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blink

the involuntary movement of one or both eyelids of both eyes simultaneously. The frequency varies between species. Cats blink the least, with the possible exception of owls. In birds it is the lower eyelid which is moved up to meet the upper lid. In mammals the upper eyelid is moved down to meet the lower lid. The blink is a part of several reflexes including the palpebral, conjunctival and menace reflexes.

blink reflex

see blink response.

blink response

absent in lesions of the ophthalmic branch of the trigeminal nerve. Called also blink reflex.

blink

A temporary closure of the eyelids (usually of both eyes). Blinks are usually involuntary but may be voluntary. The frequency of blinking is conditioned by a number of external and internal factors, e.g. glare, wind, emotion, attention, tiredness, etc. Normal blink rate is about 10 blinks per minute, although there are wide variations. The duration of a full blink is approximately 0.3-0.4 s. Blink rates are often altered with contact lens wear and in some diseased states (e.g. chalazion, Graves' disease). See corneal reflex; wink.

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3 and 9 o'clock staining adenoid facies ammoniated forage poisoning awake blepharism blepharoclonus blink reflex blinking computer vision syndrome eye glabella tap habit tic ideomotor signals Locked in Syndrome mimic spasm motor tic Myerson's sign Nervous tic palpebrate	I stare myself blind--shut lids green-black, magenta, cyan--and then blink back at this. Under sleep by Hall, Daniel / Harvard Review And we keep coming across other reminders and have to blink back the tears. Remindersof toddler's life bring tears to our eyes; FUND: Nursery's ... by Coventry Evening Telegraph (England) And her mother Josephine leapt to her feet to give her very own standing ovation - Sienna spotting the gesture, smiling and appearing to blink back tears. Show goes on for fuming star; JON CLEMENTS watches Sienna on the ... by The Mirror (London, England)	blind Blind Biopsy blind fistula blind fouls blind grass blind gut blind intubation blind loop Blind Loop Syndrome blind quarter Blind Review blind spot Blind Spot Syndrome Blind Study blind testing BLIND-DATE Blinded Medications blindfolding blindgut Blinding blindness blindness, color blindness, legal blindsight blink blink back blink reflex blinkers blinking blister blister agents Blister Beetle Blister Cell Blister of Bone Sign blisterform oral lesions blistering blisterweed blitz gus Blizzard bloat bloating Bloatware blobs Blocadren Bloch Bloch-Sulzberger incontinentia pigmenti Bloch-Sulzberger syndrome block Block and Tackle block anesthesia block calving	blindsight Blindsighted Blindsighted blindstorey Blindstory Blindstory blindworm blindworms Blindzone/Glare Elimination Bline Speed Suppression Bling Bling Bling Bling Bling bling Bling Chains Bling-bling Bling-bling Blinged-Out Cabbage blini Blinis blink blink blink blink blink Blink 182 blink at blink at blink away blink back Blink beer Blink comparator Blink Microscope blink of an eye Blink of an Eye (Voyager episode) Blink reflex Blink reflex Blink reflex blink response blink response blink response blink tears back Blink-eyed Blinkard blinked blinked blinked blinked blinked at blinked at blinked at blinked back blinked back blinked back Blinken Blinken Blinken Blinken lights Blinkenlichten Blinkenlights

Mentioned in

References in periodicals archive

Medical browser

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3 and 9 o'clock staining
adenoid facies
ammoniated forage poisoning
awake
blepharism
blepharoclonus
blink reflex
blinking
computer vision syndrome
eye
glabella tap
habit tic
ideomotor signals
Locked in Syndrome
mimic spasm
motor tic
Myerson's sign
Nervous tic
palpebrate

I stare myself blind--shut lids green-black, magenta, cyan--and then blink back at this.

Under sleep by Hall, Daniel / Harvard Review

And we keep coming across other reminders and have to blink back the tears.

Remindersof toddler's life bring tears to our eyes; FUND: Nursery's ... by Coventry Evening Telegraph (England)

And her mother Josephine leapt to her feet to give her very own standing ovation - Sienna spotting the gesture, smiling and appearing to blink back tears.

Show goes on for fuming star; JON CLEMENTS watches Sienna on the ... by The Mirror (London, England)

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