Looing down with eyes is a natural movement when head is straight, but looking down far with neck tilted (for a low laptop screen) is neck strain.
So ergonomics suggest straight ahead vision at top of monitor so heads stays directly above spine.
Having vision at center of monitor causes upward glancing or backward neck tilt. you can test yourself. stare straight ahead and lower your gaze, it is easy. Now stare straight ahead and lookup, you will feel musxlcles in your eyes and forehead adjust. with high monitors people tend to tilt head back instead.
if you really want to test you can get a head strap and weight system from your kinesthesiologist. when your neck and head is vertical you don’t feel the 2lbs of added weight, when you tilt your neck down or back the leverage is instantly felt as it exaggerates the effort to hold your head in place.
I was a CADadmin ergo person before, so I have done all these computer peripheral trials, especially for eliminating RSI
Personally, years ago when I was coding I would get neck strain from having the monitor below my eye level because I found my head movement always followed my eyes. So when my eyes were always looking slightly down, I would always start to tilt my head down to compensate. It wasn’t until I raised my monitor much higher that my headaches went away. Even now when I hold my phone, I naturally hold it to the middle of my eye level, not below.
Yeah, guidlines be guidelines. What also makes a difference is screen angle. as we like to position our head tilt to match equal distance to screen corners. phones gives everone bad posture unless you at least hold top of phone parallel to eye level. But then you get tired arms.
Looing down with eyes is a natural movement when head is straight, but looking down far with neck tilted (for a low laptop screen) is neck strain. So ergonomics suggest straight ahead vision at top of monitor so heads stays directly above spine. Having vision at center of monitor causes upward glancing or backward neck tilt. you can test yourself. stare straight ahead and lower your gaze, it is easy. Now stare straight ahead and lookup, you will feel musxlcles in your eyes and forehead adjust. with high monitors people tend to tilt head back instead. if you really want to test you can get a head strap and weight system from your kinesthesiologist. when your neck and head is vertical you don’t feel the 2lbs of added weight, when you tilt your neck down or back the leverage is instantly felt as it exaggerates the effort to hold your head in place. I was a CADadmin ergo person before, so I have done all these computer peripheral trials, especially for eliminating RSI
Personally, years ago when I was coding I would get neck strain from having the monitor below my eye level because I found my head movement always followed my eyes. So when my eyes were always looking slightly down, I would always start to tilt my head down to compensate. It wasn’t until I raised my monitor much higher that my headaches went away. Even now when I hold my phone, I naturally hold it to the middle of my eye level, not below.
Yeah, guidlines be guidelines. What also makes a difference is screen angle. as we like to position our head tilt to match equal distance to screen corners. phones gives everone bad posture unless you at least hold top of phone parallel to eye level. But then you get tired arms.