I work for an ophthalmologist and we have a small optical shop within our office. When we send glasses to the lab we write the prescriptions on the lab slips ourselves. We check and double check and so far, knock on wood, we haven't made a mistake, but, being human, anything is possible. Next, when they come back from the lab we re-check them on the lensometer (an instrument which reads the prescription) to see if they were made according to the doctor's prescription before we call the patient.

If the patient should feel that something is "not right" the doctor encourages them to try the glasses for a week. There is usually a period of adjustment with new glasses, and this should be enough to "settle in" with a new prescription. If, at the end of that week, things are still not right we bring them in for another appointment. Sometimes it is as simple as making an adjustment on the nose piece (to raise or lower where they sit on your nose to make sure you are looking out of the correct "field.") You don't mention if your glasses contain a bifocal or are progressive lenses. Are they just for distance or do you have a bifocal in them?

If they are progressive lenses there are different types that labs make now. I know I have had trouble myself with a certain new type of progressive lens and prefer the old standard myself.

I would give the glasses a week and then certainly return to your eyecare professional. Let us know what happens!