Do you get nervous when you stand in front of the vision screening poster at your doctor's office? Maybe you try and cheat by uncovering one eye just slightly. All the while you are hoping for 20/20 vision. But what exactly is 20/20 vision and why does it matter? In this article, we will cover everything you should know about your vision score and what to expect if you don’t have 20/20 vision.
What is 20/20 vision?
In general, people know that 20/20 vision is good, but what does it mean?
Imagine looking at an object that is 20 feet away from you. If the object looks clear and sharp, you likely have 20/20 vision. If the object doesn’t look defined at 20 feet away, you may have a higher bottom number, for example, 20/100. If this is the case, it means that you can see at 20 feet what someone with average vision can see at 100 feet away.
Basically, someone who has less than 20/20 vision will need to be closer to an object to see it as clearly as someone with 20/20 vision.
20/20 vision defined
The American Optometric Association (AOA) defines 20/20 vision as “a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet.” It’s important to note that 20/20 vision is not considered a “perfect or ideal vision” by the medical community.
Other considerations for good vision
While 20/20 vision is one indicator of having good vision at a distance, there are other factors that must be considered. These include:
- Peripheral awareness (side vision): The ability to see out of the corners of our eyes.
- Eye coordination: The ability for both eyes to work together as a team.
- Depth perception: The ability to see objects in three dimensions.
- Color vision: The ability to distinguish between different hues and colors.
- Focusing ability: The ability of eyes to rapidly focus on objects that are near and far.
Visual clarity and the vision abilities listed above all must function correctly to have good vision. A comprehensive vision exam considers all sight abilities to determine whether your vision is normal.
What happens if I don’t have 20/20 vision?
If you don’t have 20/20 vision, there is no need to worry! In fact, it’s estimated that only 35 percent of all adults living in the United States have 20/20 vision without vision correctors.
There are plenty of options to correct your vision. Your eye doctor will help you decide which corrector is right for you based on your needs and comfort. The most common vision correctors include:
- Glasses
- Single vision lenses
- Multifocal lenses
- Contacts
- Soft contact lenses
- Hard contact lenses
- Multifocal contact lenses
- Vision correction surgery
For a full list of common vision correction options click here.
The right tool for you will depend on things such as your comfort level, how often you need to wear a vision corrector, cost, type of vision problem, and lifestyle. Be sure to work with your eye doctor to make sure you choose the option that is effective and comfortable.
Learn more about Why Healthy Eyes Matter to our Overall Health.
Learn more about why we are talking about vision health.
