

A screen can sit wrong in two directions. Too far away and you find yourself craning in to read. Too close, especially with a big monitor, and it fills your whole view in a way that can feel oddly tiring. Getting it comfortable is about two things working together, how far away the screen sits and how big the text is on it, and both are quick to sort.
When a screen is too far or the text is too small, the instinct is to lean in, and your head and neck come with you. When a large screen is too close, the opposite problem shows up. It fills so much of your vision that you have to turn your head to take in the edges, and some people feel a little dizzy or unsettled with all that so near. Neither is comfortable to hold for a full day, and both are easily nudged back into a better spot.
Monitors have grown, and a large screen sat at the distance you would use for a laptop is simply too close. A good check is whether you can see the whole screen, edge to edge, using your eyes rather than swivelling your head. If you cannot, ease it back. Around an arm's length is a fair starting point, and the bigger the screen, the more room it tends to want. Give it a day or two if it feels far at first, as your eyes soon settle.
Here is the part people miss. You can have the screen at a perfect distance and still end up hunched forward, simply because the text is too small to read from there. Your body follows your eyes, so small text quietly pulls you in whatever the distance. The fix is to make the words bigger rather than moving yourself closer. Bumping up the text size or zoom, so you can read easily while sitting right back, does more for your neck and back than distance alone ever will.
The two settings work as a pair. You could try setting the distance first, back far enough to take in the whole screen without moving your head, then turning up the text size until you can read it while sitting back in your seat. A simple rule of thumb: if you keep finding yourself leaning in, make the text bigger rather than shifting the screen nearer. Let the screen come to you.
Every so often, look up and let your eyes rest on something far across the room for a few seconds. It gives the little focusing muscles inside your eyes a chance to switch off, and it naturally resets you back into your seat. If your neck feels tight after a stretch of close work, VIDA has a short guided stretch video you can follow at your own pace to ease it out.