Final answer:
Damage to the occipital lobe can disrupt vision, as it is primarily involved in visual processing. Conditions like bilateral hemianopia and prosopagnosia can arise from damage or pressure in certain brain areas, affecting a person's ability to see and recognize faces.
Step-by-step explanation:
Damage to the back of the brain, specifically the occipital lobe, can cause visual disruptions like bilateral hemianopia, where a person loses lateral peripheral vision. This is not to be confused with tunnel vision, where only the central visual field is perceived and the outer superior and inferior fields are intact.
Disruptions in vision may occur due to a growth, such as in the pituitary gland, which can compress the optic chiasm, leading to an interference with signal transmission. This would mean that while central vision remains, the outermost areas of the field of vision are lost, and the individual cannot see objects to their right and left. In more severe cases, such as with prosopagnosia or face blindness, a person may not even recognize familiar faces or their own reflection.