How does the eye resist bacterial infections?!


Question: How does the eye resist bacterial infections!?
i know that the eyelids help protect the eye from bacterial infections

but when your eyes are exposed and the eyelids are open, how to the eyes resist bacterial infections!?

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Answers:
Firstly, the eye has good reflexes, for example, the blink reflex!. So when something comes close to your eye you blink immediately!. The cornea is highly innervated (very sensitive) so you will flinch if something comes close to your eye!. I heard somewhere that we have eyebrows to keep stuff from entering the eye but i'm not sure how true this is!.

Also, the tears contain biochemicals which have antibacterial properties!.

The cornea has an outer layer of cells called epithelia which help keep bacteria out!. So if you have some trauma to your eye and there is damage to these cells, there is an open passage for bugs to enter!.

Eyelids help by keeping the eye hydrated and they help keep foreign bodies out when you blink!.
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