Some rayajos in glass sunglasses can cause blindness?

[Trinity Center]

Good afternoon.?My view is that a relative of mine has a few weeks using a pair of sunglasses with scratched glass, the spot is about 2 or 3 mm for another 2, and dizzy a lot lately and has had 2 or 3 episodes of loss of vision, two of them driving, said

[Trinway]

poor quality glasses cause conjunctivitis, headache, falls, burns and loss of vision

[Trion]

some people choose glasses by the appearance, but not all glass in optical shop are qualified, inferior glasses hurt your eyes, increase the risk of cataract. And cataract will make you lose your sight when you are old. So you must be careful when you choose your glasses. and you'd better buy glasses from formal optical shops.