The Truth About 20/20 Vision: Why it Doesn’t Mean you Have Healthy Eyes

Author: Mao Eye Care | | Categories: Comprehensive Eye Exam , Contact Lenses , Dry Eye Management , Eye Care Services , Eye Checkup , Eye Clinic , Eye Doctor , Eye Test , Family Eye Care , Laser Eye Surgery , LASIK Eye Care , Low Vision Rehabilitation , Myopia Control , Optometrist , Vision Test



Most people believe that having 20/20 vision is an indicator of good eye health. But the truth is, 20/20 vision only measures how well you can see objects from a distance of 20 feet. This measurement is important, but it doesn’t provide a complete picture of your eye health. There are many factors that can impact the overall health of your eyes, and it’s essential to understand them. We’re going to explain why 20/20 vision doesn’t mean you have healthy eyes so you can take better care of this vital part of your body.

The first thing to understand is that 20/20 vision only measures one aspect of your vision. This measurement is known as visual acuity, and it refers to how clearly you can see objects from a distance of 20 feet. Visual acuity is only one of many factors that contribute to your overall eye health. Other factors include color discrimination, depth perception, contrast sensitivity, and peripheral vision. Each of these factors plays an essential role in keeping your eyes healthy and functioning correctly.

Another factor to consider is that having 20/20 vision doesn’t mean you’re immune to eye diseases or disorders. Many serious eye issues, such as glaucoma, macular degeneration, and diabetic retinopathy, can develop without any noticeable symptoms in the early stages. Regular eye exams are crucial for detecting these conditions early, before they cause permanent damage to your eyesight.

Additionally, 20/20 vision doesn’t account for other underlying health conditions that can affect your eyesight. For example, high blood pressure and diabetes can both cause damage to blood vessels in the eyes, leading to vision loss. Regular medical checkups and maintaining a healthy lifestyle can help prevent these conditions and protect the health of your eyes.

It’s also important to note that spending long hours staring at digital screens can cause digital eye strain, even if you have 20/20 vision. This condition is characterized by symptoms such as eye fatigue, dryness, and headaches. To prevent digital eye strain, take regular breaks from screens, use good lighting, and adjust the settings on your devices to reduce blue light exposure.

Finally, it’s worth emphasizing the importance of wearing protective eyewear when engaging in certain activities. If you play sports, work with power tools or chemicals, or participate in any activity with the potential for eye injuries, wear safety glasses or goggles to protect your eyes. Even a small injury can cause serious damage to your eyes, so it’s always better to be safe than sorry.



Having 20/20 vision is undoubtedly a good thing, but it’s only one small piece of the puzzle when it comes to your eye health. Regular eye exams, maintaining a healthy lifestyle, and taking steps to prevent eye strain and injuries are all critical for protecting your eyes and preventing vision loss. Remember that your eyes are a vital part of your body, and taking care of them should be a top priority. By understanding the limitations of 20/20 vision and taking steps to protect your eye health, you can enjoy clear vision for years to come. If you are looking for regular eye checkups, then contact Mao Eye Care can provide you with quality vision, advice, and fit today—and in the years to come. With so many options to choose from, it can be hard to know what to look for. 

Get in touch with us today
To learn more about what we do, please click here. To contact us, please click here or call us at (519) 646-6229

Read More Blog Articles