Why do eyes blink? - ProProfs
     

Why do eyes blink?

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2 Answers

G. Horace

G. Horace, Content Developer, Chicago

Answered on Oct 31, 2018

You may have experienced some dirt going into your eye. What is the first reaction of your eye? It usually closes in order to protect itself further, right? The eyelids are in charge of spreading a thin layer of oil over the eyes so that it can be protected further from too-bright light, dust and other particles that may enter the eye.

At the same time, eye-blinking will make sure that the eyes will not become too dry. Some people experience dry eyes because of stress. Allowing your eyes to blink naturally can help solve this problem. Just imagine how painful it would be if your eyelids cannot blink. It can be a problem for you.

V. Barnes

V. Barnes

Answered on May 18, 2018

Blinking is a protective reflex that happens automatically by your body in response to something that might be harmful to you. You don’t really even have to think about protective reflexes. Blinking is your body’s way of keeping your eyeballs from drying out because with each blink, a mixture of oils and mucous secretions clean and moisten your eyes.

Blinking also helps protect your eyes from such things as bright lights and foreign bodies like dust. Coughing and sneezing are two other examples of protective reflexes. These two reflexes help to clear your nose and airways of irritating stuff.

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