Transcript for Are Designer Sunglasses Worth the Cost?
We're going the move to the "Heat index" now. Putting your sunglasses to the test. Can you get the same protection for your eyes as a fraction of the price? Becky Worley investigates. Reporter: Designer shades. They promise to block 100% of uv rays. But do cheaper sunghaszs give you less protection? It will age your eye faster. Referee: Dr. Dennis Fong, the professor at the urt of Berkeley school of opt Tom try says unlight can cause a lot of problems. To see if cheaper sunglasses can protect? See, protected -- I buy sunglasses from mauls, street vendors, main stream fashion stores. All claim to bok 100% of uv ray. But do they? Omg so cute. Most cost about $10. None more than $20. I buy coach, raybans and smith. Each other 100 bucks. $183. To assess true uv protection, Dr. Fong uses special equipment. First he tests the high-end glasses. Okay, ray-ban. 100% uv protection. Reporter: All the expensive glasses off it. But now, these are from a mall kiosk. They cost about $20. You're getting 100% uv protection. Reporter: Drugstore. 100%. Reporter: H&M. 100% again. Reporter: Kids glasses from a street surrender. 100%. Reporter: Wow. 11 pairs of discount glasses. They all had the same amount of uv protection as the expensive brands. 100%. But Dr. Fong explains that expensive glasses often have more durable frames, higher end design, a more comfortable fit and the nice case. Rocking the cheap glasses from now on. For "Good morning America," Becky Worley, ABC news, Berkeley, California. I know the difference. I lose the expensive ones more easily. Never false. That is so true. It's great information. Thank you, Becky. It's time for "Gma's" epic
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