Age-related macular degeneration
Mar 9, 2006 3:17 PM
An estimated 500,000 people in the UK suffer from AMD, 40% of these are over the age of 75.
What is AMD?
AMD is the most common form of macular disease, which
affects the central part of the retina. It is an age-related process and
usually develops after a person reaches 50 years.
It generally involves both eyes, although they may not be
affected at the same time or to the same degree. Some 90% of these cases are
dry AMD which cannot be treated but 10% are wet ADM. Dry AMD means visual cells
simply stop to function.Wet AMD is by far the most aggressive form of the
disease. The condition is caused by the growth of new blood vessels under the
centre of the retina. These can leak fluid, causing scar tissue to form and
destroying central vision in a period of between two months and three years. Peripheral
vision is retained. The condition causes problems reading, seeing small objects
and distorted vision.
What are the symptoms?
In the early stages of AMD, central vision may be blurred or distorted. Objects may take an unusual size or shape. This process can happen quickly or develop over several months. People with the condition may become very sensitive to light or actually see lights that are not there. There may be some discomfort, although overall the condition is not painful.

