When buying sunglasses, especially for children, UV protection is key. A recent investigation by Which? found that a third of children’s sunglasses from online marketplaces, including Amazon ...

Toy or novelty sunglasses, which won’t tout UV protection on the label, can put kids’ eyes at greater risk of sun damage. Here’s what you need to know about protecting children’s eyes.

DETROIT – What is the deciding factor when you buy a pair of sunglasses? Price, size, shape, color, UV protection, polarization, and tint are just some of the things to consider.

Polarized lenses, like UV sunglasses, protect your eyes from sun damage. While they do offer UV (ultraviolet) protection from the sun's rays, they also have other added benefits.

Sunglasses with the “cosmetic” label block about 70% of UV rays. Other countries have their own standards. Be cautious if there’s no label.

There are two types of UV light to be concerned about: UVA, which is associated with skin aging, and UVB, which is associated with skin burning. UV 400-protected sunglasses block both.

SAN ANTONIO – Cheap sunglasses can protect your eyes against harmful UV rays as well as expensive ones. That's the finding after testing ten pairs of sunglasses, priced from $1 to $200.

There’s UV light on cloudy days and during other seasons of the year — anytime it’s daytime. “It’s important to protect your eyes all year round,” she says.

To see if cheaper sunglasses can protect against the vision issues Fong detailed, "GMA" bought 11 cheaper sunglasses -- from mall kiosks, pharmacies, mainstream fashion stores and even street vendors.