The tissue damage in individual hypersensitivity reactions is often caused by a mixture of the types of hypersensitivity reaction, for example, a combination of types I and IVa. IVb and IVc in contact hypersensitivity.
Depending on its location and severity, a TBI can affect your vision by damaging parts of the brain involved in visual processing and/or perception (e.g., cranial nerves, optic nerve tract or other circuitry involved in vision, occipital lobe).
The brain cortex or cerebral cortex is the part of the brain which is responsible for higher thought and function. When people think of the brain, they usually visualize images they have seen of the cerebral cortex, since it is the largest part of the brain, and it is the area of the brain which differentiates humans from other animals.