Several brands focus specifically on the "budget-friendly but high-performance" niche:
: Hold the glasses at a distance and look through them at a rectangular pattern, like a tiled floor. If the lines appear wavy when you move the glasses, the lenses have distortions that can cause eye strain. where to buy cheap sunglasses
: While helpful for reducing glare on water or roads, polarization does not equal UV protection . Ensure the pair has both if you plan to use them for driving or outdoor sports. where to buy cheap sunglasses