Which term means blindness in one half of the visual field?

Which term means blindness in one half of the visual field?

• A. Hemianopia
• B. Macular degeneration
• C. Hyperopia
• D. Myopia

Answer: (A)

Half of the visual field blindness is called hemianopia. This term describes losing sight in either the left or the right half of the vision, typically due to a lesion in the brain’s visual pathways (such as the optic radiations or the occipital cortex), rather than a problem with the eye itself. It’s different from central vision loss caused by macular degeneration, which affects the center of the field rather than one half. Refractive errors like hyperopia and myopia change how clearly you see overall, not which part of your field is lost. So the best term for this specific type of field loss is hemianopia.

Half of the visual field blindness is called hemianopia. This term describes losing sight in either the left or the right half of the vision, typically due to a lesion in the brain’s visual pathways (such as the optic radiations or the occipital cortex), rather than a problem with the eye itself. It’s different from central vision loss caused by macular degeneration, which affects the center of the field rather than one half. Refractive errors like hyperopia and myopia change how clearly you see overall, not which part of your field is lost. So the best term for this specific type of field loss is hemianopia.