I'm getting eyestrain, headaches, and mild motion sickness with my 13" Macbook Pro Summer 2009.
So far I have traced it down to the following causes:
1) The mirror-like gloss: Each eye sees two different reflections, which is disorienting, and the reflection bounces when the laptop is in motion, like when typing on a table that wiggles a little. This causes motion sickness, as in headache and nausea. The reflections these MBPs are much higher than the white Macbook, I'd say about 5-10x brighter.
2) The black bezel, high brightness, and high contrast: the blacks are really black, meaning your iris opens wider to let in more light, but then the brights are really bright, so your retina gets hit with sharp patches of light, causing eye pain and headaches.
3) Strong pixel-walk issue: Versus my old powerbook, there is a noticeable flicker or shimmer on the MBP due to uneven common-voltage being sent to the LCD pixels. The flicker is 30Hz, imagine what that's doing to your brainwaves. See explanation here:
http://www.lagom.nl/lcd-test/inversion.php
Short of returning this MBP, I have handled the above effects by:
1) turning down brightness to 50%
2) then calibrating using advanced settings, making sure that white point is made warmer (6000k) and that the gamma is set around 2.0-2.2.
The gloss glare is still a problem. I haven't tried an anti-glare film yet, though I heard it makes everything look grainy. Anyone have experience with that?
Also the 30Hz flicker remains a problem, although turning down the brightness and calibrating the gamma to make lower contrast reduces it somewhat.
Apple needs to do something about the gloss on these 13" MBPs, like offer a matte option, or some anti-glare coating on the glass. Had no idea how glossy these things were. I'm contemplating returning this laptop still, since my G4 Powerbook is so much easier to look at... can stare at it for 10 hours straight and not get eye strain. Yet this MBP, just 10 minutes at factory settings causes my eyes to feel like they're getting gouged out with a spork. After applying the above changes, now I can look at it for maybe an hour before the same happens.