TLDR
In Defense of Light Mode: Research Says Its Better For Eye Health. An overwhelming majority of survey respondents expressed a preference for dark mode over light mode. The majority of actual evidence-based, rigorous research seems to point to light mode being more advantageous for both eye health and legibility. A 2018 study found that the eye behaves reading positive polarity may lead to myopia (nearsightedness) in the long term. A recent realization that dark mode provides nearly no research-backed benefit to the reading comfort and eye health of average users was surprising.via the TL;DR App
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