The squeaking sound of rubbing the eyes is a normal physiological phenomenon, not related to eye diseases, but to the anatomical structure of the conjunctival sac. After each blink, the lacrimal gland is squeezed, producing a certain amount of tears, some of which remain in the conjunctival sac and are eventually drained into the nasal cavity through the siphoning action of the tear dots. Because the conjunctival sac is a bag-like structure, there is a certain amount of tear retention, and when the eyes are rubbed mechanically closed above the conjunctival sac, there are components of fluid and air inside the conjunctival sac, and when the eyes are repeatedly rubbed with the fingers, the fluid and air are squeezed, producing a squeaking sound. There are some patients who experience a squeaking sound when rubbing their eyes, and sometimes there is no squeaking sound. If a squeaking sound occurs when you rub your eyes, it is possible that the sound will go away if you change the position of your eyes. Therefore, a squeaking sound when rubbing the eyes is normal and is caused by the anatomical structure of the conjunctival sac. It is recommended that you do not rub your eyes with your hands because rubbing your eyes with your hands is a bad habit.