Some people's ear positions are not naturally corresponding. You just need to adjust them according to your own ear position. Look in the mirror. Specific methods: hold the glasses frame with thumb and forefinger, and hold the glasses legs. If pressed, the thumb will exert force, otherwise the index finger will exert force. Remember to hold the glasses frame tightly, or it will be deformed easily. If you really have no confidence, go to your local doctor's glasses and ask them to adjust them for you. It's free. Doctor glasses senior optometrist answers for you.