How Computer Screens Affect Our Eye Health

The digital age translates to an overwhelming presence of digital screens in workplaces and homes. Working individuals and the youth spend their entire day engaged with such devices. For many, the inevitable results are tired eyes and headaches by the end of the day. 

Experts call it digital eyestrain. It can also happen when doing things that require sustained careful attention, including driving a car or spending a long time reading. However, it is more common with extended computer use.

What Causes Digital Eyestrain?

Digital eyestrain develops due to prolonged near-vision tasks. According to the Vision Council, most American adults (87%) spend at least two hours a day using digital devices.

In comparison, the figure is 76% for children. Both demographics are susceptible to experiencing various symptoms associated with digital device exposure. Eyestrain is the most common complaint.

Other factors can contribute to the development of this condition, including:

• Preexisting eye issues such as dry eye or other vision-related conditions

• Prolonged concentration on visually demanding tasks

• Fatigue or high levels of stress

• Working in poorly lit or excessively bright environments for extended periods

Direct Causes of Digital Eyestrain

Blue Light Exposure

High energy and short wavelength are the defining characteristics of blue light. It is naturally present in light sources. The main concern with blue light is its ability to suppress the production of melatonin.

This is a hormone responsible for regulating sleep. When melatonin is suppressed, it becomes challenging to fall asleep at night. This can lead to insomnia, contributing to eyestrain and discomfort during the day.

Screen Time

Extended periods of screen time can lead to eye fatigue, dry eyes, and headaches. Your eyes continually work to focus when you stare at a screen for an extended period. This continuous effort can result in eye fatigue, causing symptoms like blurry and double vision. Additionally, prolonged screen use often leads to reduced blinking, resulting in dry eyes due to decreased tear production.

How to Prevent or Reduce Digital Eyestrain

• Screen Position

The position of your screen plays a significant role in developing digital eyestrain. It is essential to consider both the distance and elevation of the screen. The recommended position is to keep the screen at arm's length away from you, and the elevation should be slightly below your eye line or at the same level.

• Correct Lighting

Proper lighting is crucial in preventing digital eyestrain. Excessive light and inadequate lighting can contribute to eye discomfort. When reading a book or focusing on a task, it is recommended to have the light source positioned behind you. When watching TV, it is advisable to have slightly dimmer lighting in the room.

• Minimize Screen Glare

Minimizing screen glare to protect your eyes from digital eyestrain is essential. Glare significantly contributes to eye fatigue, headaches, and blurry vision. You can reduce glare by adjusting your screen's brightness and contrast settings. Additionally, using an anti-glare screen protector can be helpful.

• Take Breaks

Regular breaks during work or screen time can significantly reduce the risk of digital eyestrain. Taking a break every 20 minutes is recommended when using a computer. Engage in activities like taking a short walk, stretching, or simply looking out of a window to allow your eyes to relax.

For more on how computer screens affect our eye health, visit City Eyes Optometry Center at our office in Sherman Oaks, California. Call (818) 960-1300 to book an appointment today.