Eyelid function includes:
Related question: Lagophthalmos can arise from a malfunction of the:
Answer: Its key function is to regularly spread the tears and other secretions on the eye surface to keep it moist, since the cornea must be continuously moist. They keep the eyes from drying out when asleep. Moreover, the blink reflex protects the eye from foreign bodies.
Eye lids are not only for protection from FB, also for keek the eye moisture by spreading the tears