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Age Related Macular Degeneration (AMD)Download Leaflet
Macular Degeneration
Relevant Information

Age-related macular degeneration (AMD)

is the leading cause of vision loss for

people over the age of 50 in the Western

world. It occurs when the delicate cells of

the macula – the small, central part of the

retina responsible for the centre of our

field of vision - become damaged and

stop working.


There are two types of AMD: the ‘dry’

formand the more severe ‘wet’ form.

Dry AMDis the more common, develops

gradually over time and usually causes

only mild loss of vision. The wet form

accounts for only 10-15% of all AMD but

the risk of sight loss is much greater.

Because macular degeneration is an

age-related process it usually involves

both eyes, although they may not be

affected at the same time.


Children and young people can also

suffer from an inherited form of macular

degeneration called macular dystrophy,

Sometimes several members of a family

will suffer from this condition and, if this

is the case, it is very important that their

eyes are checked regularly.


What are the symptoms?

AMD is not painful and never leads to total blindness because it is only the central vision that is affected. This means that almost everyone with AMD will have enough side (or peripheral) vision to get around and keep their independence.


In the early stages of AMD, central vision may be blurred or distorted and things may look an unusual size or shape. This may happen quickly or develop over several months, although if only one eye is affected it may not be noticed. People with AMD may become sensitive to light or find it harder to distinguish colours. The macula enables people to see fine detail so those with the advanced condition will often notice a blank patch or dark spot in the centre of their sight. This makes activities like reading, writing and recognising faces very difficult.


Who is at risk from AMD?

The cause of AMD is unknown but several factors appear to increase the risk. These include smoking, a high-fat diet and excessive sun exposure. Risk also increases with advancing age and may be more common in those with a family history of AMD. The incidence is higher among women and those with light skin or eye colour.  


How can your optometrist help?

Optometrists have an important role to play in detecting and monitoring AMD by checking your standard of vision and examining the macula for signs of the disease at routine eye examinations. If AMD is suspected, your optometrist may put drops into the eyes to widen the pupils and see more of the retina. Early detection is essential to treating some types of AMD. Your optometrist will advise you whether you need to be referred to a GP or hospital for medical advice. If your vision is affected, you may be given stronger glasses or special magnifiers to help you see better.   


What can be done?

There is currently no treatment for dry AMD but the wet form can be treated in several ways. Various forms of laser treatment may be used to halt or slow the progression of abnormal blood vessels and prevent further sight loss. These are simple procedures that can be carried out on an outpatient basis. Drugs are also becoming available for treating wet AMD, whether in the early or late stages. Trials are also taking place for new types of drugs and for combination therapies using drugs and laser treatment.


There is evidence that improving your diet by eating fresh fruits and dark green, leafy vegetables may delay or reduce the severity of AMD. Some studies show that taking nutritional supplements may be effective in slowing the progression of AMD although they do not prevent its initial development nor improve vision already lost (AMD Alliance).     


Where can I get more information about age-related macular degeneration?

Royal National Institute for the Blind

AMD Alliance International

College of Optometrists - Look after your eyes website

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