Your own optician can help you choose new glasses. But you can get new glasses from any optician. There are lots of different glasses frames. Choose the ones you can afford and that you like the best. You may want someone to tell you if they look good on you.
Some glasses are heavy.
Some are light. Make sure they are comfortable and do not hurt your ears or nose. You do not want to pay money for glasses you won't wear. Glasses are made specially for each person. Some glasses are fixed, and some have nose pads that can be made to fit you.