Ultraviolet (UV) light is electromagnetic radiation of wavelengths that is present in sunlight. It is just one form of radiation that we are all familiar with. It does not reach the earth’s surface, but we still need to take precautions.
Undetectable to the human eye, UV rays are extremely dangerous to almost all parts of our eyelids, to the ocular structures.The rays not only affect our eyes, but even cause many different types of skin cancers as well. You need protection from UV rays on both sunny and cloudy days, since up to 80% of the sun’s rays can get through light clouds, mist, and fog.
The ozone layer in the earth’s atmosphere shields us from the sun’s dangerous ultraviolet rays. However, the emission of specific chemicals over time has led to its deterioration. As the ozone layer becomes thinner, more UV radiation penetrates the earth’s surface.
Cloud cover can greatly affect the amount of UV radiation that reaches the earth’s surface. Clouds that are dark and full of water can absorb up to 80% of the radiation. High thin clouds do not absorb much UV radiation.
On the other hand, scattered clouds can actually increase the amount of UV radiation at the surface of the earth because of reflection. The intensity of UV radiation also depends on which pressure system is influencing the weather. A high-pressure area causes a thinner ozone layer, while a low-pressure area causes a thicker ozone layer.
Many countries have acknowledged this issue and have implemented measures to prevent further harm to the ozone layer. These efforts primarily concentrate on regulating the creation and usage of chemicals known to harm the ozone layer.
UV radiation from the sun reaches its peak at solar noon. At this time, the sun’s rays have the least distance to travel through the atmosphere, increasing the intensity of UV. This is why it is necessary to stay inside during the afternoon hours, as this is when the sun’s rays are very strong.
Despite the fact that our eyes have a natural defense mechanism, it is insufficient to shield them from the damaging effects of UV rays. We can take extra steps to protect our eyesight with the right opticals from Vasan Eye Care Hospital. Our aim is to provide you with the best world-class eye care, and be your one stop hospital to help with all your eye care needs.
Vasan Eye Care Hospital has polarized lenses to help block the UV Rays that can be harmful for our eyesight. UV blocking lenses are also available at Vasan Eye Care Hospital, along with other options that have been designed with the intention of protecting your eyes.
