Treatments for dry age-related macular degeneration

There is no treatment that reverses dry AMD. There are, however, several things with real evidence behind them, and a good deal sold on no evidence at all. These are the questions people ask.

If it can't be reversed, is there any point?

Yes. The aim is to slow progression and to catch conversion to wet AMD early, and both of those genuinely change outcomes.

The most useful things available are not glamorous, but they work.

What is the single most effective thing I can do?

Stop smoking. It is not close.

Smoking is by a distance the biggest modifiable risk factor for AMD and for its progression. If you smoke and you take nothing else from this page, take that one.

Support to stop is far more effective than willpower alone — your GP can arrange it.

Should I be taking AREDS2 supplements?

Possibly, but not everyone should, and this is widely misunderstood.

The AREDS2 formulation reduces the risk of progression in people with intermediate AMD, or with advanced disease in one eye. In that group the benefit is real.

They do not help early AMD, and they do not prevent AMD in people who do not have it. If you are outside the group that benefits, you are buying an expensive placebo.

Worth checking which category you are in before committing to them long term. Ask at your next appointment.

One important caution: the original AREDS formulation contained beta-carotene, which increased lung cancer risk in smokers and former smokers. AREDS2 replaced it for exactly that reason. Check the label and make sure you are buying an AREDS2 formulation, not the older one.

Does diet make a difference?

Some, and it is sensible regardless.

Leafy green vegetables and oily fish are the components with the best evidence behind them. A Mediterranean-style diet is associated with lower progression rates.

Diet is worth doing. It is not a substitute for stopping smoking, and it is not a treatment.

If you are significantly overweight, losing some is worth doing too — obesity is associated with faster progression in people who already have dry AMD.

Do sunglasses help?

Probably, and they cost nothing to wear. UV and high-energy visible light are thought to contribute to retinal damage over a lifetime.

Wear sunglasses with proper UV protection in bright conditions. It is a small, sensible measure rather than a treatment.

What about all the supplements advertised online?

Be sceptical. Beyond the specific AREDS2 formulation in the specific group that benefits, the evidence for eye supplements is weak to absent, and the marketing is aggressive.

If something is sold on the promise of restoring vision lost to AMD, it is not doing that.

Is there any treatment for geographic atrophy?

This is the area that has genuinely changed.

Treatments targeting the complement system have been developed and are approved in some countries for geographic atrophy — the advanced form of dry AMD. They slow the rate at which the atrophy enlarges. They do not restore vision already lost.

Availability in Ireland is limited and evolving. Dr O'Regan will discuss what is currently accessible to you and whether you are a candidate.

What does monitoring actually achieve?

It catches conversion to wet AMD early, and that is where the real gain is.

Wet AMD is very treatable, but the outcome depends heavily on how quickly treatment starts. Someone who reports distortion within days does far better than someone who waits for their next routine appointment.

So the Amsler grid on the fridge, and checking each eye separately once a day, is not busywork. It is the most valuable thing in your control after stopping smoking.

What if my vision is already affected?

Low vision services, magnifiers, good task lighting and high-contrast reading aids make a real difference, and they are consistently underused.

Ask about them rather than waiting to be offered. People often assume these are for those with far worse vision than they have, and end up struggling unnecessarily for years.

If your vision affects your driving, that needs an honest conversation. It is one people put off, and it is better had early.

Next steps

Patients — contact the clinic to arrange an appointment.

GPs and optometrists — refer directly to Limerick or Ennis, including by Healthmail.