If your screen time guilt is peaking and your parents’ old eye warnings still echo in your head, relax. Your phone is not destroying your vision. But believing the wrong eye myths can absolutely keep you from getting the care that protects it.
Nearly 93 million U.S. adults are at high risk for serious vision loss, yet only about half get routine eye exams that could catch problems early. At the same time, our screen-heavy lifestyles are taking a toll. More than two-thirds of adults report digital eye strain, and 68% say it affects their productivity.
To clear the fog, nationally acclaimed ophthalmologist, cosmetic surgeon, TEDx speaker, and author Dr. Emilio M. Justo is setting the record straight. Dr. Justo is the founder of the Arizona Eye Institute & Cosmetic Laser Center, a AAAHC-accredited practice serving the Northwest Valley, and he has spent decades correcting what people get wrong about their eyes.
Here are the most common eye myths he says need to go.
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“Reading in the dark will ruin your eyes.”
False. Your eyes may feel tired and you might get a headache, but reading in dim light does not cause permanent damage. Once your eye muscles rest, they recover. -
“Carrots are the best food for your eyes.”
Overrated. Carrots contain vitamin A, but leafy greens like spinach, kale, and collard greens provide lutein and zeaxanthin that help protect the retina. Fatty fish like salmon support dry eye with omega-3s, and egg yolks deliver highly bioavailable eye-healthy carotenoids. -
“Wearing glasses will make your eyesight worse over time.”
False. Vision changes happen because of conditions like presbyopia, myopia, or astigmatism. Wearing glasses does not accelerate them. You will simply see better while they progress naturally. -
“If you cross your eyes, they will stay that way.”
False. Temporarily crossing your eyes does not lock the muscles in place. This myth survived decades of school picture day warnings, not medical evidence. -
“Too much screen time will permanently damage your eyes.”
False, with a caveat. Screens do not cause vision loss, but they can trigger digital eye strain, including blurry vision, dry eyes, headaches, and neck or shoulder pain. The fix is the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds. -
“Blue light from screens is destroying your eyes.”
Exaggerated. Blue light can disrupt sleep cycles by suppressing melatonin, but current evidence does not show retinal damage from screen exposure. Most blue light exposure actually comes from the sun, not devices. -
“You only need an eye exam if you have symptoms.”
Dangerously false. Many serious eye diseases are silent until permanent damage occurs. Glaucoma often has no pain or early vision changes. Diabetic retinopathy can go unnoticed until bleeding or vision loss begins. Macular degeneration can progress gradually, making early detection essential.
The real risk is not screens, glasses, or dim lighting. It is skipping routine eye care and trusting myths over medicine. For more information on Arizona Eye Institute & Cosmetic Laser Center, visit arizonaeyeinstitute.com.
