First up in our "Heat index" your sunglasses may not be providing the protection you think and could even be doing more harm than good when it comes to your skin. Dermatologists say certain sunglasses... See More
First up in our "Heat index" your sunglasses may not be providing the protection you think and could even be doing more harm than good when it comes to your skin. Dermatologists say certain sunglasses could make your face age more quickly. Well, this is just great. ABC's Abbie Boudreau has the story. ? Reporter: Sunglasses and style go hand in hand. But is it true some sunglasses can actually give you wrinkles? That's what dermatologist Dr. Rosemarie Ingleton says will happen if you wear the wrong pair. If your sunglasses are letting in too much life you're forced to squint to protect your eyes. The more squinting action, the more likely it is that you're going to end up with wrinkles in the creases of your eyes. Reporter: She says it's best to wear large uv tinted sunglasses to protect against wrinkles and sun spots. Find a pair where the sides are wider and wrap around your face to block out harmful light rays. Always remember to use subscreen even under the glasses and she suggests wearing blastic frames instead of metal. If your glasses are made of metal, you can develop a burn on the area where it touches your face. You can have some wrinkling, some sun spots. Reporter: So with those tips in mind, I head to optique in west Hollywood to meet up with joechlt Z in search of that perfect blend of fashion and function. You want to protect your eyes. The most sensitive part and be able to look great and be stylish but at the same time also, you know, be practical about it. Reporter: And finally these full coverage 100% uv protected lenses just may be the answer. Right? Reporter: I feel like a movie star. I do. Oh, my gosh. Fashion and function, these glasses do it. Reporter: For "Good morning America," Abbie Boudreau, ABC news, Los Angeles. And joining us now is ABC news senior medical contributor Dr. Jen Ashton. So how concerned should we be here, Jen? Unfortunately, I this I we need to worry about this. I mean we're really talking here about two issues. We're talking about the cosmetic issue so just wrinkling and sun damage around our face. Who needs more of that? And then we're talking about real medical consequences to sun exposure when you're talking about the eye. This is no joke. Talking about risk of cataract, cancers in and around the eyes and macular degeneration. We do need to take it seriously. What do we do about it? Well, there's good sunglasses and there's not so good sunglasses. These aviators which this is what I wear, not so good. Oh, no. Wow, they're really -- This metal -- this metal actually mirrors the sun and can reflect it on to our cheeks. George, they look good, though. Tom cruise has nothing on you. Yeah. Wow. But, again, in terms of coverage and protection we really need to go for a plastic wraparound. The Jackie O. Style. Yeah. I like those. Those look nice. That get the side and make sure that the lenses are uv protection. That's really important. All right. So when we go to the store it says it. How do we know it is. You have to just believe that it does but, again, the bigger the frame the better it is and we can't forget about other things like sunscreen, hats, those kind of protection and I think the thing with sunscreen, guys. People do not apply enough so first of all you want to look for an spf of 30 or higher. And when you're talking about the face, this is the amount -- Wow. That's a lot and I recommend the liquid, not the sprays because you do get better coverage and make sure you get all the skin around your ears and neck and a good idea put it on in a mirror so you can actually see where you're covering because I'm the fool who has the embarrassing sunburn where you forget your shoulder. And the kids should just drench in it. Every two hours it needs to be applied and 15 minutes before we go out. Thank you, Jen. We want to thank sunglass hut for providing those glasses. Are you heading to boca? I will like to thank sunglass hut for this very special pair. You could pull that off, really. You could pull it off.
This transcript has been automatically generated and may not be 100% accurate.