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by red75prime 2877 days ago
Judging by the relative light intensities of daylight and computer screen light, I would say it will be sufficient to close your eyes for 6 minutes when you are outside on a sunny day to offset 10 hours of computer use.

Maybe dark adaptation can change that, but I haven't found anything about that upon quick unprofessional examination of [0].

[0]: http://twin.sci-hub.tw/6979/4112e16f7195f7f33cd3e861c6345df0...