Are plastic glasses good?
Plastic glasses are lightweight, malleable, colorful and cheap. If you must compare it with other materials, there may be shortcomings, but the above advantages are enough to show that plastic frame glasses are good.
How long do plastic frame glasses last?
Any ordinary glasses are generally fine for 1-2 years if used in a regular environment. Of course, if you happen to sit on your butt on your plastic frame glasses or if they are used as toys by your children, then... I highly recommend you take a look at our how to adjust your glasses.