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  2. Blinking - Wikipedia

    en.wikipedia.org/wiki/Blinking

    Blinking is a bodily function; it is a semi-autonomic rapid closing of the eyelid. [1] A single blink is determined by the forceful closing of the eyelid or inactivation of the levator palpebrae superioris and the activation of the palpebral portion of the orbicularis oculi, not the full open and close.

  3. Corneal reflex - Wikipedia

    en.wikipedia.org/wiki/Corneal_reflex

    The corneal reflex, also known as the blink reflex or eyelid reflex, [1] is an involuntary blinking of the eyelids elicited by stimulation of the cornea (such as by touching or by a foreign body), though it could result from any peripheral stimulus. Stimulation should elicit both a direct and consensual response (response of the opposite eye).

  4. Blepharospasm - Wikipedia

    en.wikipedia.org/wiki/Blepharospasm

    The primary disorder is benign essential blepharospasm, in which term the qualifier essential indicates that the cause is unknown. Blepharospasm may occur as secondary to conditions including dry eyes and other specific ocular disease or conditions, Meige's syndrome and other forms of dystonia, and Parkinson's disease and other movement disorders.

  5. Bell's phenomenon - Wikipedia

    en.wikipedia.org/wiki/Bell's_phenomenon

    Bell's phenomenon (also known as the palpebral oculogyric reflex [1]) is a medical sign that allows observers to notice an upward and outward movement of the eye, when an attempt is made to close the eyes. The upward movement of the eye is present in the majority of the population, and is a defensive mechanism. [2]

  6. Menace response - Wikipedia

    en.wikipedia.org/wiki/Menace_response

    It includes the reflexive blinking that occurs specifically in response to the rapid approach of an object. [1] The menace response comprises blinking of the eyelids, in order to protect the eyes from potential damage, but may also include turning of the head, neck, or even the trunk away from the optical stimulus that triggers the response. [2]

  7. Meige's syndrome - Wikipedia

    en.wikipedia.org/wiki/Meige's_syndrome

    Spasm means "uncontrolled muscle contraction". The term blepharospasm ['blef-a-ro-spaz-m] can be applied to any abnormal blinking or eyelid tic or twitch resulting from any cause, ranging from dry eyes to Tourette's syndrome to tardive dyskinesia. The blepharospasm referred to here is officially called benign essential blepharospasm (BEB) to ...

  8. Why do cats blink? And does blinking slowly help with feline ...

    www.aol.com/news/why-cats-blink-does-blinking...

    It's probably safe to say that we've already established that cats blink. However they don't quite do it in the same way that we do. Cats' eyes are largely similar to ours but with some ...

  9. Lagophthalmos - Wikipedia

    en.wikipedia.org/wiki/Lagophthalmos

    Blinking covers the eye with a thin layer of tear fluid, thereby promoting a moist environment necessary for the cells of the exterior part of the eye. The tears also flush out foreign bodies and wash them away. This is crucial to maintain lubrication and proper eye health.