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Old 10-09-2018, 06:05 PM   #1
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Is the inverted text better for your eyes?

Is reading on the Oasis 7” with white text on the black background actually better for your eyes?

I’ve set mine to this all this week, as I’m testing out kcladyz's observation that she gets better battery life this way.

Is it as good for your eyes as reading using the 'comfort light' on other readers? Or is there still blue light reaching your eyes?
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Old 10-09-2018, 06:08 PM   #2
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This is not something any one can answer but You.
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Old 10-09-2018, 06:12 PM   #3
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I was hoping someone that knows something about the physics/properties of light waves would be able to help with a scientific answer.
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Old 10-09-2018, 07:09 PM   #4
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I was hoping someone that knows something about the physics/properties of light waves would be able to help with a scientific answer.
At the same light brightness setting, inverted mode will send much less light to your eyes, so the amount of blue light will also be much less.
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Old 10-09-2018, 07:31 PM   #5
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I thought I'd like the inverted reading mode, but haven't used it much. When reading in the dark, there is something about E-ink flashing from dark to light for each page turn that is briefly uncomfortable for me. I guess if your eyes are adjusted to the lower levels of the black page, then that glimpse of the white page is a bit like an oncoming car at night.

I do sometimes like the dark mode on an iPad, but of course that stays dark the whole time.
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Old 10-09-2018, 07:44 PM   #6
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I thought I'd like the inverted reading mode, but haven't used it much. When reading in the dark, there is something about E-ink flashing from dark to light for each page turn that is briefly uncomfortable for me. I guess if your eyes are adjusted to the lower levels of the black page, then that glimpse of the white page is a bit like an oncoming car at night.

I do sometimes like the dark mode on an iPad, but of course that stays dark the whole time.
Do you have your Oasis set to refresh every page? The other setting seems to be Once per chapter and after illustrations. Even a single flash is too much for me, so I don't use invert mode myself.

Little black dribbles from deferred refresh bother me a lot, but the Oasis is much improved and I don't notice any.
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Old 10-09-2018, 08:31 PM   #7
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I'd really like to try inverted text but my Oasis doesn't have it.
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Old 10-09-2018, 08:57 PM   #8
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I tried reading with the white on black text and didn't like it. So I switched back. I did try leaving the inverted text on when I closed my Oasis 2 with the cover, like kcladyz was trying but it didn't help with my battery unfortunately. I do believe her if she says she gets better battery life from doing that. You may have better results too. I'm borderline awful with my battery usage anyway.
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Old 10-09-2018, 09:14 PM   #9
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I'd really like to try inverted text but my Oasis doesn't have it.
Only the 2017 Oasis with the 7" screen has it. It is hidden under

Settings -> All Settings -> Accessibility -> Invert Black and White
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Old 10-09-2018, 09:23 PM   #10
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I'm not a fan. I tried it on my Oasis but found, in a dark room, it reduced the contrast too much. I turned the lighting up brighter, which didn't help.

On a backlit device the white text, even with the screen light turned way down, the letters were like little shards of light. Not pleasant at all, it was very hard on my eyes.

I should mention, when I read in bed, I take my glasses off, and hold the device about 7" from my eyes. I'm sure that has something to do with my dislike of inverted text.

The only time I've found inverted text to be a benefit is if I'm using my iPad mini or my iPhone in a bright place, like in the sun or under a bright overhead light.
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Old 10-09-2018, 10:07 PM   #11
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Only the 2017 Oasis with the 7" screen has it. It is hidden under

Settings -> All Settings -> Accessibility -> Invert Black and White
It's not there either. Thanks though. Mine was advertised as 8th generation, whatever that means.
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Old 10-10-2018, 12:40 AM   #12
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Unfortunately when I turn my inverted mode on, my Oasis insists on turning the light on minimum up so high that it is unusable bright. In the dark it looks more like grey and nowhere close to black. So I settled for regular mode with light at 1.
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Old 10-10-2018, 08:36 AM   #13
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We got the answer years ago when all books switched to black paper with white print. That pretty well settled it.
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Old 10-10-2018, 11:26 AM   #14
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Do you have your Oasis set to refresh every page? The other setting seems to be Once per chapter and after illustrations. Even a single flash is too much for me, so I don't use invert mode myself.
True... I do have it set to full refresh, and it may be better with that setting off.

Another annoying thing with the inverted text page turns (on full refresh) is that it seems to quickly render the page in standard black-on-white before inverting to white-on-black. It feels... glitchy.
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Old 10-10-2018, 02:44 PM   #15
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I would think it depends on ones eyes. I tried it, but after like 5 minutes, my eyes start watering from straining. The white letters just "floating" around on the black screen. Its not comfortable for me at all. And yes, I tried different light setting. Didn't make a difference. It just kind of "dissolves" the straight line of sentences. For lack of better way explaining that.
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