Well, generally speaking, optic neuritis is inflammation of the optic nerve, which is the structure connecting the eye to the brain. And according to some experts, it can occur in children or adults and may involve either one or both optic nerves. In many cases, inflammation of the optic nerve causes loss of vision because of the swelling and destruction of the protective myelin sheath that covers and insulates the optic nerve. To treat it, you need to go and see the eye doctor who can just have a check for you. And then have the treatments with it, for example, you may have steroid medications.