Age-related macular degeneration is the most common form of visual impairment in the UK and throughout the developed world. It is a disorder that affects the macula, which is a part of the central retina. The condition develops in one or both eyes and often begins with small distortions in vision and then advances to a state in which there is no central vision at all. The disorder can affect younger people in rare cases but it is most commonly found in the older population.

What are the symptoms?

There are two types of age-related macular degeneration - wet and dry.  'Wet' is the more aggressive disorder and it involves a build-up of fluid under the retina.  On the other hand, 'dry' is more gradual loss of central vision.

How do doctors describe it?

An optometrist will diagnose which type you age-related macular degeneration a person is suffering from.  People with this condition will find it difficult to read, recognise people or drive. Common symptoms of the condition include difficulty watching television, distortion of vision - straight lines appear wavy or you may become sensitive to light.

What causes it?

There is no known cause for age-related macular degeneration but there are a number of risk factors that are associated with the disease.  Age, gender, genetics, smoking, sunlight and nutrition have all been linked to the disorder.