It is a popular misconception among people that cheap or discount designer sunglasses are inferior in quality and bad design. It is totally wrong, they do give 100% protection against UV rays and design nothing less than authentic designer frames.
If this is the case, one often wonders how cheap designer sunglasses are available at fraction of cost compare to expensive designer sunglasses. High street opticians usually inflate the rate too much leading to the expensive “price tag”, where as online retailers, there are no middlemen involved, minimum infrastructure and overhead cost, hence they sell designer glasses at low price making the same profit.