Eyelid functions include automatic blinking ​ — about 15 times a minute to keep the cornea wet — ​ as well as reflex blinking when something quickly approaches the eyes and voluntary, or deliberate, blinking.
Silmalaugude funktsioonide hulka kuulub ka automaatne silmade pilgutamine umbes 15 korda minutis, et hoida silma sarvkesta niiskena, samuti reflektoorne pilgutamine, kui midagi ootamatult silma ähvardab sattuda, ja silma sihilik pilgutamine.