Question

what will happen when some particles or insect enters in our eyes​

Answer 1

Explanation:

If an object gets into your eye it can damage the surface of the cornea. This is known as “corneal abrasion” or “corneal erosion.” It's not always visible. If you have a corneal abrasion it can feel like there's still something in your eye – even if the object has been removed.

Answer 2

Answer:

There are plenty of situations where small objects can easily enter your eye