Which of the following is a symptom of hyperventilation?

Visual impairment can indeed be a symptom of hyperventilation. When a person hyperventilates, they breathe rapidly and shallowly, causing a decrease in carbon dioxide levels in the blood (a condition known as respiratory alkalosis). This can lead to a range of physiological effects, one of which is visual disturbances. The body may experience constricted blood vessels, reducing blood flow to the brain, including the visual cortex, which can cause blurred vision or tunnel vision.

Hyperventilation also leads to symptoms such as dizziness, tingling in the extremities, and even fainting, primarily due to changes in blood chemistry and oxygen delivery. Therefore, visual impairment aligns well with the physiological impacts resulting from hyperventilation and is a notable symptom among the various effects it can have on the body.