If you are looking for reading glasses, I don't know a soul who gets them made by an optician. You just need your eye doctor to give you your prescription for reading, i.e. do you need 1.50, 2.00, 2.50? Or, go into a drugstore and try on a few and see what works! You could go to a shop and get your head and nose bridge measured, as you will need those measurements to order online. Go back to the store and have someone help you. Try on a few, have them measure you and you'll get an idea of what you want and what fits. It will be clear to the salesperson that your head is too small for what they have. They may try to convince you, but stand firm.