Actually my Macbook Pro has improved my ergonomic situation. I use the built-in zoom tool, (it's the reason I bought a mac, as I have low vision) and because of the zoom feature, I can put the laptop wherever I find it comfortable but still see things. The zoom keeps me from hunching over or leaning in.
Also, I use my middle finger on the trackpad, as I need to use the middle AND index fingers to "right click", and this slight turn of my wrist completely removed the wrist pain I get from using a mouse or a normal trackpad.
But don't you end up angling your head downward to see the screen? Or angling your forearms upward to reach the keyboard? All the ergonomics material I've read suggests keeping these on the level, or possibly even angling your forearms down a bit into your lap. Almost impossible to do with just a laptop.
I've wondered about this ever since reading Peter Cochrane's comments on it. When people want to concentrate on things, we hunch over them. Nobody reads a book at arms length, head up. Nobody knits or threads a needls at arms length, or does any kind of paperwork that way. Why do we compute that way?
Yeah but my physician says it's better to look slightly downward at the screen. Which is kinda what you see with some of the standing desks too. Totally not an ergonomics guy... I just know what I was told. :/
Also, I use my middle finger on the trackpad, as I need to use the middle AND index fingers to "right click", and this slight turn of my wrist completely removed the wrist pain I get from using a mouse or a normal trackpad.