...

These are 3 simple and natural vision improvement techniques and ways that you can do to help reduce the strain on the eyes as well as increase your mood to stay more focused on day to day tasks. Stress and strain are one of the main causes of poor vision. Throughout our lives we tend to pick up habits that can potentially lead to putting more strain on our eyes so just changing a few bad habits can help to improve eyesight naturally.

We do not see them but we're exposed to them daily. Invisible rays known as ultraviolet (UV) rays that come from the sun are both beneficial and potentially hazardous.

UV rays are helpful in that they assist in the production of vitamin D that keeps our bones and teeth strong. They strengthen our immunity against diseases such as colon cancer. UV rays are also used to treat psoriasis - a distressing skin disease characterized by itchy patches.

On the other hand UV rays can be deadly since they can burn the eyes hair and skin especially if these parts are not properly protected. Too much sun exposure also leads to premature aging or photo aging - a condition marked by fine wrinkling dilation of capillaries and irregular pigmentation or liver spots. This is evident in people who sunbathe regularly. Many of them show signs of photo aging early in life before they reach 30 years of age. In contrast normal skin ages after 40 years or more.

The two kinds of UV radiation that affect the skin are UV-A and UV-B. Both can cause many serious conditions like skin cancer a weakened immune system premature aging and cataracts. UV-A rays are not absorbed by the ozone layer which is why they penetrate deep into the skin. This is responsible for premature aging. These rays are also present in tanning beds and sunlamps.