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Submission + - Massive rise in myopia (bbc.co.uk) 1

slew writes: According to this recent study submitted to lancet, an alarming 80-90% of students in east Asian cities have myopia. The study speculates that the culture of educational pressure combined with reduced exposure to outdoor light have conspired to create this epidemic. This conclusion was drawn from a recent retrospective study at cambridge which correlated extra hours outdoors with reduced chance of myopia (~2% drop for each additional hour per week spent out-of-doors).

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