We all know that summer shades aren’t just about looking cool but they are there to help protect your eyes from the harmful ultra violet rays that are known to cause diseases like macular degeneration, cataract and other retinal diseases that can permanently reduce vision, even cause blindness. What if there were some down sides to wearing shades as well? Here are some things to think about before you put on your sunglasses.
UNDERSTANDING THE SUN
When we think of the effects of the sun on our eyes, it may be in a negative light. We may think about deteriorating retinas, muscular degeneration around the iris, or sunburned corneas. All of these are very real conditions that come from being in the sun, but there are also certain benefits that we can receive from being in the sun. Your body needs direct sunlight. Your eye should never be exposed to the sun but when you are outdoors wearing your sunglasses brief 10-15 minute exposure to indirect sunlight helps your body produces vitamin D and that good for your body.
PROS OF SUNGLASSES
When you choose a good set of sunglasses to protect your eyes from UV rays, make sure the lenses absorb 100% of the harmful rays 100% UV A and UV B. Your sunglasses should say 100 percent UV protected not things like bans rays, blocks harmful rays, look for 100%. Sunglasses are very important to use, especially when you are on the ski slopes or on a boat where sun is being reflected directly back into your eyes. Your eyes basically act like magnifying glasses and magnify that bring in large amounts of light which can cause serious damage. Sunglasses should always be worn for activities like this.
CONS OF SUNGLASSES
The only con of sunglasses is, if you are wearing a pair that does not absorb much UV light. In that case behind the dark lens the opening of your eye, the pupil enlarges behind the dark lens and you are inviting more of the harmful ultra violet light then would have come in to your eyes if you’re not wearing sunglasses at all. Please visit us at www.eyedoctordallas.com and visit your Dallas eye doctor every year. Photo Credit: http://www.flickr.com/photos/vegas/388116980/