|---|
| Family history | No | Start screening earlier; watch for symptoms |
| Age | No | Keep up with regular dilated exams after 50 |
| Smoking | Yes | Quit — one of the strongest preventable risk factors |
| Cardiovascular disease / high blood pressure | Partly | Manage it with your physician |
| Diet low in leafy greens & omega-3s | Yes | Eat more leafy greens, fish, and omega-3-rich foods |
| Lighter eye colour / ethnicity | No | Be aware it’s a contributing factor, not a cause on its own |
Frequently Asked Questions
If my mother has macular degeneration, will I also get it?
Not necessarily. Having a parent with AMD increases your risk, but it doesn’t guarantee you’ll develop the condition. Many people with an affected parent never develop significant AMD, especially if they don’t smoke and stay on top of regular eye exams.
What is the root cause of macular degeneration?
There isn’t a single root cause. AMD develops from a combination of genetic susceptibility (particularly variants in genes like CFH and ARMS2/HTRA1), aging changes in the retina, and lifestyle factors such as smoking, diet and cardiovascular health. It’s considered a multifactorial disease rather than one with a single trigger.
Can macular degeneration skip a generation?
It can appear that way, since carrying genetic risk doesn’t guarantee the disease will develop — someone can carry risk variants without ever showing symptoms, while a later generation with the same variants might. This isn’t true “skipping” in a strict genetic sense, but reflects how genetic risk interacts with lifestyle and age.
Should I get genetic testing for macular degeneration?
Most eye care providers, including the American Academy of Ophthalmology, don’t currently recommend routine genetic testing for AMD, since a positive result generally wouldn’t change your recommended care. A known family history typically prompts the same response — earlier and more frequent screening — that genetic testing would.
At what age should I start getting screened if AMD runs in my family?
General guidance recommends AMD screening from age 50, but many optometrists recommend starting earlier — often in your 40s — if you have a parent or sibling with AMD, particularly if their disease was diagnosed at a younger age.
Book an AMD Screening with Dr. Della Chow
A family history of macular degeneration is a reason to be proactive, not anxious. Regular eye exams in Vancouver are what turn genetic risk into something manageable — catching changes while they’re still easy to monitor, rather than after they’ve affected your vision.
Book your appointment with Dr. Della Chow, your optometrist on Broadway in Vancouver — Kitsilano’s boutique optometry clinic, trusted by local families for over 25 years.
Call 604-742-3937 to speak with our team, or book your appointment online.
This article is for general education and is not a substitute for a professional eye examination or personalised medical advice. If you have concerns about your eyes or vision, book an appointment with your optometrist.
