Will The Bacterial Conjunctivitis At The Young Age Makes The Eye More Resistant?

Hi, I am very interested in the eye, mostly because it's such a delicate organ and it's very hard to understand how it is working and how it can work. I have experimented alot with eyes, such as night vision, vision disorts, how much an eye can take and I have figured out a little bit, just not enough. So I not only one question, if that's okay if I ask more than one?

So, the eye is very delicate, but still it won't take that much damadge if you for an eksample is touching your eyeball, is this right or is it only my eyes that is very strong to bacteria?
Night vision is really good, but we humans have a very bad night vision, in darkness we are almost blind simular to animals as owls, cats, dogs etc..can you actually improve this kind of night vision?
If you place a finger lightly to the side of the eye, not on the eye, but on the skin, and shake your finger, the suroundings moves, is this because you're moving the eye with your finger? And if you press on the the same way as you did to shake the area around you, these small patches of different colours appears in your vision as a vision disort and if you start walking you'll feel dizzy, it's like the area around you is moving, or flowing like waves, what happenes? also if you do this long enough you'll feel a hurt, and things will blurr out untill you see this blackness with grey clouds, I have only tried this out once due to the fact I was afraid to hurt my vision.
One last question, it's short. I once had bacterial conjunctivitis, this happened when I was a kid. Can this make the eye more resistant?
Sorry, this was long, but I really need answers to this, eyes and vision have always facinated me.