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What you were taught

"Reading in dim light ruins your eyesight"

What we know now

The human eye is designed to adapt to different lighting conditions. While reading in dim light can cause temporary eye strain, it does not cause lasting damage to your vision, a fact widely accepted and publicized by the early 2000s.

Updated understanding emerged around 2000

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Built with curiosity about how knowledge evolves • Data compiled from scientific literature and educational research