20/40 vision refers to visual acuity or the clarity and sharpness of vision. It’s a measure of the ability to see details from a distance and is usually determined through a standard eye chart test.
To find out what your visual acuity is, schedule an eye exam with East Dallas Family Eye Care in Pleasant Grove.
What is a Normal Range for Visual Acuity?
A visual acuity test is one of the first tests your eye doctor will perform during a comprehensive eye exam. In most cases, you’ll be asked to read letters and numbers on an eye chart from a specific distance.
The tiniest row on the chart that you can read determines your visual acuity. People with normal (20/20) vision are able to read the smallest letters on an eye chart from 20 feet.
What Does 20/40 Vision Look Like?
20/40 means an individual can see objects at 20 feet that most people with normal eyesight can see at 40 feet. This means if you score 20/40 on a visual acuity test, you need to be 20 feet away from an object that people with normal eyesight can see from 40 feet.
While 20/40 vision is considered to be below average, it is not necessarily considered to be a problem. Some people with 20/40 vision may not even know they have a vision problem, since they’re used to seeing faraway objects as blurry. However, for others, 20/40 vision can be a hindrance.
Book A Comprehensive Eye Exam With Pleasant Grove
Getting regular eye exams is key for keeping up with your eye health and knowing what your current visual acuity is. Be sure to book an eye exam with East Dallas Family Eye Care in Pleasant Grove. If your vision is below average, you and your eye doctor can discuss whether it’s time for eyeglasses or contact lenses, which can provide you with clearer, more comfortable vision.