![]() Ergonomic research suggests and optimal screen height of 15-20 degrees below eye level. A disadvantage of larger and multiple screen monitors is that they are typically positioned directly at eye level instead of in this downward position of gaze which increases discomfort significantly. Research shows that viewing screens with a downward gaze is the most comfortable for the eyes because it encourages a more natural blink rate. Larger or multiple screen monitors require our eyes to be open wider and slow blink rate down as our brain focuses on peripheral vision to scan between multiple displays. ![]() In a survey of more than 10,000 adults, only 53% of Americans working on a single screen experienced digital eye strain symptoms, compared to 75% of Americans who used multiple screens. While it may be tempting if your eyes are bothering you to request a larger or even second monitor for work, thinking that a bigger viewing area will make things easier, the science actually shows making monitors larger or using multiple screen monitors is much more uncomfortable for the eyes. In this same study, 75% of the medical students involved stated they would reduce their screen time as a measure to prevent dry eye. In a 2018 study of 100 medical school students, screen time caused 58.8% of participants to experience eye strain and fatigue, 23.3% reported headaches, and 13% reported blurry vision. As expected, studies show that people working and reading on screens report significant discomfort. ![]() But when we are looking at screens, our blink rates plummet by as much as 66%, meaning less tear film released onto the surface of the eyes, and thus drier eyes. ![]() In order to keep our eyes hydrated, our body is internally wired to blink roughly every 13 seconds, releasing the oil that makes up our tear film with every blink. If you've noticed your eyes are feeling more tired, dry, and irritated than ever, that's because of our new best friend the screen as well. Whether you are working, reading, or mindlessly scrolling social media, screens are our constant companion these days. ![]()
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