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EvilNoobHacker t1_j6c72y9 wrote

Reply to comment by AutoModerator in [WP] Biology fact: "The human immune system should never find out about our eyes" by red-dwarf

As a very silly boy who doesn't know anything about bio, could someone smart explain this?

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Deloptin t1_j6cht0w wrote

Your immune system doesn't know about your eyes. If it somehow found out, it would attack the foreign object and you would go blind.

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narcdef t1_j6crq0p wrote

Our eyes have privilege of restricting immune response from our body so our vision is not damaged. But there are auto immune diseases that makes this happen too damaging our vision. So I guess OP is talking about that?...

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Copperlaces t1_j6f2y7z wrote

Yes. And optic neuritis (I have this in both eyes) is an autoimmune condition that attacks your eyes. White blood cells attack the optic nerves thinking the nerve coating, myelin sheath, is an allergen, damaging the nerves and opening up for an infection. It's part of multiple sclerosis.

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FarsLasagne t1_j6c8y3f wrote

I Think they are saying our eyes are foreign object.

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