Ask HN: I get headaches. What sensors can I get to collect data about them?

Re:Ask HN: I get headaches. What sensors can I get to collec... by hanniabu on Monday March 05, 2018 @11:58PM (#16526960)

> 60 hertz flickering lights, bad eyesight, are all causes of eye strain.

If that's the case, it's funny we would choose to use 60fps for games. Shouldn't that have a similar affect with flickering between scenes? Or actually I guess the new scene replaces the old scene rather than going dark in between like what happens with a flickering light

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Re:Ask HN: I get headaches. What sensors can I get to collec... by bb88 on Sunday March 11, 2018 @10:27PM (#16565855)

Apologies for not seeing your post until just now.

Back in the day, The multi-sync CRT's would sync VBLANK[1] to the power line if the screen was at 60hz. If a fluorescent tube overhead was also 60hz, the flicker became unavoidable and caused many an office worker a migraine headache. To avoid this issue, graphics cards and monitors started syncing at 85hz.

With an LCD panel at 60hz, the backlight is not flickering, and the screen itself is not vanishing off the display like it is on the CRT.

The reason to use 120hz and higher these days is to prevent motion blur. [2]

[1] https://en.wikipedia.org/wiki/Vertical_blanking_interval

[2] https://www.cnet.com/news/ultra-hd-4k-tv-refresh-rates/

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Re:Ask HN: I get headaches. What sensors can I get to collec... by sushid on Wednesday March 07, 2018 @05:53PM (#16540741)

More dedicated gamers don't actually use 60hz monitors. I personally use a 155hz IPS monitor but there are 240+hz TN panels for gamers out there.

All pros use at least a 144hz panel.

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