My specs don't seem to fit properly, does this matter?
It is important that your specs fit you correctly because poor fitting specs may affect the quality of your vision. For example, if you are short sighted and your specs are further away from your eyes than were intended you may feel that your specs are weaker than they should be.
Or, if you are long sighted you may feel that your specs are too strong. Both these situations need to be remedied and as a result you should return to your optometrist to have your frames adjusted as soon as you can.