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).
Occipital Lobe (located behind the temporal and parietal lobes) - Responsible for the processing of visual information. Damage to this area results in partial or complete blindness. Limbic Lobe (located around the junction of the cerebral hemisphere with the brain stem) - It is involved in the emotional and sexual aspects of behavior and in the processing of memory.