Sunglasses: Not just for looks
By Dr. Stephanie Goei Ophthalmologist, MCGHealth Eye Center

Commonly viewed as a trendy accessory, sunglasses also limit exposure to harmful ultraviolet rays. Unfortunately, most people are more concerned with how stylish their shades are and how they fit their face than the amount of protection provided. Your eyes are extremely vulnerable on sunny days. Sun damage can lead to cataracts and other permanent eye damage that causes vision loss. It is important to wear sunglasses whenever outdoors, even when it is cloudy as ultraviolet rays can still have a damaging effect on your eyes. I recommend following these selection tips before purchasing a new pair of sunglasses:

Lenses: Make sure that lenses have 99 to 100 percent of both UVA and UVB protection, and that they block more than 80 percent of transmissible light. The darker the lens does not necessarily mean the greater the protection. If dark shades do not have UVA and UVB protection, they can actually be more deleterious than wearing NO sunglasses. The dark shading causes your pupil to dilate, allowing more light to enter the eye without having the proper filter. Polarized lenses work great to reduce the glare from reflective surfaces, such as the surface of a lake or the hood of a car. They improve optical quality, but are not as essential as the UVA and UVB protection. Also, check lenses regularly to ensure that the color of one perfectly matches the color of the other, and that each is free of distortion and imperfection.

Frames: The style of the frames is not necessarily important. What matters most is that they block rays from entering the eye from the sides, top and bottom of the lenses. To go a step further, use wraparounds or side shields for added protection. Wide frames provide the best defense for your eyes.

Price: Sunglasses do not have to be expensive to be effective. What matters more than price is that they provide the needed protection for your eyes. However, be cautious when buying sunglasses from vendors or off the street as they may not have the needed amount of protection or may have misleading protection labels.

Fit: Make sure sunglasses fit properly and close to your face. This reduces the amount of sunlight that can reach your eyes.

For Children: It is never too early to start protecting your child's vision. Avoid toy sunglasses, they are great for dress up but have little use for sun protection. Choose sunglasses with polycarbonate lenses for children as they are shatter proof and can withstand the energetic nature of a child. Make sure children like their shades and they are comfortable. Children are also more likely to follow your example. Be a role model by wearing sunglasses yourself.

It is okay to want to wear cool shades. Sunglasses can be for looks - if you first make sure they will also protect your ability to see.