What is the purpose of corrective lenses in vision correction?

The purpose of corrective lenses in vision correction is to enhance visual acuity. These lenses are designed to compensate for various refractive errors in the eyes, such as myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia (age-related difficulty in focusing). By bending light in a way that improves the way images are focused on the retina, corrective lenses help individuals achieve clearer and sharper vision.

Corrective lenses do not eliminate all vision problems; rather, they specifically address the errors in how light enters the eye and is processed. They also do not play a role in detecting color blindness, which typically requires specific tests rather than standard vision correction lenses. Additionally, while some eyewear can provide UV protection, this is not the primary function of corrective lenses; their main goal is to improve visual clarity rather than offering sun protection.