Last night, I performed the checkerboard test for 10 minutes. After looking at the checkers for 45 seconds, I looked at my wall and saw the checker image on the wall for a good twenty seconds. Maybe, The IR can be caused by staring at a retina screen for too long and that image is burned in your eye retina momentarily. The retina image is so sharp, It can actually play tricks on your eyes. This is just a theory
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IR theory
- Thread starter Alexjones
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And its wrong.
There are videos of this issue on youtube. (this is one example)
If your theory was right, then there wouldn't be any.
You can for sure mess your sight up if you stare at the test to long, but that is not what is going on here.
I have to admit, I do see a hint of IR on my exchanged rMBP that i got last night. This is my second one. I don't want to exchange it again. Is there a test besides the checker test that i can try to be sure?
Don't exchange it. There is nothing wrong with it. You're doing things to it when you run that "test" that are nowhere near typical in everyday use. It's completely silly.
There are cases of real IR. That being said, I think some of the more obsessive people here are experiencing this as an optical illusion as pointed out by the OP. Especially those complaining about it recently.
For a more real-world test, people should set their dock to not hide. They should use their computer as they normally would. When they're done, they should flash an all white screen up and check to see if the dock is retained. If not, don't worry about it. Some of you guys can be a tad obsessive.
For a more real-world test, people should set their dock to not hide. They should use their computer as they normally would. When they're done, they should flash an all white screen up and check to see if the dock is retained. If not, don't worry about it. Some of you guys can be a tad obsessive.
I ran the IR test on both my rMBP 13" and my new retina iPad Mini. In both cases I made sure not to look at the screen at all while the test was running.
If your display actually has an IR issue, it's not just a matter of "I think I saw a checkerboard for .00001 seconds after running the test for 18 hours straight!" Displays with actual IR are immediate and extremely obvious.
My rMBP doesn't have IR (thank goodness) but on my retina iPad Mini, it's readily apparent and unmistakeable.
If all you're seeing is "a hint of IR" then chances are you aren't actually affected by the issue.
If your display actually has an IR issue, it's not just a matter of "I think I saw a checkerboard for .00001 seconds after running the test for 18 hours straight!" Displays with actual IR are immediate and extremely obvious.
My rMBP doesn't have IR (thank goodness) but on my retina iPad Mini, it's readily apparent and unmistakeable.
If all you're seeing is "a hint of IR" then chances are you aren't actually affected by the issue.
It's a well known fact that our retinas are extremely sensitive and retain high contrast images. The checkerboard test is just to exaggerate the image retention of the screen to confirm the presence of IR. During regular usage, your retinas won't retain nearly enough image for the standard usage IR on your rMBP to be visible.
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