These eyeglass adjustment methods are safe to try on your own with little risk. Your glasses are fragile, so be careful when making adjustments. Hold the glasses with your non-dominant hand and use the thumb of your dominant hand to gently push out the plastic nose pads. Do this on both sides until they sit comfortably on your nose.

Holding the glasses with your non-dominant hand, use the thumb of your dominant hand to gently push into the pad arm (behind the nose pad). Do this on both sides until they sit comfortably on your face. Run the handset under really warm water (not boiling, but as hot as possible) for a few minutes. Gently bend the earpiece downwards to increase the curve. Run the handset under really warm water (not boiling, but as hot as possible) for a few minutes.

Gently bend the earpiece upwards to loosen the curve. Use your non-dominant hand to secure the lens, then gently push in the end with your dominant hand. Do this on both sides to tighten the fit of your glasses over your head. Your lenses may need to be moved closer to your eyes.

Find a sunglasses manufacturer optician to add a panoramic tilt to your lenses. Secure the lens with your non-dominant hand, then gently pull out the end piece with your dominant hand. Do this on both sides to loosen the fit of the glasses on your head. Your lenses may need to be moved away from your eyes to adjust focus. Find an optician to add rear tilt to your lenses.