Sunglasses lenses come with UV400 coating which provides 100% protection against UVA and UVB rays.
The following lens options are available for sunglasses:
Tint - Simple soft or hard tints are fun, they look good and are comfortable to the eyes.
Polarised - The best option for sunglasses, polarised lenses blocks glare, reduces the effect of harmful UV light and are very comfortable to the eyes.
Photochromatic - They automatically adjust to the brightness whether you are indoor or outdoor. They reduce eyestrain and provide greater comfort to the eyes.