Question

Why do we blink when suddenly someone brings an object close to our eyes?

Answer 1

Answer:We call it “the acoustic startle-reflex eye blink”. The blink happens especially fast - in about a hundredth of a second – so you don't have time to think about it. Humans have developed this reflex over many years because it has helped us keep our eyes safe and that has helped us survive.

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Answer 2

Answer:

blink reflex

Explanation:

When a noise surprises us, our eyes blink without us even realizing. It happens unconsciously, without us telling our brain to do it. =

This is called a blink reflex. It has an even longer name, actually. We call it “the acoustic startle-reflex eye blink”. The blink happens especially fast - in about a hundredth of a second – so you don’t have time to think about it.