Basically this doesn't happen. The conjunctiva lining the inner surface of the eyelid is called the bulbar conjunctiva, and the junction between the bulbar conjunctiva and the palpebral conjunctiva is called the fornix conjunctiva. Contact lenses are blocked by the conjunctiva and remain in front of the eye.
When you suddenly cannot find the contact lens, you can first turn your eyes to feel if there is a place where you feel a heavy foreign body sensation, usually the contact lens is there; Rinse the eyes with a large amount of saline. When the symptoms cannot be relieved, go to the nearby hospital or ophthalmology clinic for examination immediately.
