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 is comprised of four lobes: 1  Frontal Lobe: Also known as the motor cortex, this portion of the brain is involved in motor skills, higher lever cognition and expressive language.  Occipital Lobe: Also known as the visual cortex, this portion of the brain is involved in interpreting visual stimuli and information.