Almost every people who wears prescription glasses don’t want to look at this wonderful planet blurred without a pair of eyeglasses any more. And a large part of them never exchange their eyeglasses, still glasses have been broken or totally can’t be used. Recently, as statistic shows, 29% customers prefer to wear the same eyeglasses for more than 3 years, while 36.4% customers will buy a new one when eyeglasses are out of work. Actually, overused lenses are far more likely aggravate the strength of lenses.
Ordinary people should exchange glasses lenses every 2 years, because degrees of your eyes probably need to adjust, or your eyewear is unfashionable. Once the surface of lenses has been scratched, it will enormously influence its function of optical correction. Regular maintenance was important, furthermore, taking an examination periodically can keep eyeglasses continually on good condition. (more…)