Diseases of our hole

With the evolution of the ozone hole are subject to more diseases, with that we were searching and find the meaning and prevent them. The decrease of the ozone layer, responsible for "filtering" of UV radiation, makes the risk associated with sun exposure is greater. We also noted that when the ozone hole started to rise, it is apparent that the world is much more rare, and

many people die because there is no cure for them! As one of the most common diseases, we have skin cancer. This disease is caused by the increase, related to greater exposure to solar ultraviolet radiation. We can verify that the children and the elderly are the age group most affected, since the thickness of your skin is less and its immune system, responsible for defending the body, which still is not fully functional.

What are the symptoms of skin cancer?

Appearance of a sign of black

Modification of an existing signal

Appearance of itching and soreness

Onset of bleeding

What types of treatment for skin cancer:

Surgery

Chemotherapy

Biological

Therapy

Radiotherapy

Favorable conditions for the appearance of skin cancer:

Freckled fair skin and

Blond or red hair

Blue or green eyes

Burn Easy

Tanning difficult

History of sunburn

Many signs around the body

Unlike the skin that partly fits to UV radiation (thick and tan), the human eye has no mechanisms for adaptation. As diseases of the eye, the outside world, we have mainly photokeratitis and fotocunjuntivite that may occur between 0.5 and 24 hours after prolonged exposure to intense solar radiation, often in highly reflective environments, such as the case of " of snow blindness. " Also the pterigium is a degenerative disease that affects the outside of the eyes. Studies also indicate the UV radiation is a risk factor in the development of human cataracts which result in increased opacity of the lens of the eye. The UV radiation induces the suppression of the immune system favoring the progression of infections caused by viruses, bacteria and fungos.Os eyes should be protected by sunglasses with UVA and UVB filters. According to the directive C. E. 89/686/EEC, the manufacturer should indicate the category of protection of the lens for visible light and ultraviolet. For general use is recommended for category 3, while for high risk activities such as mountaineering and water sports is recommended to category 4. Furthermore, due to the exposure side, it is recommended to use lateral protection in sunglasses. This recommendation is especially important for children because the transmission of UV radiation through the eyes is higher for children than for adults - the child's retina is less protected. Thus, it should use sunglasses that have UV protection filters.

The Pterigium is an increase in area occupied by pinguécula, proliferating by the triangular shape of the corneal surface, affecting the vision in more advanced cases, where it is necessary to its surgical removal. Ultraviolet radiation is related to the development of conjunctival degenerations.

Photokeratitis.

This effect occurs after exposure to intense ultraviolet radiation, with respect to the sun only in highly reflective environments such as snow or the beach. The welding arc can also cause the photokeratitis. The corneal epithelium absorbs mainly the UV-B radiation leaving clinically visible damage, causing red eyes, foreign body sensation, excessive tearing and increased light sensitivity. This problem resolves itself in a day or two usually without long term effects.

FOTOCONJUNTIVITE E FOTOCERATITE

Fotoceratite is an inflammation of the cornea. Fototoconjuntivite is an inflammation of the conjunctiva (the lining the inner surface of the eyelids and whites of the eyes). These inflammatory reactions are the burns of the conjunctiva. Usually appear within a few hours after excessive exposure to sunlight. The fotoceratite and fotoconjuntivite can be very painful, but are reversible and appear to result in problems of vision in the long term. Can easily be prevented with the use of sunglasses with UVA and UVB protection.

Cataract

A cataract is the leading cause of blindness in the world. It is estimated that 20% of cases are linked to excessive exposure to UV radiation emitted by the sun. A cataract is due to deposition of protein in the lenses of the eyes (lens) that loses its transparency, leaving the vision blurred. Comes in different degrees of intensity in most individuals, with age, but excessive exposure to UV radiation leads to accelerated this process. The cataract can be surgically removed and an artificial lens implanted to restore vision.

Pterygium

Corresponds to the growth of the conjunctiva on the surface of the eye. It is a common cosmetic problem, and some cases are related to prolonged exposure to the sun. The Pterygium can grow and cover the center of the cornea thus reducing the vision. He also has a tendency to become inflamed. Even after the surgical removal pterygium tends to appeal.