Proper sunglasses are a key to guarding your eyes from sun-related damage. A number of scientific studies indicate that spending long hours in the sun without eye safety can damage your eyes by causal to cataracts and growths on the eye, including cancer.
Long-term contact to UV rays can damage the eye’s surface as well as its internal structures, sometimes causing cataracts and macular degeneration.
Sunglasses Protect Your Eyes
Whenever you buy a sunglasses don’t be misled by color or cost. The skill to block UV light is not reliant on on the darkness of the lens or the price tag. Both plastic and glass lenses absorb some UV light. Try to buy sunglasses that are labeled as blocking 99-100% of UV rays. Some manufacturer’s labels say UV absorption up to 400nm. This is the same thing as 100% UV absorption.
Sunglasses should shade out 75-90% of visible light. To see if a pair is dark enough, try the glasses on in front of a mirror. If the eyes can be easily through the lenses, they are too light.
Polarized lenses cut replicated frown when sunlight recoils off smooth surfaces like pavement or water. These can be helpful when driving or out in the snow. Polarization is unconnected to UV protection, so you still need to confirm UV absorption of the lenses.
Wraparounds offer added safety. Sunglasses that wrap around the temples avert the sun’s rays from entering from the sides. UV rays enter around standard sunglass frames to reduce the defensive benefits of the lenses.
These thin layers of numerous metal coverings can decrease the amount of visible light entering the eyes. They are prevalent in high-glare environments and when joint with the cape around feature, they can even provide added safety to the skin surrounding the eye area. UV protection, however, is not guaranteed & Sunglasses Protect Your Eyes.
To check for inadequacies in the lenses, hold the glasses at arm’s distance and then look through them at a straight line in the distance. Slowly move the lens across the line. If the straight edge misrepresents, curves or moves, the lens is faulty & Sunglasses Protect Your Eyes.
This is a type of lens that inevitably darkens in bright light and becomes lighter in low light. Although photochromic lenses may be good UV-absorbent sunglasses and again, the label must specify this. It can take a few minutes for them to regulate to different light conditions & Sunglasses Protect Your Eyes.