Retrobulbar neuritis
Retrobulbar neuritis is generally divided into two types: acute and chronic, with the latter being more common. Due to the different locations of the optic nerve being invaded, retrobulbar neuritis can be divided into many different types: the lesions most often invade the macular bundle of the optic disc, which is also known as axial neuritis because it is located in the central part of the retrobulbar intraorbital optic nerve. When the lesions invade the peripheral fiber bundles of the optic nerve from the nerve sheath, it is called neuroperineural matrix inflammation, which is only a pathological change and is difficult to diagnose clinically. If the optic nerve fibers are completely transected and affected, there is no light perception and blackness, which is called transverse optic neuritis.