From smartphones and tablets to laptops and TVs, digital screens are everywhere—at home, at school, and at work. While technology keeps us connected, it also increases our exposure to blue light, a high-energy visible light emitted by most digital devices. At Simply Eyes Hawaii, we see firsthand how extended screen time affects patients of all ages across Honolulu, from Makiki students to professionals working near Ala Moana and Downtown.
Blue light can be harder for the human eye to focus on than other wavelengths. As a result, your eyes must work overtime to process what you’re seeing. Over time, this extra effort may contribute to symptoms of digital eye strain, including tired or aching eyes, headaches, dry eyes, and blurry vision. Children are especially vulnerable because their eyes are still developing and they often spend long hours on tablets or computers for school and entertainment.
Ask the Expert During Your Eye Exam
One of the most effective ways to manage blue light exposure is to discuss your daily habits with your eye doctor. During a comprehensive eye exam, your provider can evaluate how screen use affects your vision and comfort. Dr. Sherry Wong often counsels patients on practical, personalized solutions—whether that means blue-light-filtering lenses for prescription glasses or non-prescription eyewear for screen use only. These coatings can help reduce glare and visual fatigue, even if you don’t need vision correction.
Unplug and Power Down Before Bed
Blue light exposure in the evening can interfere with your natural sleep cycle by suppressing melatonin. Try powering down devices at least 30–60 minutes before bedtime. If that’s not possible, lower screen brightness and enable night mode or blue light filters. These small changes can make a noticeable difference in eye comfort and sleep quality.
Give Your Eyes a Break
Frequent breaks are essential for healthy screen habits. Follow the 20-20-20 rule: every 20 minutes, look at something 20 feet away for at least 20 seconds. Stand up, stretch, and blink often to keep your eyes refreshed and hydrated.
From classrooms to offices and everywhere in between, digital devices are a part of modern life. The good news is that with simple adjustments—and regular eye exams—you can protect your vision. Schedule an annual eye exam for yourself and your family to learn more about blue light and personalized strategies to reduce exposure.