Sunday, September 12, 2010

How to prevent age-related macular degeneration

by Dr Pandula Siribaddana

Age Related Macular Degeneration or ARMD is a common condition seen in the elderly population and can be named as one of the commonest causes of visual loss among the same age group. The condition is characterized by the gradual loss of central vision and could be recognized as having two major categories.

In one form, which is the ‘dry’ macular degeneration, the retina and the layer below in the back of the eye would be separated by cellular debris and in the second form, which is the ‘wet’ macular degeneration, the two layers will be separated by enlarging blood vessels under the retina. In both instances, the peripheral vision would be spared and therefore, these individuals would be able to carry out their daily activities, although the functions such as reading would be impaired to a significant extent.

How to prevent ARMD in the elderly?

The prevention strategies related to ARMD would include avoiding the risk factors which would cause the condition in the first place. Therefore, following prevention strategies can be named as the most useful in order to achieve better vision in the elderly age.
Control blood sugar levels

This has shown to have an influence in the manifestation of macular degeneration and since it is prevalent abundantly, adhering to good glycaemic control would be essential to reduce the disease burden of ARMD.
Avoid smoking

Among the many influences it makes on health, macular degeneration is one and therefore its avoidance would greatly help susceptible individuals to maintain better visual health. According to statistics, there seems to be a threefold risk among the smokers than in non-smokers to develop ARMD during the elderly life.
Control hypertension and cardiovascular diseases

Researchers have identified these two as influencing the occurrence of macular degeneration and controlling of the same would reduce the risk of ARMD in susceptible individuals.
Avoid direct sun light

Sun light, particularly the blue light in the sun’s rays, have shown to influence the functioning of the retina and thus can lead to the development of ARMD. Therefore, using special eye glasses and avoiding such exposure would be recommended for people whom are constantly at risk of being exposed.
Include carotenes in the diet

Carotenes containing foods or else supplements have shown to be effective to a certain extent in reducing the risk of macular degeneration and therefore steps should be taken to include such foods and to take a balanced diet as much as possible.
Add omega 3 fatty acids

Similar to carotenes, omega 3 fatty acids are suggested as being supportive in the prevention of ARMD and should be included in the diets of all ages.

Lastly, due to the fact that there are other factors which are not modifiable and may lead to the development of ARMD, it is always best to screen and initiate treatment as early as possible in order to prevent progression of the disease and to avoid the occurrence of complete blindness.

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