The term "20/20 vision" is widely used, but what does it really signify? Contrary to popular belief, 20/20 vision doesn't represent perfect vision. Instead, it refers to normal visual acuity, or sharpness of distance vision, which is measured during an eye exam. Before you visit us at AssureVision in Arlington Heights and Barrington, IL, for care, continue reading to learn more about 20/20 vision!

Defining 20/20 Vision

In optometry, 20/20 vision is considered a standard measure of visual acuity. Specifically, it indicates that a person can see at a distance of 20 feet what a person with normal vision can see at the same distance. In other words, if you have 20/20 vision, you can see objects clearly from 20 feet away, which is considered the average distance for distinct vision.

Understanding the Numerical Ratio

The numerical ratio in 20/20 vision serves as a benchmark for clarity. The first number represents the distance at which the test is conducted, which is typically 20 feet. The second number denotes the distance at which a person with normal vision can see the same detail. So, if someone has 20/40 vision, it means they can see at 20 feet what a person with normal vision can see at 40 feet.

Interpreting Different Measurements

While 20/20 vision is often seen as ideal, it's essential to note that variations exist. Some individuals may have better than 20/20 vision, such as 20/15 or even 20/10, indicating sharper visual acuity. Conversely, others may have vision that falls below 20/20, like 20/30 or 20/40, suggesting the need for corrective measures like glasses or contact lenses.

Factors Affecting Visual Acuity

Numerous factors can influence a person's visual acuity, including refractive errors like nearsightedness, farsightedness, and astigmatism. Additionally, age-related changes, eye diseases, and environmental conditions may impact visual clarity. Regular eye exams are crucial for detecting any deviations from normal vision and addressing them promptly.

The Importance of Regular Eye Exams

Eye exams play a pivotal role in maintaining good eye health and optimal visual acuity. During an eye exam, our optometrist will evaluate visual acuity, eye alignment, depth perception, and peripheral vision. This comprehensive assessment helps identify any underlying issues and allows us to provide promote treatment to preserve or enhance your vision.

Contact Us for an Appointment Today

If you're due for a check-up or experiencing vision changes, let our team at AssureVision in Arlington Heights and Barrington, IL, help. To schedule your eye exam or learn about our services, contact our Arlington Heights location at (847) 368-9999 or our Barrington office at (224) 407-2020 today. When you’re seeking an optometrist near me, we look forward to assisting you!