**Core Concept**
Cortical blindness is a condition where a person loses vision due to damage to the visual cortex, which is the part of the brain responsible for processing visual information. This damage can be caused by various factors, including stroke, trauma, tumors, or infections.

**Why the Correct Answer is Right**
The visual cortex is a complex structure that processes visual information from the retina. When the visual cortex is damaged, it disrupts the normal processing of visual signals, leading to cortical blindness. The visual cortex is divided into different areas, each responsible for processing different aspects of vision, such as form, color, and movement. Damage to any of these areas can result in specific visual deficits.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because cortical blindness is not caused by problems with the retina itself, but rather with the brain's ability to process visual information.
**Option B:** Incorrect because cortical blindness is not the same as visual agnosia, which is a condition where a person has difficulty recognizing objects or people despite having normal vision.
**Option C:** Incorrect because cortical blindness is not caused by problems with the optic nerve, which carries visual information from the eye to the brain.

**Clinical Pearl / High-Yield Fact**
Cortical blindness is often a result of damage to the occipital lobe, which is the part of the brain responsible for processing visual information. This can occur due to a variety of causes, including stroke, trauma, or tumors.

**Correct Answer: C. Cortical blindness is caused by damage to the visual cortex, not the retina, optic nerve, or other structures.**