Sunglasses, more than just a fashion statement.

Take a cue from celebs and fashion types who know that the right pair of sunglasses can add instant mystique, chic and polish to any look.But also know that sunglasses are more than just a fashion statement: they are a necessity to protect your eyes from harmful UV rays.

The color and degree of darkness of a lens doesn't tell you anything about sunglasses' ability to block UV rays which can harm your eyes, according to the American Academy of Ophthalmology.Look for sunglasses that block at least 99% of harmful UV rays (check the label!).

Sunglass trends have taken their cue from runway and street fashion. Retro looks like aviators and over sized  "Jackie O" frames along with sleek, futuristic shield shapes compliment what's going on in fashion.Trendy tints span the rainbow, so look for a hue that flatters your coloring.

In general, you should choose a pair of shades in a shape that is the opposite of your face shape.

For example, round faces look best in anything but round shades. A rounder face can carry off geometric shapes, ovals, wraps and shields.More angular or thin faces look better in rounder frames; oval faces can carry off almost any style.

references <http://fashion.about.com>