Can a swollen optic disc lead to total loss of sight? does it mean that you have a brain tumor? is swollen optic disc same as papilledema? how do they differ if at all? how is a swollen optic disc treated? do you have to be hospitalized? how long?

Swollen optic disc: Addressing your post would need at least a 20-minute question-and-answer session, and I have only 400 characters. Most important first question is whether 1 or both eyes are involved. Both eyes = most likely papilledema. One eye: not. These questions are best answered in person by an eye specialist. For now, check this: https://symptomstreatment.org/swollen-optic-nerve/