It’s better to look slightly down at your monitor. The top of your screen should sit at or just below eye level, placing the center of the display about 15 to 20 degrees below your horizontal line of sight. Looking upward at a screen strains your neck, dries out your eyes faster, and forces your body into a posture it can’t sustain comfortably over hours of work.
Why a Downward Gaze Is Easier on Your Body
Your eyes naturally rest in a slightly downward position when your head is upright and relaxed. Placing a monitor above eye level forces you to tilt your head back, which compresses the vertebrae in your upper neck and tightens the muscles across your shoulders. Over a full workday, that adds up to stiffness, tension headaches, and chronic neck pain.
A downward gaze also protects your eyes. When you look up, your eyelids open wider, exposing more of the eye’s surface to air. That increases tear evaporation and contributes to dry, irritated eyes. Research by Tsubota and Nakamori found that lower monitor placement reduces the amount of eyeball exposed to the atmosphere, keeping eyes more moist and lowering the risk of dry eye syndrome. If you already deal with dry or tired eyes after long screen sessions, a monitor that’s too high could be making it worse.
The Ideal Monitor Position
OSHA recommends placing the top line of the screen at or slightly below eye level. That puts the center of the screen 15 to 20 degrees below horizontal, which is the sweet spot for comfort and neutral neck posture. Your downward viewing angle should never exceed 60 degrees at any point on the screen, meaning the very bottom of a large display shouldn’t be so low that you’re hunching forward to read it.
Distance matters too. For a 20 to 24 inch monitor, aim for about 20 to 30 inches between your eyes and the screen. Larger monitors (27 inches and up) generally work better with a bit more distance. If you find yourself leaning in to read text, increase the font size or scaling in your operating system rather than pulling the screen closer.
Tilt the monitor back about 10 to 20 degrees so the screen surface stays roughly perpendicular to your line of sight. This prevents glare from overhead lighting and keeps the entire screen in sharp focus without you needing to adjust your head position. The monitor should also sit directly in front of you, not off to one side. OSHA notes it should be no farther than 35 degrees to the left or right of center.
Adjustments for Glasses Wearers
If you wear bifocals or progressive lenses, the standard advice shifts. These lenses have the reading zone at the bottom of the lens, so you naturally tilt your chin up to look through that portion. With a monitor at the usual height, this chin-up posture strains the neck in the same way a too-high monitor would for anyone else.
The fix is to lower the monitor several inches below where you’d normally place it and tilt the screen back more aggressively, around 30 to 45 degrees. This lets you look through the reading portion of your lenses while keeping your head and neck in a neutral position. Stanford’s ergonomics guidelines specifically recommend this approach for anyone wearing bifocals or progressive lenses.
Standing Desks Change the Math
The “top of screen at eye level” rule applies whether you’re sitting or standing, but your eye level changes between the two. When you stand, the distance between your eyes and your elbows increases by about 4 centimeters (roughly 1.5 inches) compared to sitting. That means a monitor height that works perfectly when you’re seated will be too low once you raise your desk.
If you switch between sitting and standing throughout the day, a fixed monitor height will always be wrong in one position. The practical solution is a monitor arm that adjusts independently from the desk surface. When you stand up and raise the desk, bump the monitor up by about 4 centimeters so the top edge returns to eye level. When you sit back down, lower it again. Some monitor arms have preset positions that make this a one-handed adjustment.
Signs Your Monitor Is Too High or Too Low
A monitor placed too high typically causes pain in the back of the neck, tension across the tops of the shoulders, and dry or irritated eyes by the end of the day. You might also notice you’re tilting your chin upward or leaning back in your chair to see the screen comfortably.
A monitor that’s too low creates a different set of problems. You’ll tend to round your upper back and drop your head forward, which strains the muscles along the back of the neck and between the shoulder blades. If you catch yourself hunching or looking steeply downward, the screen needs to come up. A stack of books, a monitor riser, or an adjustable arm can all solve this quickly. The goal is a relaxed, neutral posture where your head balances over your spine and your eyes fall naturally to the upper third of the screen without effort.