Twentytwenty vision is the term used to describe the ability to see clearly at a distance of 20 feet. However, there are several synonyms that can be used to describe this condition. These include perfect vision, normal vision, ideal vision, excellent vision, and sharp vision. All of these terms refer to the same level of visual acuity, which is considered to be the standard for normal eyesight. Having twentytwenty vision means that a person can see objects clearly and sharply from a distance of 20 feet, without the need for corrective lenses such as glasses or contact lenses. Good eyesight is essential for many aspects of daily life, including driving, reading, and participating in sports.