Why people blink and what should be normal gap in between two blinks?!
Question: Blinking is the rapid closing and opening of the eyelid. It is an essential function of the eye that helps spread tears across and remove irritants from the surface of the cornea and conjunctiva. On average, a blink takes approximately 300 to 400 milliseconds.[1] Blink speed can be affected by elements such as fatigue, eye injury, medication, and disease. A person approximately blinks once every two to ten seconds. The blinking rate is determined by the "blinking center", but it can also be affected by external stimulus.
Answers: Blinking is the rapid closing and opening of the eyelid. It is an essential function of the eye that helps spread tears across and remove irritants from the surface of the cornea and conjunctiva. On average, a blink takes approximately 300 to 400 milliseconds.[1] Blink speed can be affected by elements such as fatigue, eye injury, medication, and disease. A person approximately blinks once every two to ten seconds. The blinking rate is determined by the "blinking center", but it can also be affected by external stimulus.
in some medical cases such as parkinsons disease the blink
rate is inconsistant and in some cases very rarely blink!
People blink because their eyes gets dry and when the blink some kind of water wets the eyes for them to see.
A normal gap would be two seacends between each blink.