A member asked:

What causes the eye's to blink?

A doctor has provided 1 answer

Blinking : Is a subconscious response to the eye needing lubrication. The tear film is a big player in keeping the vision clear and eyes healthy.

Answered 5/24/2015

4.7k views

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Related Questions

A member asked:

I often need to blink my eyes very hard. What causes this?

2 doctors weighed in across 2 answers