facts about sunglasses?

> Wearing sunglasses is not just about t fashion or loo oks, it’s a way to protect the ey yes from the sun.

> Expensive sunglasses do o not necessari ly mean better protection against ultraviolet rays. There are cheaper heaper sunglasses which could do just as good a job.

The best is to find the one that can block

100% UV rays.

> The bigger the lenses, the better the protection for the eyes as this prevents the UV light from getting around the edges and entering the eyes when the pupils are dilated. > Colours have no impact on UV protection. They are basically a personal preference only.

> While polarised lenses block glare and improve the viewing contrast, they do not protec ct the eyes against

UV rays.

>A darker shade does not necessaril ly block mor re light. The level of UV protection on sunglasses does not lie in the tint factor.

> The level of UV protection is determined by the lens treatment or type of plastic polymer used to manufacture these lenses.