Have you ever been told that sitting too close to the TV will ruin your eyes? Or that eating carrots is all you need for perfect vision?
Many of us grew up believing these common eye myths. While some contain a small grain of truth, most are outdated or simply inaccurate. Knowing the facts can help you make better decisions about your family’s eye health.
Here are the 10 most common vision myths—debunked by your Dana Point eye doctor.
1. Myth: Sitting Too Close to the TV Will Ruin Your Eyes
The Truth: Today’s televisions won’t permanently damage your eyes.
Years ago, older televisions emitted small amounts of radiation, which led parents to warn children not to sit too close. Modern LED, LCD, OLED, and smart TVs no longer pose that risk.
However, sitting very close to the television can cause:
- Eye strain
- Dry eyes
- Temporary blurry vision
- Headaches
If your child consistently sits much closer to the TV than everyone else, it could be a sign they aren’t seeing clearly and should have their vision checked.
2. Myth: Reading in Dim Light Will Damage Your Eyes
The Truth: Reading in poor lighting causes eye strain—but it won’t permanently change your vision.
When the lighting is dim, your eyes and focusing muscles have to work harder, which can lead to:
- Eye fatigue
- Temporary blurry vision
- Headaches
- Difficulty concentrating
The discomfort usually goes away after resting your eyes.
Tip: Use good lighting whenever possible and follow the 20-20-20 Rule during long reading sessions: Every 20 minutes, look 20 feet away for 20 seconds.
3. Myth: Carrots Are the Best Food for Your Eyes
The Truth: Carrots are healthy, but they aren’t the only food your eyes need.
Carrots contain beta-carotene, which your body converts into Vitamin A. Vitamin A is essential for healthy vision, especially night vision.
For lifelong eye health, your diet should also include:
- 🥬 Leafy greens like spinach and kale (lutein and zeaxanthin)
- 🍓 Colorful fruits rich in Vitamin C
- 🐟 Fatty fish like salmon (Omega-3 fatty acids)
- 🥜 Nuts and seeds (Vitamin E)
- 🥚 Eggs
Think of eye nutrition like building a championship team—no single food can do all the work.
4. Myth: Wearing Glasses Makes Your Eyes Weaker
The Truth: Glasses don’t weaken your eyes (with exception)
Many adults notice their near vision gets worse after age 40. This is called presbyopia, and it happens because the natural lens inside the eye becomes less flexible with age—not because you’ve worn glasses.
For children, the story is a little different.
Kids with nearsightedness (myopia) often experience worsening vision as they grow. Fortunately, newer treatments, including FDA-approved Stellest® lenses, have been shown to help slow myopia progression in appropriate children.
Your glasses aren’t making your vision worse—they’re helping you see your best.
5. Myth: I Have 20/20 Vision, So I Don’t Need an Eye Exam
The Truth: 20/20 vision is only one small part of an eye exam.
Seeing clearly doesn’t necessarily mean your eyes are healthy.
During a comprehensive eye examination, your optometrist evaluates:
- Eye health
- Glaucoma
- Cataracts
- Macular degeneration
- Diabetic eye disease
- Retinal tears and detachments
- Dry eye disease
- Early signs of high blood pressure, diabetes, and other systemic conditions
Many eye diseases develop silently, without pain or changes in vision.
That’s why routine eye exams remain important—even if you think you see perfectly.
6. Myth: Eye Exercises Can Improve Your Vision
The Truth: Eye exercises won’t eliminate the need for glasses or contacts.
You may see videos online claiming eye exercises can permanently improve eyesight. Unfortunately, these exercises do not change your prescription.
However, there is an important exception.
Vision therapy, performed by optometrists who specialize in binocular vision, can successfully treat certain conditions such as:
- Convergence insufficiency
- Some eye turns (strabismus)
- Focusing disorders
- Eye tracking problems
- Certain binocular vision disorders
Vision therapy is a medically supervised treatment—not the same as internet eye exercises.
7. Myth: Screen Time Permanently Damages Your Eyes
The Truth: Screens don’t permanently harm your eyes, but they can make them feel miserable.
When using digital devices, we naturally blink much less. Sometimes nearly 50% less than normal!
This can lead to:
- Dry eyes
- Blurry or fluctuating vision
- Eye fatigue
- Headaches
A few simple habits can help:
- Follow the 20-20-20 Rule
- Blink more often
- Adjust screen brightness
- Take regular breaks
If your eyes frequently feel dry or tired after screen use, an eye exam can help determine whether dry eye treatment or updated glasses would help.
8. Myth: Sunglasses Are Only for Sunny Days
The Truth: UV protection is important all year long.
Ultraviolet (UV) rays can damage your eyes even on cloudy days.
Long-term UV exposure has been linked to:
- Cataracts
- Macular degeneration
- Growths on the eye, such as pingueculae and pterygia
- Skin cancers around the eyelids
Children should wear sunglasses, too, since UV damage accumulates over a lifetime.
Choose sunglasses labeled 100% UVA and UVB protection whenever you’re outdoors.
9. Myth: A Contact Lens Can Get Lost Behind Your Eye
The Truth: It’s anatomically impossible.
Many contact lens wearers worry that a lens can disappear behind the eye.
Fortunately, it can’t.
A thin membrane called the conjunctiva covers the white part of your eye and lines the inside of your eyelids, creating a barrier that prevents a contact lens from traveling behind the eye.
Sometimes a lens can fold or become trapped under the upper eyelid, but it can always be removed safely.
10. Myth: Kids Will Outgrow Blurry Vision
The Truth: Most children don’t simply outgrow vision problems.
Children often assume everyone sees the world the way they do, so they may not complain about blurry vision.
Uncorrected vision problems can affect:
- Reading
- School performance
- Sports
- Confidence
- Safety
Nearsightedness (myopia) usually progresses as children grow.
The earlier vision problems are detected, the more treatment options are available including myopia management strategies that may help slow worsening vision.
Routine children’s eye exams are one of the best investments parents can make in their child’s health and education.
The Bottom Line
The internet is full of eye care advice—but not all of it is accurate.
The best way to protect your family’s vision is through regular comprehensive eye examinations, healthy habits, proper nutrition, UV protection, and early treatment when problems arise.
Whether you have a toddler, a teenager, or simply want to protect your own eyesight, staying informed is the first step toward lifelong healthy vision.
Schedule Your Eye Exam at Monarch Bay Optometry
At Monarch Bay Optometry in Dana Point, California, we’re committed to helping families see clearly and keep their eyes healthy for life.
Our comprehensive eye exams evaluate much more than your vision. They help detect eye diseases early, monitor children’s visual development, address digital eye strain and dry eye, and provide personalized recommendations for every stage of life.
If it’s been over a year since your last eye exam, or if you have concerns about your child’s vision, we’d love to help. Schedule your appointment today and keep your family’s eyes healthy for years to come.
