Is the resin lens good or glass good?
Say the lens first:The biggest advantage is light resin, glass is 1/3, and, if broken, the resin will not like glass, a glass bar, usually just opened, so relatively safe, especially for children who love slapstick.
Besides, frames:According to the plastic material, the cheapest, 10 yuan, according to their metal distinction, to tens of million yuan, medium price of about 200 yuan.To sum up, a pair of glasses, medium price of 500 or less, to catch up with students holiday what, usually have concessions, choose moderate priced packages, about 300 will be able to win.
But children or minors, eyes are not fully developed, once the myopia degree has been will go up, until adulthood, so not just with this year's glasses, next year can not be used, so I have experience, and whether they should pay attention to the protection of fundamental never mind. From this point of view, the more cost-effective glass, a pair of 10 to dozens of dollars. On the whole, the medium price lenses are about 200 yuan.
