Taking care of your eyes should be a top concern for Americans no matter the time of the year, but especially during the hot summer months of June, July and August. Sunglasses provide one of the best sources of UV protection.
When choosing a pair of sunglasses, consider the UV filtering, lens color, comfort and price. In order to properly protect your eyes, choose sunglasses that over at least 95 percent UV protection. Also, choose a lens tint that blocks 80 percent of transmissible light, but no more than 90-92 percent of light because lens tint does not protect you from UV rays, and can affect your ability to see correctly.
There are three major types of sunglasses categories:
Cosmetic sunglasses – they normally block only 0-60 percent of visible light and UV rays between 87-95 percent. Because the lens tint is so low, they aren’t recommended for driving.
General purpose sunglasses – they block between 60-90 percent of light and between 95-99 percent of UV rays. They are great for driving and harsh sunlight.
Special purpose sunglasses – they block up to 97 percent of light and at least 99 percent of UV rays – great for the days you will be outside for long periods of time. Because they block so much light, they are not recommended for driving.
And keep in mind that finding a great pair of UV filtering sunglasses doesn’t mean you have to pay an arm and a leg – cheaper sunglasses can provide all the protection your eyes need – just be sure to check their label and ask the retailer questions when purchasing your pair.
There are several different types of sunglasses on the market today, but here are a few explained:
Regular lenses – they reduce the overall brightness of light
Polarizing Lenses – they cut the glare of reflection – perfect for driving or outdoor activities
Photochromic lenses – they turn up or down the intensity of light as you need it. For example, the lenses are lighter indoors, but turn darker when outside.
Mirror lesnses – Rather than absorb the light, mirror lenses actually reflect the light.