Blinking

Rapid closing and opening of the eyelid

Blinking is a bodily function; it is a semi-autonomic rapid closing of the eyelid. A single blink consists of the closing of the eyelid or inactivation of the levator palpebrae superioris and the activation of the palpebral portion of the orbicularis oculi. It is an essential function of the eye that helps spread tears across and remove irritants from the surface of the cornea and conjunctiva.

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