If one side of your frames looks higher than the other, you need to adjust the arms of your glasses — the part of the frames that hooks behind your ear.
If the right side is higher than the left: Gently bend the left arm down at the hinge or where the arm bends behind your ear.
If the left side is higher than the right: Gently bend the right arm down at the hinge or where the arm bends behind your ear.
Glasses that pinch your nose aren’t just uncomfortable, prolonged pressure can cause headaches or migraines, too. How you fix this depends on your frame material.
If you wear metal frames: Simply widen the plastic nose pads using your thumbs until the frames fit comfortably.
If you wear plastic frames: Once you’ve soaked the arms of your glasses in warm water for 30-60 seconds, gently apply an upward and outward pressure on the end of the arms to get a more relaxed fit.
Your glasses will feel very uncomfortable if your frames are too tight on your temples. On the other hand, if your frames are too loose, it can look and feel a little awkward.
Either way, you can adjust your frames at home for a more comfortable fit:
If the arms squeeze against your temples: For metal frames, use your nondominant hand to secure the lens of your glasses. With your dominant hand, apply very gentle outward pressure on the corner part of the frames located between the arm hinge and the lens. Repeat on the other side of your frames for a looser fit around your temples.
If the arms fit too loosely at your temples: Again, only for metal frames, use the same method used to loosen arms, except apply gentle inward pressure on the corner part of the frames located between the arm hinge and the lens. Repeat on the other side to tighten the fit around your temples.