Sunglasses

I have always been wondering about what are things to take into account when purchasing a new pair of sun shades as they all come in various sizes, frame colours and even lense colours. After doing much research I realized some of the guides useful from many sources and thought of sharing with you all. So, here goes:

• Look for sunglasses that block 99-100 percent of all UV light. Look for a label showing   how much UV radiation the lenses reflect. Read labels carefully. If you are concerned, ask your optician, optometrist or ophthalmologist for his or her opinion.

• Select a tint color based on your particular needs. Different tints filter different wavelengths of light. Gray is usually recommended for driving for proper traffic light recognition. Also, check that the tint appears uniform across each lens.

• Try the sunglasses on in front of a mirror. If you can see your eyes behind the sunglasses,    they may not be dark enough for you.

• Be aware that dark-colored sunglasses don’t necessarily provide better protection   from the sun's harmful rays.

• If you are considering purchasing a gradient tint, make sure the tint lightens gradually, from the top to the bottom.