Ultraviolet radiation is not only harmful to the skin, but to the eyes as well. Though the sun is more than 93M miles away from us, it is close enough to damage our sight. In case you didn't know, there are two kinds of UV radiation (UV-A and UV-B) that can penetrate even the ozone layer that shields our planet.
Overexposure of the eyes to solar radiation can lead to photokeratitis, which is a sunburn of the eye. The symptoms of this disease include: red eyes, excessive tearing, sensitivity to light, and a sensation of dust in the eyes. Though eye disease is thought to be cumulative, overexposure to UV radiation can also lead to the same
degree of damage.
Here are several tips to help you buy the
right sunglasses to protect you eyes from UV radiation. First, procure glasses that block 100% both the UV-A and UV-B. Second, make sure that the tint of the lenses is uniform. It is advisable to choose colors such as gray, brown, and green. Third and last, always wear hats when going directly under the sun.
