How far from the eye should near vision charts be held?

The correct answer indicates that near vision charts should be held 14-16 inches from the eye. This distance is significant because it simulates natural reading conditions for most individuals. Holding the chart at this distance ensures that the visual acuity measured reflects a realistic scenario that people encounter in daily life when reading or performing close tasks.

At this range, the eyes can adequately focus on the text, allowing for an accurate assessment of near vision abilities. Distances that are too close or too far may distort the visual acuity results, leading to inaccurate evaluations or misunderstandings regarding a person's near vision capability.

While the other provided distances may still allow for some level of vision testing, they do not align with the recommended standards for optimal near vision assessment which aim for that 14-16 inch range to mirror common reading habits effectively.