Why might a person with errors of refraction require corrective lenses?

A person with errors of refraction, such as myopia (nearsightedness), hyperopia (farsightedness), or astigmatism, requires corrective lenses to accurately focus light on the retina. Errors of refraction occur when the shape of the eye prevents light from focusing directly on the retina, which can lead to blurred vision.

Corrective lenses, such as glasses or contact lenses, are specifically designed to adjust the path of light entering the eye. By altering the light's direction, these lenses help to ensure that it focuses correctly on the retina, allowing for clear and sharp vision.

While the other options address various aspects of vision and eye health, they do not directly pertain to the function of corrective lenses for refractive errors. For instance, enhancing color vision or improving peripheral vision are not primary functions of corrective lenses designed for refraction issues. Additionally, preventing cataract formation is unrelated, as cataracts are a separate condition that can affect vision but are not corrected by lenses.